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Palo Alto NetworksZAYO GROUP HOLDINGS, INC. FORM 10-K (Annual Report) Filed 08/26/16 for the Period Ending 06/30/16 Address Telephone CIK Symbol SIC Code Industry Sector Fiscal Year 1805 29TH ST SUITE 2050 BOULDER, CO 80301 303-381-4683 0001608249 ZAYO 4813 - Telephone Communications, Except Radiotelephone Integrated Telecommunications Services Telecommunication Services 06/30 http://www.edgar-online.com © Copyright 2017, EDGAR Online, Inc. All Rights Reserved. Distribution and use of this document restricted under EDGAR Online, Inc. Terms of Use. Table of Contents UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWASHINGTON, D.C. 20549FORM 10-K☒☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACTOF 1934For the fiscal year ended June 30, 2016OR☐☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGEACT OF 1934Commission File Number : 001-36690Zayo Group Holdings, Inc.(Exact Name of Registrant as Specified in Its Charter) DELAWARE26-1398293(State or other jurisdiction ofincorporation or organization)(I.R.S. EmployerIdentification No.) 1805 29th Street, Suite 2050,Boulder, CO 80301(Address of Principal Executive Offices)(303) 381-4683(Registrant’s Telephone Number, Including Area Code)Securities registered pursuant to Section 12(b) of the Act: Title of Each ClassName of Exchange on Which RegisteredCommon Stock, par value $0.001 per shareNew York Stock ExchangeSecurities registered pursuant to Section 12(g) of the Act:NoneIndicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.Yes ☐ No ☒Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act.Yes ☐ No ☒Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities ExchangeAct of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subjectto such filing requirements for the past 90 days. Yes ☒ No ☐ Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive DataFile required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or forsuch shorter period that the registrant was required to submit and post such files). Yes ☒ No ☐Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§ 229.405 of this chapter) is not containedherein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference inPart III of this Form 10-K or any amendment to this Form 10-K. ☐Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reportingcompany. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. Large accelerated filer☒ Accelerated filer☐Non-accelerated filer☐(Do not check if a small reporting company)Smaller reporting company☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒As of December 31, 2015, the aggregate market value of the registrant’s common stock held by non-affiliates of the registrant wasapproximately $4.4 billion based on the closing price as reported on the New York Stock Exchange.As of August 19, 2016, the number of outstanding shares of common stock of Zayo Group Holdings, Inc. was 242,649,498 shares. DOCUMENTS INCORPORATED BY REFERENCE Portions of the registrant’s Definitive Proxy Statement for the 2016 Annual Meeting of Stockholders are incorporated by reference into Part IIIof this Form 10-K. Table of ContentsINDEX GLOSSARY OF TERMS i PART I. Item 1. BUSINESS 1 Item 1A. RISK FACTORS 17 Item 1B. UNRESOLVED STAFF COMMENTS 31 Item 2. PROPERTIES 31 Item 3. LEGAL PROCEEDINGS 31 Item 4. MINE SAFETY DISCLOSURE 31 PART II. Item 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS ANDISSUER PURCHASES OF EQUITY SECURITIES 32 Item 6. SELECTED FINANCIAL DATA 34 Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTSOF OPERATIONS 35 Item 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK 67 Item 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA 68 Item 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING ANDFINANCIAL DISCLOSURE 68 Item 9A. CONTROLS AND PROCEDURES 68 Item 9B OTHER INFORMATION 70 PART III. Item 10. DIRECTORS, EXECUTIVE OFFICERS, AND CORPORATE GOVERNANCE 71 Item 11. EXECUTIVE COMPENSATION 71 Item 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT ANDRELATED STOCKHOLDER MATTERS 71 Item 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTORINDEPENDENCE 71 Item 14. PRINCIPAL ACCOUNTING FEES AND SERVICES 71 PART IV. Item 15 EXHIBITS AND FINANCIAL STATEMENT SCHEDULES 72 SIGNATURES 76 Table of ContentsGLOSSARY OF TERMSOur industry uses many terms and acronyms that may not be familiar to you. To assist you in reading this Annual Report onForm 10-K, we have provided definitions of some of these terms below.3G - Third generation of cellular wireless standards and successor to the 2G standard.4G - Fourth generation of cellular wireless standards. It is a successor to 3G and 2G standards, with the aim to provide awide range of data services, with rates up to gigabit-speed Internet access for mobile, as well as stationary users.Bandwidth infrastructure - Dark fiber, mobile infrastructure and lit: bandwidth services provided over fiber networks, anddata center-based colocation and interconnection services. Fiber-based bandwidth infrastructure services that are lit (i.e., providedby using optronics that “light” the fiber) include wavelengths, Ethernet, IP, and SONET; fiber-based services that are not lit aresold as dark-fiber capacity. Data center- based bandwidth infrastructure services include colocation (space and power) as well asinterconnection within facilities.Capacity - The information carrying ability of a telecommunications service. Below is a list of some common units ofcapacity for various lit bandwidth services:DS-0, DS-1 and DS-3 - Data communication circuits capable of transmitting over SONET (or similar) at 64 Kbps, 1.544Mb and 45 Mb, respectively.OC-3, OC-12, OC-48 and OC-192 - Data communication circuits capable of transmitting over SONET at 155 Mb, 622 Mb,2.5G and 10G, respectively.1G, 2.5G, 10G, 40G and 100G - Data communication circuits capable of transmitting over Wavelengths at 1G, 2.5G, 10G,40G and 100G, respectively.10Mb and 100Mb - Data communication circuits capable of transmitting over Ethernet at 10 Mb and 100 Mb, respectively.Carrier - A provider of communications services that commonly include voice, data and Internet services.Carrier hotel - A building containing many carriers and other telecommunications service providers that are widelyinterconnected. These facilities generally have high-capacity power service, backup batteries and generators, fuel storage, risercable systems, large cooling capability, and advanced fire suppression systems.Cellular tower - An outdoor structure primarily used to attach and house antennae used by wireless carriers to aggregateand transmit mobile voice and data.CLEC - Competitive local exchange carrier; provides local telecommunications services in competition with the ILEC.Cloud computing - An Internet-based or intranet-based computing environment wherein computing resources aredistributed across the network (i.e., the “cloud”), dynamically allocated on an individual or pooled basis, and increased or reducedas circumstances warrant, to handle the computing task at hand.Colocation - The housing of transport equipment, other communications equipment, servers and storage devices within thesame location. Operators of these colocation facilities typically also sell interconnection services to their customers, enablingthem to cross connect with other customers located within the same facility and/or with Bandwidth Infrastructure providers.Conduit - A pipe, usually made of metal, ceramic or plastic, that protects buried fiber optic cables.i Table of ContentsData center - A facility used to house computer systems, backup storage devices, routers, services and other Internet andother telecommunications equipment. Data centers generally have environmental controls (air conditioning, fire suppression,etc.), redundant/backup power supplies, redundant data communications connections and high security.Dark fiber - Fiber that has not yet been connected to telecommunications transmission equipment or optronics and,therefore, has not yet been activated or “lit” by the fiber cable owner.DS - Digital signal level; a measure of the transmission rate of digital telecommunications traffic. For example, DS-1corresponds to 1.544 Mb and DS-3 corresponds to 45 Mb. See the definition of “Capacity” above.DWDM - Dense wavelength-division multiplexing. The term “dense” refers to the number of channels being multiplexed. ADWDM system typically has the capability to multiplex up to 40 wavelength channels.Ethernet - The standard local area network (LAN) protocol. Ethernet was originally specified to connect devices on acompany or home network as well as to a cable modem or DSL modem for Internet access. Due to its ubiquity in the LAN,Ethernet has become a popular transmission protocol in metropolitan, regional and long haul networks as well.Fiber miles - The number of route miles in a network multiplied by the number of fiber strands within each cable on thenetwork. For example, if a ten-mile network segment has a 144 count fiber installed, it would represent a 10x144 or 1,440 fibermiles.Fiber - Fiber, or fiber optic cables, are thin filaments of glass through which light beams are transmitted over longdistances.Fiber-to-the-Tower or FTT - The connection of cellular towers to the wider terrestrial network via fiber connections.G - Gigabits per second, a measure of telecommunications transmission speed. One gigabit equals one billion bits ofinformation.ILEC - Incumbent local exchange carrier; a traditional telecommunications provider that, prior to the TelecommunicationsAct of 1996, had the exclusive right and responsibility for providing local telecommunications services in its local service area.Interconnection service - A service that is used to connect two customers who are located within a single building or withina single colocation space using either fiber or other means.IP - Internet protocol; the transmission protocol used in the transmission of data over the Internet.IRU and IRU contract —Indefeasible right of use. The exclusive, unrestricted, and indefeasible right to use one, a pair, ormore strands of fiber of a fiber cable. IRU contracts are typically long-term in nature (20 years) and may or may not containrestrictions on the use of the fiber by the lessee.ISP - Internet service provider; provides access to the Internet for consumers and businesses.Mb - Megabits per second; a measure of telecommunications transmission speed. One megabit equals one million bits ofinformation.Meet-Me Room - A physical location in a building, usually a data center or carrier hotel, where voice carriers, Internetservice providers, data service providers and others physically interconnect so that traffic can be passed between their respectivenetworks. At any given colocation facility or data center, network owners may also be able to interconnect outside the Meet-MeRoom.Mobile switching centers - Buildings where wireless service providers house their Internet routers and voice switchingequipment.ii Table of ContentsNOC - Network operations center; a location that is used to monitor networks, troubleshoot network degradations andoutages, and ensure customer network outages and other network degradations are restored.OC - Optical carrier level; a measure of the transmission rate of optical telecommunications traffic. For example, OC-3corresponds to 155 Mb. See the definition of “Capacity,” above.On-net - Describes a location or service that is directly and fully supported by fiber.Optronics - Various types of equipment that are commonly used to light fiber. Optronics include systems that are capable ofproviding wavelength, Ethernet, IP, SONET, and other service over fiber optic cable.POP - Point-of-presence; a location in a building separate from colocation facilities and data centers that houses equipmentused to provide telecom or Bandwidth Infrastructure services.Private line - Dedicated private bandwidth circuit that generally utilizes SONET, Ethernet and wavelength technology usedto connect various locations.Route miles - The length, measured in non-overlapping miles, of a fiber network. That is the actual number of miles that anetwork cable traverses. Route miles are distinct from fiber miles (see fiber miles definition).Small cell - A location other than a cellular tower or building that is used to attach an antennae used by a wireless carriers toaggregate and transmit mobile voice and data. Typically, the location is a light pole, traffic light, or other small separate purposestructure.SONET - Synchronous optical network; a network protocol traditionally used to support private line services. This protocolenables transmission of voice, data and video at high speeds. Protected SONET networks provide for virtually instantaneousrestoration of service in the event of a fiber cut or equipment failure.Switch - An electronic device that selects the path that voice, data and Internet traffic take or use on a network.Transport - A dedicated telecommunication service to move data, Internet, voice, video or wireless traffic from one locationto another.Wavelength - A channel of light that carries telecommunications traffic through the process of wavelength-divisionmultiplexing. iii Table of ContentsPART IITEM 1. BUSINESSOverviewZayo Group Holdings, Inc. (the “Company”, “we” or “us”) is a large and fast growing provider of bandwidth infrastructurein the United States, Canada and Europe. Our products and services enable mission-critical, high-bandwidth applications, such ascloud-based computing, video, mobile, social media, machine-to-machine connectivity, and other bandwidth-intensiveapplications. Key products include leased dark fiber, fiber to cellular towers and small cell sites, dedicated wavelengthconnections, Ethernet, IP connectivity, cloud services and other high-bandwidth offerings. We provide our services over a uniqueset of dense metro, regional, and long-haul fiber networks and through our interconnect-oriented data center facilities. Our fibernetworks and data center facilities are critical components of the overall physical network architecture of the Internet and privatenetworks. Our customer base includes some of the largest and most sophisticated consumers of bandwidth infrastructure services,such as wireless service providers; telecommunications service providers; financial services companies; social networking, media,and web content companies; education, research, and healthcare institutions; and governmental agencies. We typically provideour bandwidth infrastructure services for a fixed monthly recurring fee under contracts that vary between one and twenty years inlength. We operate our business with a unique focus on capital allocation and financial performance with the ultimate goal ofmaximizing equity value for our stockholders. Our core values center on partnership, alignment, and transparency with our threeprimary constituent groups - employees, customers, and stockholders.We were founded in 2007 with the investment thesis of building a bandwidth infrastructure platform to take advantage ofthe favorable Internet, data, and wireless growth trends driving the on-going demand for bandwidth infrastructure, and to be anactive participant in the consolidation of the industry. The growth of cloud-based computing, video, mobile and social mediaapplications, machine-to-machine connectivity, and other bandwidth-intensive applications continues to drive rapidly increasingconsumption of bandwidth on a global basis. Cisco estimates that mobile data traffic will grow at a compound annual growth rateof 53% from 2015 to 2020 and that IP traffic will grow at a compound annual growth rate of 22% from 2015 to 2020. As an earlybeliever in the enduring nature of these trends, we assembled our asset base and built a business model specifically to providehigh-bandwidth connectivity to customers whose businesses depend most on the continuous and growing demand for bandwidth.As a core tenet of our strategy for capitalizing on these industry trends, we have been a leading industry consolidator and haveacquired 38 bandwidth infrastructure businesses and assets to date. Our owned, secure, and redundant fiber network and datacenters serve as the foundation for our bandwidth solutions and allow us to offer customers dark fiber solutions, networkconnectivity and colocation and cloud infrastructure services. We believe the continuously growing demand for stable and securebandwidth from service providers, enterprises and consumers, combined with our unique and dense metro, regional, and long-haul networks, position us as a mission-critical infrastructure supplier to the largest users of bandwidth.Our network footprint includes both large and small metro geographies, the extended suburban regions of many cities, andthe large rural, national and international links that connect our metro networks. We believe that our network assets would bedifficult to replicate given the geographic reach, network density, and capital investment required. Our fiber networks span over112,600 route miles and 8,700,000 fiber miles (representing an average of 78 fibers per route), serve 365 geographic markets inthe United States, Canada and Europe, and connect to approximately 24,000 buildings, including approximately 6,000 cellulartowers and 1,031 data centers. We own fiber networks in over 300 metro markets, including large metro areas, such as New York,Chicago, San Francisco, Paris, and London, as well as smaller metro areas, such as Allentown, Pennsylvania, Fargo, NorthDakota, and Spokane, Washington. Our networks allow us to provide our high-bandwidth infrastructure services to our customersover redundant fiber facilities between key customer locations. We believe our ownership and the location and density of ourexpansive network footprint allow us to more competitively service our target customers’ bandwidth infrastructure needs at thelocal, regional, national, and international level relative to other regional bandwidth infrastructure service providers or long-haulcarriers. We also provide our network-neutral colocation and interconnection services utilizing our own data centers locatedwithin major carrier hotels and other strategic buildings in 61 locations throughout the United States, Canada and France andoperate approximately 670,000 square feet of billable colocation space.1 Table of ContentsThe density and geographic reach of our network footprint allow us to provide tailored bandwidth infrastructure solutionson our own network (“on-net”) that address the current and future bandwidth needs of our customers. Our dense metro andregional networks have high fiber counts that enable us to provide our dark fiber solutions, network connectivity and colocationand cloud infrastructure services. Our networks are deep and scalable, meaning we have spare fiber, conduit access rights and/orrights of way rights that allow us to continue to add capacity to our network as our existing and new customers’ demand for ourservices increases. In addition, many of our core network technologies provide capacity through which we can continue to addwavelengths to our network without consuming additional fiber. We also believe the density and diversity of our networksprovide a strong and growing competitive barrier to protect our existing revenue base. We believe our networks providesignificant opportunity to organically connect to new customer locations, data centers, towers, or small cell locations to help usachieve an attractive return on our capital deployed. Since our founding, we have assembled a large portfolio of fiber networksand colocation assets through both acquisitions and customer demand-driven investments in property and equipment. From ourinception to date, we have completed acquisitions with an aggregate purchase consideration, net of cash acquired, totalingapproximately $5.0 billion. For the period from July 1, 2013 through June 30, 2016, we also invested approximately $1.6 billionin capital expenditures, exclusive of acquisitions and stimulus grant reimbursements, primarily to expand the reach and capacityof our networks. As of June 30, 2016, our total debt (including capital lease obligations and before any unamortized discounts,premiums and debt issuance costs) was $4,218.1 million and was primarily incurred in connection with acquisitions.Our business model focuses on providing on-net bandwidth infrastructure solutions to our customers, which results in whatwe refer to as “infrastructure economics.” Infrastructure economics are characterized by attractive revenue visibility and strongmargins coupled with operating leverage for new revenue, success-based capital investments with low maintenance capital needs,and the ability to generate significant cash flow over time. Our capital expenditure investments are primarily success-based,meaning that before we commit resources to expand our network, we have a signed customer contract that will provide us with anattractive return on the required capital investment. After committing capital to connect additional customer sites, our goal is tosell additional high-bandwidth connectivity on these new routes at a relatively low incremental cost, which further enhances thereturn we extract from our asset base. Finally, the combination of our scale and infrastructure economics results in the ability togenerate meaningful free cash flow over time.Our management is intensely focused on creating equity value for our stockholders. Our equity value creation philosophyincludes regular and rigorous financial and operational measurement, financial transparency (both internally and externally), andclear alignment of interests among employees, management, and stockholders. Our real-time measurement and reporting systemserves as the foundation for our decision making and our extensive financial and operational disclosure. We also believe infostering an entrepreneurial culture that aligns the interests of our employees, management, and stockholders.We are a Delaware corporation formed in 2007. As of June 30, 2016, we had 3,224 employees.Our fiscal year ends June 30 each year and we refer to the fiscal year ended June 30, 2016 as “Fiscal 2016”, the fiscal yearended June 30, 2015 as “Fiscal 2015”, and the fiscal year ended June 30, 2014 as “Fiscal 2014”.Bandwidth Infrastructure IndustryWe are a bandwidth infrastructure provider, and our services are a critical component of the broader $2 trillion globalcommunications industry. Bandwidth infrastructure, consisting primarily of fiber networks and interconnect-oriented colocationfacilities, plays a fundamental role in the communications value chain, similar to other types of infrastructure such as data centersand cellular towers. Bandwidth infrastructure assets are a critical resource, connecting data centers, cellular towers, and othercarrier and private networks to support the substantial growth in global data, voice and video consumption by both business andindividual consumers.Industry HistoryOur industry has changed substantially over the years. The first phase of the bandwidth infrastructure industry occurredwith the advent of the Internet and the ensuing dot com era in the late 1990s. This led to the first major wave of2 Table of Contentsfiber network deployments as a number of companies of varying backgrounds invested billions of dollars in fiber networkconstruction throughout the U.S., Canada and Europe. These fiber network developers included companies with national andinternational plans (e.g., Level 3 Communications, Qwest Communications, Williams Communications) and more regional plans(e.g., 360networks, Progress Telecom, OnFiber). Following these network builds, many of the fiber companies struggled in theearly 2000s due to the lack of sufficient demand for their high-bandwidth services. Bandwidth demand during this timeframe waslimited by the fact that many bandwidth-intensive applications (e.g. streaming video, cloud, mobile broadband, big data analytics,etc.) were either not yet contemplated or still very early in their life cycle. Instead, the majority of traffic at the time was low-bandwidth services such as voice and dial-up modem connections. In addition, the similarity of the fiber routes deployed resultedin significant overcapacity and associated pricing pressure, leaving a “last mile” gap and heavy competition and overcapacityalong these routes. These two primary factors combined to significantly limit the fiber network providers’ operating cash flows,resulting in the majority of these companies transitioning their business models, consolidating and/or seeking bankruptcyprotection.In the following years, a substantial expansion in computing power and bandwidth-intensive applications drove meaningfulbandwidth traffic growth. This growth highlighted the need to address the “last mile” gap by bringing bandwidth capacity directlyto both the consumer and business end user. The capacity and performance of the consumer last mile connection was primarilyaddressed by the expansion of cable networks and through mobile network development by wireless carriers (supported bycellular tower operators). The growing bandwidth demand of business end users was addressed by a number of focused fiberdevelopers constructing new networks to directly connect to data centers, cellular towers, government facilities, schools, hospitalsand other locations with high-bandwidth needs. These fiber network companies were generally local or regional in nature, andwere most often either survivors of the initial fiber development wave, subsidiaries of a utility parent, or owned by entrepreneurs.This period is also noted for increased financial discipline following the large speculative capital deployments of the dot com era.This is the timeframe and industry environment in which our Company was founded.The Industry TodayThe acceleration in the development of bandwidth-intensive devices and applications has resulted in a significant need tofurther fill in the “last mile” gap, leading to substantial capital investments in fiber networks by bandwidth infrastructureproviders. Bandwidth infrastructure service providers support applications such as high definition television broadcasting andvideo; online streaming video; cloud applications replacing in-house enterprise software platforms; and explosive mobile dataconsumption (Cisco found that, in 2015, global mobile data traffic was equivalent to 15x the volume of global mobile traffic fiveyears earlier in 2010). Companies whose services require large amounts of bandwidth and enterprises that consume large amountsof bandwidth are struggling to adapt to this rapidly evolving landscape, and the bandwidth infrastructure industry is growing ineconomic importance as it addresses this critical need. In addition to these demand trends, there has been significant consolidationamongst the bandwidth infrastructure services providers, validating a core tenet of the Company’s founding investment thesis.Since inception we have made 38 acquisitions in the US, Europe and Canada with an aggregate purchase consideration, net ofcash acquired, totaling approximately $5.0 billion.Industry ParticipantsWe view the participants in today’s communications industry in two distinct categories:·Providers of Infrastructure . Companies that own and operate infrastructure assets that are used to market anddeliver infrastructure services. We believe these assets would be difficult to replicate given the significantcapital, time, permitting, and expertise required. Providers of infrastructure typically enjoy long-term customercontracts, a highly visible and recurring revenue base, and attractive margins. We further categorize theseproviders of infrastructure as follows:oBandwidth Infrastructure Providers: Owners of bandwidth infrastructure assets comprised of fibernetworks and interconnect-oriented colocation facilities. Bandwidth infrastructure services include darkfiber, lit services (wavelengths, Ethernet, IP, and SONET), and colocation and interconnection servicesfor the purpose of transporting mission-critical traffic including data, voice, and video.3 Table of ContentsoData Center Providers: Owners of data center facilities that include raised floor, power and coolinginfrastructure. These facilities house and support networking and computing equipment for carriernetworks, enterprise cloud platforms, content distribution networks, and other mission-criticalapplications.oCellular Tower Providers: Owners of cellular towers, the physical infrastructure upon whichantennas and associated equipment are co-located for the wireless carrier industry.·Users of Infrastructure. Users of infrastructure may purchase infrastructure services either to provide value-added services to their customers or for their own private network requirements. We further categorize theseusers of infrastructure as follows:oCommunications Service Providers . Communication service providers, such as wireless serviceproviders, ILECs, CLECs, and ISPs, are companies that use infrastructure to package, market, and sellvalue-added communications services such as voice, Internet, data, video, wireless, and hostingsolutions.oEnd Users. End users are public sector entities and private enterprises that purchase infrastructureservices for their own internal networks. Note that end users may also address their needs bypurchasing value-added services from communications service providers.The Market OpportunityThe proliferation of smart devices and mobile broadband, real-time streaming video, social networks, online gaming,machine-to-machine connectivity, big data analytics, and cloud computing will continue to drive substantial consumer andbusiness demand for bandwidth. Cisco estimates that mobile data traffic will grow at a compound annual growth rate of 53%from 2015 to 2020 and that IP traffic will grow at a compound annual growth rate of 22% from 2015 to 2020.Communications service providers develop and deliver value-added solutions that are tailored to mass market residentialand enterprise customers whose needs continue to grow and evolve as bandwidth trends expand. Given this rapid growth and thecomplexity and cost of building and maintaining networks, communications service providers are increasingly looking tobandwidth infrastructure providers to augment the reach and performance of their own networks and support the delivery of theservices their customers demand. As this dynamic continues, bandwidth infrastructure providers will become further entrenchedas mission-critical partners to the communications service providers.Similarly, end users such as private enterprises (e.g., media/content providers, financial institutions, and hospital systems)and public sector entities (e.g., governmental agencies and school districts) have experienced significant growth and change in therole that bandwidth plays within their organizations. As these needs continue to grow in both volume and criticality, end userswill increasingly choose to directly procure bandwidth infrastructure services in order to gain more security, control and scale intheir internal network operations. An example of this disintermediation is the trend of large school districts, adapting to e-education requirements, directly purchasing dark fiber as a replacement to more value-added solutions. We believe that, as thesedynamics play out across all industries, the number of end users directly seeking bandwidth infrastructure services will continueto expand.By focusing on the reach, density, and performance of their physical networks, bandwidth infrastructure providers candeliver customized services to communications service providers and end users more quickly and with superior economics thanthese users could otherwise self-provide. Whether providing fiber connectivity to a wireless provider’s towers to enable mobilebroadband, supplying a national communications service provider with a metro fiber footprint in new markets, providing a litbandwidth connection to multiple enterprise data centers for an industrial company, providing interconnection capabilities to ahosting company within a data center, or solving for the next society-impacting innovation, bandwidth infrastructure providerswill continue to invest in and expand their infrastructure assets to meet this growing demand.Given the natural economies of scale, there has been significant consolidation among bandwidth infrastructure providers,particularly in the U.S. We believe this consolidation trend will continue in the U.S. and is beginning in4 Table of ContentsEurope and Canada. Combined with the barriers to new entrants, we foresee a decreasing number of bandwidth infrastructureproviders against a backdrop of continued strong demand for their services.Our Bandwidth Infrastructure AssetsOur bandwidth infrastructure assets consist of our fiber networks, the optronic equipment used to provide our lit servicesover our fiber networks, and our data centers where we provide colocation and interconnection services.Our Fiber NetworksOur fiber network footprint includes both large and small metro geographies, the extended suburban regions of many cities,and the large rural, national and international fiber links that connect our metro networks. Our network represents a collection ofassets that we believe is difficult to replicate. Our fiber networks span over 112,600 route miles and 8,700,000 fiber miles(representing an average of 78 fibers per route), serve approximately 365 geographic markets in the United States, Canada andEurope, and connect approximately 24,000 buildings, including approximately 6,000 cellular towers and 1,031 data centers. Ournetworks allow us to provide our high-bandwidth infrastructure services to our customers over redundant fiber facilities betweencritical customer locations. We believe the expansiveness and density of our fiber network footprint allow us to morecompetitively service our target customers’ bandwidth infrastructure needs at the local, regional, national, and international levelrelative to other regional or long-haul bandwidth infrastructure service providers. Our fiber networks also have the following keyattributes:·Extensive Coverage. Our fiber networks are located across large and small metro geographies, the extended metroand suburban regions of many cities, and traverse large rural areas to connect metro markets. This network coverageallows us to address our target customers’ needs in a variety of geographies and for a variety of applications, allwhile remaining “on-net” and maintaining infrastructure economics.·Scalable Network Architecture. Our networks are scalable, meaning we often have spare fiber, conduit accessrights and/or rights of way that allow us to continue to add capacity to our network as our customers’ demand forour services increases. In addition, the majority of our core fiber network segments utilize DWDM systems, nearlyall of which have spare capacity through which we can continue to add wavelengths to our network withoutconsuming additional fiber.·Modern Fiber and Optronics. Our modern fiber networks support current generation optronic equipmentincluding DWDM systems, carrier class Ethernet switches and IP routers. This equipment is used to provide our litservices. The vast majority of our networks are capable of supporting next generation technologies with minimalcapital investment.Metro Fiber Networks . We use our metro fiber networks to provide bandwidth infrastructure services within the metromarkets that we serve. Our metro networks are most commonly used in the following two scenarios. First, to provide servicebetween on-net buildings that are located in the same geographic market. Second, to connect our on-net buildings within a metromarket to another metro market via our regional and/or long-haul networks. We continue to expand our metro fiber networkswithin the metro geography and into the surrounding suburban areas as we extend to additional buildings to meet new demand ona success basis. Success-based expansion means that before we commit resources to expand our network, we have a signedcustomer contract that will provide us with an attractive return on required capital. In many of our metro markets, we have highcount fiber cables (sometimes as many as 864 fibers per cable) and in some cases multiple spare conduits on our metro fiberroutes. On individual segments where our fiber capacity becomes highly utilized, we seek to augment that capacity also on asuccess basis.Regional and Long-haul Fiber Networks . We use our regional fiber networks to provide bandwidth infrastructureservices between the metro markets that we serve. Our regional and long-haul networks are most commonly used in the followingthree scenarios. First, to provide service between on-net buildings that are located in different large markets (for example,Chicago and New York). Second, to connect our on-net buildings in small and mid-sized markets back to major data centers,wireless switching centers, and carrier hotels in larger markets (for example, between Lima, Ohio and Cleveland, Ohio). Third,occasionally our networks provide service between on-net buildings in two different small or mid-sized markets located onvarious parts of our regional networks (for example, between Sioux Falls, South Dakota5 Table of Contentsand Alexandria, Minnesota). We seek to continue to add new segments and markets to our regional and long-haul networks on asuccess basis, supported by a customer contract. We have deployed current generation DWDM technologies across the majorityof our regional and long-haul networks, allowing a current maximum scaling to four terabytes (i.e. 4,000G) of bandwidth and theability to add capacity as demand for bandwidth increases. We expect that as technology continues to advance, we will augmentand invest in our regional and long-haul networks accordingly.Fiber-to-the-Tower Networks . We operate fiber-to-the-tower networks across our fiber network footprint. We connect toapproximately 6,000 cellular towers and have contracts with multiple national wireless carriers to build out to approximately2,600 additional towers. These FTT networks provide our customers with bandwidth infrastructure services that offersignificantly improved speed, scale, performance and service levels relative to legacy copper and microwave networks. Our FTTnetworks are scalable, which means that we can quickly and easily increase the amount of bandwidth that we provide to each ofthe towers as our customers’ wireless data networks grow. Our FTT markets are generally in areas where we already have densefiber networks (either metro or regional), which affords us the ability to offer ring-protected mobile infrastructure services. Weare increasingly providing dark fiber services on our FTT networks.Through these fiber networks, we provide service to approximately 24,000 on-net buildings and are continually makingsuccess-based capital investments to increase our on-net building footprint. On-net buildings are buildings that are directlyconnected via fiber to our long-haul, regional, metro, and FTT networks. Our customers generally purchase our bandwidthinfrastructure services to transport their data, Internet, wireless and voice traffic between buildings directly connected to ournetwork. The types of buildings connected to our network primarily consist of the following:·Data Centers, Carrier Hotels and Central Offices. These buildings house multiple consumers of bandwidthinfrastructure services, serving as telecommunications and content exchange points. Our fiber networks generallyconnect the most important of these buildings in the markets where we operate. We have over 1,700 of these typesof facilities connected to our network.·Single-Tenant, High-Bandwidth Locations. Generally these are other telecom, media or Internet content buildingsthat house a single large consumer of bandwidth infrastructure services. Examples of these buildings include videoaggregation sites, mobile switching centers and carrier POPs. Our network is connected to these buildings onlywhen the tenant is a customer. We currently have over 2,600 single-tenant, high-bandwidth locations on-net.·Cellular Towers. We connect to cellular towers and other locations that house wireless antennas. We haveapproximately 6,000 cellular towers on-net, and we are actively constructing fiber to over an additional 2,600towers. Typically, towers have multiple tenants, which provides us with the opportunity to sell services to thoseadditional tenants.·Enterprise Buildings. Our network extends to over 15,300 enterprise buildings. This grouping contains a mix ofsingle-tenant and multi-tenant enterprise buildings and includes hospitals, corporate data centers, schools,government buildings, research centers and other key corporate locations that require bandwidth infrastructureservices.Our Data CentersMany of our data center facilities are located in some of the most important carrier hotels in the United States, including 60Hudson Street and 111 8th Avenue in New York; 165 Halsey Street in Newark; 401 N. Broad Street in Philadelphia; 1 SummerStreet in Boston; 1950 N. Stemmons Freeway and 2323 Bryan Street in Dallas; and 2001 6th Street in Seattle. Our data centerfacilities also have the exclusive right to operate and provide colocation and interconnection services in the Meet-Me Room at 60Hudson Street. We also have colocation facilities located in Atlanta, Ashburn, Austin, Baltimore, Chicago, Cincinnati, Cleveland,Columbus, Denver, Las Vegas, Los Angeles, Memphis, Miami, Nashville, Phoenix, Pittsburgh, Minneapolis, Washington, D.C.and nine additional locations in France. All of our facilities are network-neutral, and have ample power to meet customer needs,backup power in the form of batteries and generators, air conditioning, modern fire suppression equipment, 24/7 security andequipment monitoring, and redundant cooling capabilities. We have long-term leases with the owners of each of the buildingswhere6 Table of Contentswe provide colocation services. Our colocation facilities total approximately 670,000 square feet of billable colocation space.Underlying RightsWe have the necessary right-of-way agreements and other required rights, including state and federal governmentauthorization, to allow us to maintain and expand our fiber networks that are located on private property and public rights-of-way,including utility poles. When we expand our network, we obtain the necessary construction permits, license agreements, permitsand franchise agreements. Certain of these permits, licenses and franchises are for a limited duration. When we need to useprivate property, our strategy is to obtain rights-of-way under long-term contracts.Our Segments and ServicesWe provide three major types of products and services, which form the basis for three of our five operating segments: DarkFiber Solutions, Network Connectivity and Colocation and Cloud Infrastructure. Our Zayo Canada segment is comprised of theCompany’s recently acquired Allstream business and our Other segment includes Zayo Professional Services (“ZPS”), ourprofessional services business that provides network and technical resources to our customers. Across our segments, we operateindividual Strategic Product Groups. Each Strategic Product Group has financial accountability and decision-making authority,which promotes agility in the fast-moving markets we serve. Financial information for each of our operating segments and ourdomestic and foreign operations is contained in Note 16 – Segment Reporting to our consolidated financial statements.·Dark Fiber Solutions . Through the Dark Fiber Solutions segment, we provide raw bandwidth infrastructure tocustomers that require more control of their internal networks. These services include dark fiber and mobileinfrastructure (fiber-to-the-tower and small cell). Dark fiber is a physically separate and secure, private platform fordedicated bandwidth. We lease dark fiber pairs (usually 2 to 12 total fibers) to our customers, who “light” the fiberusing their own optronics. Our mobile infrastructure services provide direct fiber connections to cell towers, smallcells, hub sites, and mobile switching centers. Dark Fiber Solutions customers include carriers and othercommunication service providers, Internet service providers, wireless service providers, major media and contentcompanies, large enterprises, and other companies that have the expertise to run their own fiber optic networks orrequire interconnected technical space. The contract terms in the Dark Fiber Solutions segment tend to range fromthree to twenty years. Strategic Product Groups within the Dark Fiber Solutions segment include:oZayo Dark Fiber. Through our Dark Fiber Strategic Product Group, we provide dark fiber and relatedservices on portions of our existing fiber network and/or newly constructed network segments. We providedark fiber pairs to our customers, who then light the fiber using their own optronic equipment, allowing thecustomer to manage bandwidth according to their specific business needs. As part of our service offering,we manage and maintain the underlying fiber network for the customer. Other related services may includethe installation and maintenance of building entrance fiber or riser fiber for distribution within a building.Customers include carriers and other communication service providers, ISPs, wireless service providers,major media and content companies, large enterprises, large school districts, government institutions, andother entities that have the expertise to operate their own optronics. We market and sell dark fiber-relatedservices under long-term contracts, typically provided for terms between five and twenty years in length.Customers generally pay on a monthly basis for the fiber; however, some customers pay upfront (generallyreferred to as an IRU). Fiber maintenance (or O&M) services are generally billed on an annual or monthlyrecurring basis regardless of the timing of the payment for the fiber lease. Recurring payments are fixed,but often include automatic annual price escalators intended to compensate us for inflation.oZayo Mobile Infrastructure (“MIG”). Our MIG Strategic Product Group provides two key services: FTTand small cell infrastructure. MIG customers are wireless carriers. Our FTT product consists of fiber-basedbackhaul from cellular towers to mobile switching centers. This service is generally provided via anEthernet (in speeds of 50 Mb and above) or dark fiber service, and is used by wireless service providers toenable 3G and 4G mobile voice and data services to their7 Table of Contentscustomers. As of June 30, 2016, we had approximately 6,000 cellular towers on-net, and we are activelyconstructing fiber to over an additional 2,600. Typically, towers have multiple tenants, which provides uswith the opportunity to sell services to those additional tenants. MIG’s small cell infrastructure servicesprovide two separate sub-services. The first sub-service is neutral space and power at a small cell location(example: a light pole), similar to a tower provider. Wireless services providers purchase this service tohave a physical location on which to mount their small cell antennas. The second sub-service is dark fiberbackhaul from the antenna location to a mobile switching center or interim aggregation point (often atower). Services are typically provided for terms between five and twenty years for a fixed recurringmonthly fee and, in most cases, an additional upfront, non-recurring fee. Pricing is a function of thequantity of dark fiber or bandwidth consumed and the number of locations served.·Network Connectivity . The Network Connectivity segment provides bandwidth infrastructure solutions over ourmetro, regional, and long-haul fiber networks where it uses optronics to light the fiber and our customers pay foraccess based on the amount and type of bandwidth they purchase. Our services within this segment includewavelength, Ethernet, IP and SONET. We target customers who require a minimum of 10G of bandwidth acrosstheir networks. Network Connectivity customers include carriers, financial services companies, healthcare,government institutions, education institutions and other enterprises. The contract terms in this segment tend torange from two to five years. Strategic Product Groups within the Network Connectivity segment include:oZayo Wavelength Services. Through our Wavelength Services Strategic Product Group, we provide litbandwidth infrastructure services to customers by using optical wavelength technology. The service isprovided by using DWDM optronic equipment to “multiplex” multiple channels (i.e., wavelengths) ofdedicated capacity on a single fiber pair. The wavelength group provides its services in speeds of 1G, 2.5G,10G, 40G, and 100G. Customers include carriers, financial services companies, healthcare, governmentinstitutions, education institutions and other enterprises. Services are typically provided for terms betweenone and five years for a fixed recurring monthly fee and in some cases an additional upfront, non-recurringfee.oZayo Ethernet Services . Our Ethernet Services Strategic Product Group provides lit bandwidthinfrastructure services to its customers utilizing Ethernet technology. Ethernet services are offered in metromarkets as well as between metro areas (intercity) in point-to-point and multi-point configurations. Unlikedata transmission over a dedicated wavelength network, information transmitted over Ethernet istransferred in a packet or frame across the network. The frame enables the data to navigate across a sharedinfrastructure in order to reach the customer required destination. Services are provided in speeds rangingfrom 10Mb to 10G. Customers include carriers, financial services companies, healthcare, governmentinstitutions, education institutions and other enterprises. Services are typically provided for terms betweenone and five years for a fixed recurring monthly fee and in some cases an additional upfront, non-recurringfee.oZayo Internet Protocol Services. The Internet Protocol Services Strategic Product Group provides litbandwidth infrastructure services to its customers utilizing Internet Protocol technology. IP technologytransports data across multiple circuits over a shared infrastructure from the customer source to thecustomer required destination. Information leaving the source is divided into multiple packets and eachpacket traverses the network utilizing the most efficient path and means available, as determined by anetwork of IP routers. Packets of information may travel across different physical circuits or paths in orderto reach the destination, at which point the packets are reassembled to form the complete communication.Services are generally used to exchange or access traffic on the public Internet. Services are provided inspeeds ranging from 10Mb to 100G on a single customer port interface. Customers include regionaltelecommunications and cable carriers, ISPs, enterprises, educational institutions and content companies.Services are typically provided for terms between one and three years for a fixed recurring monthly fee andin some cases a usage-based and/or an additional upfront, non-recurring fee. Pricing is generally a functionof bandwidth capacity and transport required to carry traffic from the customer location to a public Internetexchange.8 Table of ContentsoZayo SONET Services. Our SONET Services Strategic Product Group provides lit bandwidthinfrastructure services to its customers utilizing SONET technology. SONET is a standardized protocolthat transfers multiple digital bit streams over optical fiber using lasers. SONET technology is often used tosupport private line services. This protocol enables transmission of voice, data and video at high speeds.SONET networks are protected, which provides for virtually instantaneous restoration of service in theevent of a fiber cut or equipment failure. Services are provided in speeds ranging from DS-1 (1.54Mb) toOC-192 (10G) of capacity. Customers in this group are largely carriers. Services are typically provided forterms between one and five years for a fixed recurring monthly fee and in some cases an additionalupfront, non-recurring fee. SONET is generally a more legacy product that is gradually being replaced byEthernet, wavelength and dark fiber services. As a result, the SONET Services Strategic Product Groupgenerally manages its business to maximize cash generation and deploys minimal growth capital.·Colocation and Cloud Infrastructure . The Colocation and Cloud Infrastructure segment provides data centerinfrastructure solutions to a broad range of enterprise, carrier, content and cloud customers. The Company’s serviceswithin this segment include colocation, interconnection, cloud, hosting and managed services, such as security andremote hands offerings. Solutions range in size from single cabinet and server support to comprehensiveinternational outsourced IT infrastructure environments. The Company’s data centers also support a largecomponent of the Company’s networking equipment for the purpose of aggregating and distributing data, voice,Internet, and video traffic. The contract terms in this segment tend to range from two to five years. Strategic ProductGroups within the Colocation and Cloud Infrastructure segment include:oZayo Colocation (“zColo”). Through our zColo Strategic Product Group, we provide network-neutralcolocation and interconnection services in 61 data center facilities across 42 markets throughout the UnitedStates and France. zColo manages approximately 670,000 square feet of billable colocation space withinthese facilities. All of our facilities provide 24 hour per day, 365 days per year management andmonitoring with physical security, fire suppression, power distribution, backup power, cooling andmultiple redundant fiber connections to multiple network providers. The components of our networkneutral colocation offering are: space, power, interconnection and remote technical services. We sell spacein half-racks, racks, cabinets, cages, and private suites. We provide alternating current (“AC”) and directcurrent (“DC”) power at various levels. Our power product is supported by battery and generator back-upsources. As a network-neutral provider of colocation services, we provide our customers withinterconnection services allowing customers to connect and deliver bandwidth between separate networksusing fiber, Ethernet, and SONET services. We believe our interconnection offering is differentiated by ourinter-building dark fiber infrastructure, allowing connectivity between and among multiple suites in majorU.S. data centers, and our Metro Interconnect product, which allows customers to interconnect to otherimportant traffic exchange buildings within a metro market. We also offer data center customersoutsourced technical resources through our “remote hands” product. Customers can vary by facility andinclude: domestic and foreign carriers, ISPs, cloud services providers, on-line gaming companies, contentproviders, media companies and other data-centric enterprises. Services are typically provided for termsbetween one and five years for a recurring monthly fee and, in many cases, an additional upfront, non-recurring fee. zColo is the exclusive operator of the Meet-Me Room at 60 Hudson Street in New York,which is one of the most critical carrier hotels in the world.oZayo Cloud Services. The Zayo Cloud Services Strategic Product Group combines private cloud, publiccloud and managed services in order to provide its customers infrastructure as a service (IaaS) whichenables on-demand scaling and virtual computing in hybrid environments. ·Zayo Canada . The Zayo Canada segment is comprised of the recently acquired business of Allstream, Inc. andAllstream Fiber U.S. Inc. (together, “Allstream”). The services provided by this segment include the legacy darkfiber, network connectivity, cloud and colocation infrastructure, voice, unified communications, managed securityservices and small and medium businesses (“SMB”) of Allstream. Voice provides a full range of local voiceservices allowing business customers to complete9 Table of Contentstelephone calls in their local exchange, as well as make long distance, toll-free and related calls. Unified communications is theintegration of real-time communication services such as telephony (including IP telephony), instant messaging and videoconferencing with non-real-time communication services such as integrated voicemail and e-mail. Unified communicationsprovides a set of products that give users the ability to work and communicate across multiple devices, media types andgeographies. Managed security services provide proactive services and solutions designed to enable organizations to operate in anenvironment of constantly evolving threats from organized cyber-crime. The service provides real-time threat analysis andcorrelation of information security threats, response and mitigations services, secure access to the internet and the cloud,information risk and compliance services, and management of the IT security envelope. Zayo Canada provides services to over26,000 customers in the SMB market while leveraging its extensive network and product offerings. These include IP, internet,voice, IP trunking, cloud private branch exchange, collaboration services and unified communications.·Other. Our Other segment is primarily comprised of ZPS. Through our professional services ZPS StrategicProduct Group, we provide network and technical resources to customers who wish to leverage our expertise indesigning, acquiring, and maintaining networks. Services are typically provided for a term of one year for a fixedrecurring monthly fee in the case of network and on an hourly basis for technical resources (usage revenue).During Fiscal 2016, we changed our reportable segments. Previously, our operating segments were reported as PhysicalInfrastructure, which included our Dark Fiber, MIG and Zayo Colocation (“zColo”) Strategic Product Groups (“SPGs”), Cloudand Connectivity, which included our Waves, Sonet, Ethernet, IP and Cloud SPGs, and Other, which primarily includedZPS. The new structure has removed the zColo and Cloud SPGs out of the Physical Infrastructure and Cloud and Connectivityreporting segments, respectively, creating a new reportable segment called Colocation and Cloud Infrastructure. The Dark Fiberand MIG SPGs are now reported in the Dark Fiber Solutions operating segment, and the Ethernet, IP, Waves, and SONET SPGsare now reported in the Network Connectivity operating segment. In addition, following the acquisition of Allstream, theCompany created a fifth reportable segment, the Zayo Canada segment, to include the legacy products and service offerings ofthat recently acquired entity. All prior period segment level financial and operating metrics included in this Annual Report havebeen recast to conform to the current period presentation for comparability.Our OperationsNetwork Management and OperationsOur primary network operating center (“NOC”) is located in Tulsa, Oklahoma and provides 24 hour per day, 365 days peryear monitoring and network surveillance. As part of our business continuity plan, our primary NOC is backed up by severalregional operations centers located in Washington, D.C.; Allentown, Pennsylvania; and Butte, Montana. We continually monitorfor, and proactively respond to, any events that negatively impact or interrupt the services that we provide to our customers. OurNOC also responds to customer network inquiries via standard customer trouble ticket procedures. Our NOC coordinates andnotifies our customers of maintenance activities and is the organization responsible for ensuring that we meet our service levelagreements.Information TechnologyOur Information Technology systems have been designed and built specifically for the needs of a focused bandwidthinfrastructure provider primarily leveraging the salesforce.com platform. This platform was adopted at our inception and has beenenhanced over time to integrate all of our acquired companies and increase functionality in every area.Our current systems’ capability is mature, and we view our application functionality as a competitive advantage in ourindustry. Our system is differentiated from the typical telecom industry technology solution consisting of separate and looselyintegrated sales force automation, customer relationship management, provisioning, mapping, inventory, financial, provisioningand other systems with multiple, sometimes conflicting databases.10 Table of ContentsWe have also developed within our salesforce.com platform a proprietary capability we call Tranzact. Tranzact is a set oftools and processes designed to enhance the speed and simplicity of procuring bandwidth infrastructure services. We believeTranzact will further increase our competitive advantage in delivering bandwidth infrastructure solutions.We have a fully implemented business continuity and disaster recovery plan that provides near real-time data access fromphysically diverse data centers (Dallas and Washington, D.C.). We further protect our data with off-site data storage practices.Our Sales and Marketing OrganizationOur business primarily engages in direct sales through our sales organization, consisting of 175 sales representatives as ofJune 30, 2016. Each of these sales representatives is part of an enterprise or carrier focused sales team led by a sales directorwhose team is responsible for meeting a quarterly bookings quota. The sales organization sells services across all our StrategicProduct Groups. The sales representatives are directly supported by sales management, engineering, solutions engineering andmarketing staff.The sales organization is organized into direct sales channels that generally align around both region and customer. Each ofthese channels maintains dedicated sales and solutions engineering support resources. There are four direct sales channels in theUnited States who are geographically focused supporting regional carriers and medium to large enterprise customers, particularlyin the healthcare, education, internet content, media and financial sectors. Within those channels there are dedicated teamsfocused on our national wireline and wireless customers across all geographies. Within Europe and Canada, there are directoutside sales channels focused on similar European and Canadian customers.In addition to the direct channels discussed above, an indirect sales channel manages our channel partner program withvarious high value telecom sales agents. Finally, we have developed a group of sales overlay teams to focus on leveraging ourinfrastructure assets for the benefit of specific industry verticals and geographies.Our direct sales force is compensated through a unique system relative to typical industry practices. Sales staff arecompensated through salary and incentive compensation, which is comprised of cash and equity. Incentive compensation isachieved based upon the net present value (“NPV”) of the contracted services sold, the incremental revenue related to contractedservices sold and the effective management of churn related to the accounts they manage. We believe that this compensationsystem best aligns the interests of our salespeople, management and our stockholders. It also is an example of the financialphilosophy and culture that we have developed since our inception.Separate from the sales groups, we have a corporate marketing group that is responsible for our web presence, customerfacing mapping tools, marketing campaigns, and public relations. The sales organization is further supported by productmanagement teams that are organized into the Strategic Product Groups.Our CustomersOur customers generally have a significant and growing need for the bandwidth infrastructure services that we provide. Ourcustomer base consists of wireless service providers, carriers and other communication service providers, media and contentcompanies (including cable and satellite video providers), and other bandwidth-intensive businesses in the education, healthcare,financial services, governmental and technology entities. Our largest single customer, based on recurring revenue, accounted forapproximately 6% of our revenue during the year ended June 30, 2016, and total revenues from our top ten customers accountedfor approximately 26% of our revenue during the same period. These customers are multinational organizations with substantialliquidity and access to capital, and whose bandwidth needs are mission-critical to their own businesses and strategies. While theselarge customers generally have a finite set of master contracts with us, they procure a large volume of individual services with us,each of which has its own service detail and term.The majority of our customers sign Master Service Agreements (“MSAs”) that contain standard terms and conditionsincluding service level agreements, required response intervals, indemnification, default, force majeure, assignment andnotification, limitation of liability, confidentiality and other key terms and conditions. Most MSAs also contain appendices thatcontain information that is specific to each of the services that we provide. The MSAs either have exhibits that contain serviceorders or, alternatively, terms for services ordered are set forth in a separate service order. Each service order sets forth theminimum contract duration, the monthly recurring charge, and the non-recurring charges.11 Table of ContentsOur Business StrategyIn pursuit of our mission, our Business Strategy includes the following key elements:·Focus on Bandwidth Infrastructure. We expect that bandwidth needs for mobile applications, cloud-basedcomputing, and machine-to-machine connectivity will continue to grow with the continued adoption of bandwidth-intensive devices, as well as the escalating demand for Internet-delivered video. We focus on providing high-bandwidth infrastructure solutions, which we believe are essential in the consumption and delivery of bandwidth-intensive applications and services by enterprise customers and communications service providers. We believe ourdisciplined approach to providing these critical services to our targeted customers enables us to offer a high levelof customer service, while at the same time being responsive to changes in the marketplace.·Target Large Consumers of Bandwidth . Our asset base and product suite are geared for large consumers ofbandwidth with high connectivity requirements. The majority of our customers require more than 10G ofbandwidth; many of our customers require multiple terabytes of bandwidth. Our revenue base is generallycharacterized by customers with a high bandwidth spend, consisting of a large number of individual services andincreasing bandwidth infrastructure service demand. Tailoring our operations around these products, services andcustomers allows us to operate efficiently and meet these large consumers’ requirements for mission-criticalinfrastructure.·Leverage Our Extensive Asset Base by Selling Services on Our Network . Targeting our sales efforts to servicesthat utilize our existing fiber networks and data centers enables us to limit our reliance on third-party serviceproviders. We believe this in turn produces high incremental margins, which helps us expand consolidatedmargins, achieve attractive returns on the capital we invest, and realize significant levered free cash flow. We alsobelieve this enables us to provide our customers with a superior level of customer service due to the relative easein responding to customer service inquiries over one contiguous fiber network. Our existing networks enable us tosell additional bandwidth to our existing customers as their capacity needs grow.·Continue to Expand Our Infrastructure Assets. Our ability to rapidly add network capacity to meet the growingrequirements of our customers is an important component of our value proposition. We will continue to seekopportunities to expand our network footprint where supporting customer contracts provide an attractive return onour investment. The expansion of our network footprint also provides the ancillary benefit of bringing otherpotential customer locations within reach. We design our networks with additional capacity so that increasingbandwidth capacity can be deployed economically and efficiently. Capital expenditures are primarily success-based.·Leverage Our Existing Relationships and Assets to Innovate. We believe we possess a unique set of assets andmanagement systems designed to deliver customer solutions tailored to specific trends we observe in themarketplace. Our high-energy, entrepreneurial culture fosters employee innovation on an ongoing basis inresponse to specific customer requirements. Furthermore, we plan to continue to commit capital to new lines ofinfrastructure businesses that leverage our existing assets. For example, we are expanding into small cellinfrastructure services provided to wireless services providers. These services entail us providing dark fiber andrelated services from a small cell location back to a mobile switching center. We provide the fiber-based transportover our existing and/or newly constructed fiber networks. In addition, we provide network-neutral space andpower for wireless service providers to co-locate their small cell antennas and ancillary equipment.·Intelligently Expand Through Acquisitions. We have made 38 acquisitions to date for an aggregate purchaseprice, net of cash, of $5.0 billion. We believe we have consistently demonstrated an ability to acquire andeffectively integrate companies, realize cost synergies, and organically grow revenue post-acquisition.Acquisitions have the ability to increase the scale of our operations, which in turn affords us the ability to expandour operating leverage, extend our network reach, and broaden our customer base. We believe our ability torealize significant cost synergies through acquisitions provides us with a competitive advantage in futureconsolidation opportunities within our industry. We will continue to evaluate potential acquisition opportunitiesand are regularly involved in acquisition discussions. We will evaluate these opportunities based on a number ofcriteria, including expected return on capital, the12 Table of Contentsquality of the infrastructure assets, the fit within our existing businesses, the opportunity to expand our network, and theopportunity to create value through the realization of cost synergies.Our Competitive StrengthsWe believe the following are among our core competitive strengths and enable us to differentiate ourselves in the marketswe serve:·Unique Bandwidth Infrastructure Assets. We believe replicating our extensive metro, regional, and long-haulfiber assets would be difficult given the significant capital, time, permitting, and expertise required. Our fiberspans over 112,600 route miles and 8,700,000 fiber miles (representing an average of 78 fibers per route), served365 geographic markets in the United States, Canada and Europe, and connect to approximately 24,000 buildings.The majority of the markets that we serve and buildings to which we connect have few other networks capable ofproviding similar high-bandwidth infrastructure and connectivity solutions, which we believe provides us with asustainable competitive advantage in these markets, and positions us as a mission-critical infrastructure supplier tothe largest users of bandwidth. We believe that the vast majority of customers using our network, including our litbandwidth, fiber-to-the-tower, and dark fiber customers, choose our services due to the quality and reach of ournetwork, and the ability our network gives us to innovate and scale with their growing bandwidth needs.Additionally, we operate 61 data center facilities, which are located in eleven of the most important carrier hotelsin the U.S., Canada and France. This collective presence, combined with our high network density, creates anetwork effect that helps us retain existing customers and attract new customers. From July 1, 2013 through June30, 2016, exclusive of acquisitions, we have invested approximately $1.6 billion of capital in our networks,including expansion and maintenance expenditures.·Strong Revenue Growth, Visibility, and Durability. We have consistently grown our organic revenue, as grossinstalled revenue has exceeded churn processed in every quarter since we began reporting in March 2010. Webelieve our exposure to the enduring trend of increasing bandwidth consumption combined with our focusedexecution have allowed us to achieve this consistent growth. We typically provide our bandwidth infrastructureservices for a fixed monthly recurring fee under multi-year contracts. Our contract terms range from one year totwenty years. Our customers use our bandwidth infrastructure to support their mission-critical networks andapplications. The switching costs and effort required to replace our services can be high, particularly for theservices within our Dark Fiber Solutions and Network Connectivity segments, given the criticality of our servicesand the potential cost and disruption. We believe that increasing bandwidth needs combined with the mission-critical nature of our services provided under multi-year contracts create strong revenue growth, visibility, anddurability, which support our decision-making abilities and financial stability. We believe that our industry’s highbarriers to entry, our economies of scale and scope and customer switching costs contribute to our strong financialperformance.·Customer Service and Ability to Innovate for Our Customers . Our sales and product professionals work closelywith potential and existing customers to design tailored high-bandwidth connectivity solutions across our StrategicProduct Groups to meet specific, varying, and evolving customer needs. We are focused on delivering high-quality, reliable service to our customers. We achieve this by leveraging our contiguous network to expand withour customers as they seek to build scale, coverage, and/or performance. Additionally, our focus on serving thelargest and most sophisticated users of bandwidth keeps our sales, engineering, and service organizations attunedto the latest technologies, architectures, and solutions that our customers may seek to implement. We believe ourwillingness to innovate for our customers and our dedication to customer service help establish our position as animportant infrastructure supplier and allow us to attract new customers and businesses, sell an increasing amountof services to our existing customers, and reduce customer turnover.·Strategic, Operational and Financial Transparency Excellence. As part of our strategy to serve the largest usersof bandwidth, we have completed and integrated 38 acquisitions to date. Our acquired assets have been combinedto create a contiguous network with the ability to provision and maintain local, regional, national, or internationalhigh-bandwidth connections across our Strategic Product Groups. Our13 Table of Contentsentire network, sales and churn activity, installation pipeline, NPV commission plans, and all customer contracts are managedthrough an integrated operating and reporting platform, which gives management strong visibility into the business and improvesour ability to drive return-maximizing decisions throughout the organization. Our focus on operational and financial transparencynot only allows us to be very nimble in attacking various market opportunities, but also provides us the ability to deliverdisclosure that our stockholders and other stakeholders can use to accurately judge management’s performance from a capitalallocation, financial, and operational perspective.·Financially Focused and Entrepreneurial Culture. Virtually all operational and financial decisions we make aredriven by the standard of maximizing the value of our enterprise. Our sales commission plans use an NPV-basedapproach with the goal of encouraging the proper behavior within our sales force, and our Strategic ProductGroups are held to group level equity internal rate of return (“IRR”) targets set by management. To alignindividual behaviors with stockholder objectives, equity compensation is used throughout the Company, and ourcompensation plans include a larger equity component than we believe is standard in our industry. In addition tostriving for industry-leading operational and growth outcomes to drive value creation, we are prepared to use debtcapacity to enhance stockholder returns, but not at the expense of other stakeholders and only at levels we believeare in the long-term interests of the Company, our customers, and our stockholders. Finally, our owners’ manual,mission, and investor transparency all serve to enhance cultural alignment across the Company and ourstockholders.·Experienced Management with Unique Leadership Approach. We have assembled an experienced managementteam that we believe is well-qualified to lead our Company and execute our strategy. Our management team hassubstantial industry experience in managing and designing fiber networks and network-neutral colocation andinterconnection facilities and in selling and marketing bandwidth infrastructure services. In addition, ourmanagement team has significant experience in acquiring and integrating bandwidth infrastructure and assets. Ourmanagement team is a cohesive unit with a common history that in many cases precedes the Company’s founding.We also believe that our approach to leadership - operationally, financially, culturally - is unique in our industryand differentiates us from our competitors.Our CompetitionDark Fiber Solutions ServicesGiven the requirement to own the underlying bandwidth infrastructure assets (e.g., fiber networks) in order to provide darkfiber solutions services, the competitive environment tends to be less intensive for these products and the barriers to entry high.The degree of competition and parties in competition vary by physical infrastructure sub-service and by individual market andfiber route. The competitive situation by service is described as follows:Dark Fiber . Competition in dark fiber services tends to be less intense than for lit bandwidth infrastructure servicesprimarily because a provider must predominantly own and operate a high count fiber network covering a substantial portion of thegeographical demand in order to compete for a customer’s business. The uniqueness, density and depth (i.e., high fiber count) ofour metro, regional, and long-haul fiber networks is therefore a key differentiating factor. In addition, given that providing darkfiber services often includes some degree of network expansion, dark fiber providers must also have internal project managementexpertise and access to capital to execute on the expansion aspect of the business. Due to the custom nature of most dark fiberopportunities, many larger lit bandwidth infrastructure providers do not actively market dark fiber as a product, even if they ownfiber networks in the desired geographies. As a result, competition is often more limited in the dark fiber services market andhighly dependent on the local (even sub-market) supply and demand environment. Given this dynamic and the generally longercontractual term of dark fiber services, dark fiber pricing tends to be more inflationary in nature.Specific dark fiber competitors vary significantly based on geography, and often a particular solution can be provided byonly one to three carriers that have sufficient fiber in place in the desired area or route. These competitors tend to fall into twocategories: first, privately owned regional bandwidth infrastructure providers with a similar degree of focus (e.g., Lightower andSunesys) and second, single market dark fiber providers with market and fiber construction expertise (e.g., DQE Communicationsand Edison Carrier Solutions).14 Table of ContentsMobile Infrastructure. Competition in mobile infrastructure services tends to mirror dark fiber services because of theneed to own and operate an expansive and deep metro fiber network in order to compete. Given the frequent need to expand uponan existing fiber footprint in order to access additional cell towers and small cell locations, project management expertise andaccess to capital is also a key competitive factor. One additional criterion is that wireless carriers prefer to work with a more finitegroup of mobile infrastructure providers on either a metro or regional geographic basis. As a result, the competitive group tends tomatch that of dark fiber services, with the addition of two competitive groups. First, local cable providers and ILECs who willoften break from their retail and small enterprise core focus to compete for FTT business, often as a result of legacy copper orcoaxial-based services provided to these towers. Second, microwave backhaul providers who focus on more remote or ruraltowers that have lesser bandwidth needs that they can serve with less capital-intensive (and less bandwidth-capable) microwavesolutions at a lower total cost. Examples of these additional mobile infrastructure competitors are Comcast, Time Warner Cable,CenturyLink, PEG Bandwidth, Conterra and TTMI.Network Connectivity We believe that some of the key factors that influence our customers’ selection of us as their network connectivity servicesprovider are our ability to provide an on-net service that utilizes our fiber network on an end-to-end basis, the ability to morequickly implement a complex custom solution to meet customers’ needs, the price of the service provided, and the ongoingcustomer service provided.Generally, price competition varies depending on the size and location of the market. We face direct price competitionwhen there are other fiber-based carriers who have networks that serve the same customers and geographies that we do. Thespecific competitors vary significantly based on geography, and often a particular solution can be provided by only one to threecarriers that have comparable fiber in place. Typically, these competitors are large, well-capitalized ILECs, such as AT&T Inc.,CenturyLink, Inc., and Verizon Communications Inc., or are publicly traded communications service providers that providebandwidth infrastructure, such as Level 3 Communications, Inc. or Cogent Communications. In certain geographies, privately-held companies such as Lightower and Southern Light, can also offer comparable fiber-based solutions. On occasion, the pricefor high-bandwidth infrastructure services is too high compared with the cost of lower-speed, copper-based telecom services. Webelieve that price competition will continue where our competitors have comparable existing fiber networks. Some of ourcompetitors have long-standing customer relationships, very large enterprise values, and significant access to capital.Colocation and Cloud InfrastructureThe market for our colocation and interconnection services is very competitive. We compete based on price, quality ofservice, network-neutrality, breadth of network connectivity options, type and quantity of customers in our data centers, andlocation. We compete against both large, public colocation providers who have significant enterprise values, and privately-held,well-funded colocation providers. Some of our competitors have longer-standing customer relationships and significantly greateraccess to capital, which may enable them to materially increase data center space, and therefore lower overall market pricing forsuch services. Several of our competitors have much larger colocation facilities in the markets where we operate. Others operateglobally and are able to attract a customer base that values and requires global reach and scale.These focused interconnection and colocation service providers include: Equinix, Inc., The Telx Group, Inc., TerremarkWorldwide, Inc. (a Verizon Communications, Inc. subsidiary), Coresite, Savvis, Inc. (a CenturyLink, Inc. subsidiary), andCologix. These companies offer similar services and operate in similar markets to us.15 Table of ContentsZayo CanadaZayo Canada serves business customers throughout Canada. This market is competitive, with both revenues and margins forsome of the services we offer declining across the industry. Our largest competitors are the incumbent telecommunicationscompanies Bell and TELUS. We also compete with other telecommunications companies, such as established cable and hydrocompanies, and smaller companies or re-sellers that have a more limited network. Few non-incumbent telecommunicationscompanies serving business customers have been successful in generating a sustained record of profitability and takingmeaningful market share from the incumbent carriers. Our current strategy aims to mitigate this by focusing on servicessupporting reliable high bandwidth solutions. Consumer grade products are generally not suitable substitutes for business servicesfor the customer set that Zayo Canada targets. The incumbent carriers act aggressively to maintain their existing and substantialcustomer base in the mid, large and wholesale markets. Customers expect decreasing per unit pricing over time with and withoutincreasing unit demand.OtherWe do not own any significant intellectual property, nor do we spend a material amount on research and development. Ourworking capital requirements and expansion needs have been satisfied to date through equity contributions, debt issuances,proceeds from our initial public offering (“IPO”) and follow on equity offering in March 2015, and cash provided by operatingactivities.Regulatory MattersOur operations require that certain of our subsidiaries hold licenses, certificates, and/or other regulatory authorizations fromthe Federal Communications Commission (“FCC”), state Public Utilities Commissions (“PUCs”), European and Canadiantelecommunications regulators (such as, Ofcom and ARCEP in Europe and CRTC in Canada) and other foreign regulators, all ofwhich we have obtained and maintain in the normal course of our business. The FCC, State PUCs and foreign regulatorsgenerally have the power to modify or terminate a carrier’s authority to provide regulated wireline services for failure to complywith certain federal, state and foreign laws and regulations, and may impose fines or other penalties for violations of the same.The State PUCs typically have similar powers with respect to the intrastate services that we provide under their jurisdiction. Inaddition, we are required to submit periodic reports to the FCC, State PUCs, and foreign regulators documenting interstate,intrastate and foreign revenue, among other data, for fee assessments and general regulatory governance, and in some states arerequired to file tariffs of our rates, terms, and conditions of service. In order to engage in certain transactions in thesejurisdictions, including changes of control, the encumbrance of certain assets, the issuance of securities, the incurrence ofindebtedness, the guarantee of indebtedness of other entities, including subsidiaries of ours, and the transfer of our assets, we arerequired to provide notice and/or obtain prior approval from certain of these governmental agencies. The construction of additionsto our current fiber network is also subject to certain governmental permitting and licensing requirements.In addition, our business is subject to various other regulations at the federal, state, local and international levels. Theseregulations affect the way we can conduct our business and our costs of doing so. However, we believe, based on our examinationof such existing and potential new regulations being considered in ongoing FCC and State PUC and European, Canadian andother foreign telecommunications proceedings, that such regulations will not have a significant impact on us.Website Access and Important Investor InformationWe file periodic reports, proxy statements, and other information with the Securities and Exchange Commission (the“SEC”). The public may read or copy any materials we file with, or furnish to, the SEC at the SEC’s Public Reference Room at100 F Street, NE, Washington, DC 20549. The public may obtain information on the operation of the Public Reference Room bycalling the SEC at 1-800-SEC-0330. The SEC maintains an Internet site (http://www.sec.gov) that contains reports, proxy andinformation statements, and other information regarding issuers that file electronically with the SEC.Our website address is www.zayo.com, and we routinely post important investor information in the “Investors” section ofour website at http://investors.zayo.com / . The information contained on, or that may be accessed through, our16 Table of Contentswebsite is not part of this Annual Report on Form 10-K (this “Annual Report”). You may obtain free electronic copies of ourannual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and all amendments to those reportsin the “Investors” section of our website under the heading “SEC Filings”. These reports are made available on our website assoon as reasonably practicable after we electronically file them with the SEC.We have adopted a written code of ethics applicable to our directors, officers and employees, including our principalexecutive officer and principal financial and accounting officers (or persons performing similar functions), in accordance withSection 406 of the Sarbanes-Oxley Act of 2002 and the rules of the SEC. In the event that we make any changes to, or provideany waivers from, the provisions of our code of ethics applicable to our executive officers and directors, we intend to disclosethese events on our website or in a report on Form 8-K within four business days of such event. This code of ethics is available inthe “Corporate Governance” section of our website at http://investors.zayo.com/ corporate-governance .Special Note Regarding Forward-Looking StatementsInformation contained in this Annual Report that is not historical by nature constitutes “forward-looking statements” withinthe meaning of Section 27A of the Securities Act of 1933, Section 21E of the Securities Exchange Act of 1934 (the “ExchangeAct”) and the Private Securities Litigation Reform Act of 1995. These forward-looking statements typically include words suchas “believes,” “expects,” “plans,” “intends,” “estimates,” “projects,” “could,” “may,” “will,” “should,” or “anticipates” or thenegatives thereof, other variations thereon or comparable terminology, or discuss strategy. No assurance can be given that futureresults expressed or implied by the forward-looking statements will be achieved, and actual results may differ materially fromthose contemplated by the forward-looking statements. Such statements are based on management’s current expectations andbeliefs and are subject to a number of risks and uncertainties that could cause actual results to differ materially from thoseexpressed or implied by the forward-looking statements. These risks and uncertainties include, but are not limited to, thoserelating to the Company’s financial and operating prospects, current economic trends, future opportunities, ability to retainexisting customers and attract new ones, the Company’s acquisition strategy and ability to integrate acquired companies andassets and achieve our planned synergies, outlook of customers, reception of new products and technologies, and strength ofcompetition and pricing. Other factors and risks that may affect our business and future financial results are detailed in our SECfilings, including but not limited to those described under “Item 1A. Risk Factors” and “Item 7. Management’s Discussion andAnalysis of Financial Condition and Results of Operations” contained within this Annual Report. We caution you not to placeundue reliance on these forward-looking statements, which speak only as of their respective dates. We undertake no obligation topublicly update or revise forward-looking statements to reflect events or circumstances after the date of this Annual Report or toreflect the occurrence of unanticipated events, except as may be required by law.ITEM 1A. RISK FACTORSYou should carefully consider the risks described below as well as the other information contained in this Annual Report. Ifany of the following risks or uncertainties actually occurs, our business, financial condition, results of operations, cash flow andprospects could be materially and adversely affected.Risks Related to our BusinessWe have consistently generated net losses since our inception and such losses may continue in the future.We have consistently generated net losses since our inception and such losses may continue in the future. These net lossesprimarily have been driven by significant depreciation, amortization, interest expense, and stock-based compensation. DuringFiscal 2016, we had depreciation and amortization expense of $516.3 million, stock-based compensation expense of $155.9million, and interest expense of $220.1 million. At June 30, 2016, we had $4,218.1 million of total debt (including capital leaseobligations and before any unamortized discounts, premiums and debt issuance costs). We cannot assure you that we willgenerate net income in the future.Since our inception, we have used more cash than we have generated from operations, and we may continue to do so.Since our inception, we have consistently consumed our entire positive cash flow generated from operating activities withour investing activities. Our investing activities have consisted principally of the acquisition of businesses17 Table of Contentsas well as material additions to property and equipment. We have funded the excess of cash used in investing activities over cashprovided by operating activities with proceeds from equity contributions and equity and debt issuances.We intend to continue to invest in expanding our fiber network and our business and pursuing acquisitions that we believeprovide an attractive return on our capital. These investments may continue to exceed the amount of cash flow available fromoperations after debt service requirements. To the extent that our investments exceed our cash flow from operations, we plan torely on potential future debt or equity issuances, which could increase interest expense or dilute the interest of our stockholders,as well as cash on hand and borrowings under our revolving credit facility. We cannot assure you, however, that we will be ableto obtain or continue to have access to sufficient capital on reasonable terms, or at all, to successfully grow our business.We are highly dependent on our management team and other key employees, many of whom own equity that was previouslyilliquid but became liquid as a result of our IPO.We expect that our continued success will largely depend upon the efforts and abilities of members of our managementteam and other key employees. Our success also depends upon our ability to identify, attract, develop, and retain qualifiedemployees. None of the executive management team except for Mr. Caruso is bound by an employment agreement with us. If welost members of our management team or other key employees, it could have a material adverse effect on our business. All of our executive officers and many of our key management and employees have had a significant portion of theircompensation paid in equity. The liquidity provided by our IPO and subsequent equity offerings in many cases representsmaterial wealth of our executive officers and key management employees that may impact retention and focus of existing keyemployees.Our revenue is relatively concentrated among a small number of customers, and the loss of any of these customers couldsignificantly harm our business, financial condition, results of operations, and cash flows.Our largest single customer, based on recurring revenue, accounted for approximately 6% of our revenue during Fiscal2016, and total revenues from our top ten customers accounted for approximately 26% of our revenue during Fiscal 2016. Wecurrently depend, and expect to continue to depend, upon a relatively small number of customers for a significant percentage ofour revenue. Many of these customers are also competitors for some or all of our service offerings. Our customer contractstypically have terms of one to twenty years. Our customers may elect not to renew these contracts. Furthermore, our customercontracts are terminable for cause if we breach a material provision of such contracts. We may face increased competition andpricing pressure as our customer contracts become subject to renewal. Our customers may negotiate renewal of their contracts atlower rates, for fewer services or for shorter terms. Many of our customers are in the telecommunications industry, which isundergoing consolidation. To the extent that two or more of our customers combine, they may be able to use their greater size tonegotiate lower prices from us and may purchase fewer services from us, especially if their networks overlap. If we are unable tosuccessfully renew our customer contracts on commercially acceptable terms, or if our customer contracts are terminated, ourbusiness could suffer.We are also subject to credit risk associated with the concentration of our accounts receivable from our key customers. Ifone or more of these customers were to become bankrupt, insolvent or otherwise were unable to pay for the services provided byus, we may incur significant write-offs of accounts receivable or incur impairment charges.We have numerous customer orders for connections, including contracts with multiple national wireless carriers to build outadditional towers. If we are unable to satisfy new orders or build our network according to contractually specified deadlines, wemay incur penalties or suffer the loss of revenue.Future acquisitions are a component of our strategic plan, and will include integration and other risks that could harm ourbusiness.We have grown rapidly and intend to continue to acquire complementary businesses and assets, and some of theseacquisitions may be large or in new geographic areas where we do not currently operate. This exposes us to the risk that when weevaluate a potential acquisition target we over-estimate the target’s value and, as a result, pay too much for it. We also cannot becertain that we will be able to successfully integrate acquired assets or the operations of the acquired18 Table of Contentsentity with our existing operations. Businesses and assets that we have acquired or may acquire in the future may be subject tounknown or contingent liabilities for which we may have limited or no recourse against the sellers. While we usually require thesellers to indemnify us with respect to breaches of representations and warranties that survive, such indemnification is oftenlimited and subject to various materiality thresholds, a significant deductible or an aggregate cap on losses. As a result, there isno guarantee that we will recover any amounts with respect to losses due to breaches by the sellers of their representations andwarranties. In addition, the total amount of costs and expenses that we may incur with respect to liabilities associated withacquired properties and entities may exceed our expectations, which may adversely affect our operating results and financialcondition.We have previously engaged in and may continue to engage in large acquisitions, such as the AboveNet and Allstreamacquisitions, which could be much more difficult to integrate. Difficulties with integration could cause material customerdisruption and dissatisfaction, which could in turn increase churn and reduce new sales. Additionally, we may not be able tointegrate acquired businesses in a manner that permits us to realize the cost synergies we anticipate in the time, manner, oramount we currently expect, or at all. Our actual cost synergies, cost savings, growth opportunities, and efficiency and operationalbenefits resulting from any acquisition may be lower and may take longer to realize than we currently expect. In addition, somerecently acquired companies have had Adjusted EBITDA margins that were lower than ours, which had a negative impact on ourincremental margins. Future acquisitions may have a similar effect. In addition, as a result of our frequent acquisitions, researchanalysts' valuation models may not take into account current acquisitions, or they may not correctly or timely include the effectsof such acquisitions, which may cause our reported results to differ from their expectations.We may incur additional debt or issue additional equity to assist in the funding of these potential transactions, which mayincrease our leverage and/or dilute the interest of our stockholders. Further, additional transactions could cause disruption of ourongoing business and divert management’s attention from the management of daily operations to the closing and integration ofthe acquired business. Acquisitions also involve other operational and financial risks such as:·increased demand on our existing employees and management related to the increase in the size of the business and thepossible distraction from our existing business due to the acquisition;·loss of key employees and salespeople of the acquired business;·liabilities of the acquired business, both unknown and known at the time of the consummation of the acquisition;·discovery that the financial statements we relied on to buy a business were incorrect;·expenses associated with the integration of the operations of the acquired business;·the possibility of future impairment, write-downs of goodwill and other intangibles associated with the acquiredbusiness;·finding that the services and operations of the acquired business do not meet the level of quality of those of our existingservices and operations; and·recognizing that the internal controls of the acquired business were inadequate.We are growing rapidly and may not maintain or efficiently manage our growth.We have rapidly grown our company through acquisitions of companies and assets as well as expansion of our ownnetwork and the acquisition of new customers through our own sales efforts. We also intend to continue to grow our company,including through acquisitions, some of which may be large. Customers can be reluctant to switch providers of bandwidthservices because it can involve substantial expense and technical difficulty. That can make it harder for us to acquire newcustomers through our own sales efforts. Our expansion may place strains on our management and our operational and financialinfrastructure. Our ability to manage our growth will be particularly dependent upon our ability to:·expand, develop, and retain an effective sales force and other qualified personnel;19 Table of Contents·maintain the quality of our operations and our service offerings;·attract customers to switch from their current providers to us in spite of the costs associated with switching providers;·maintain and enhance our system of internal controls to ensure timely and accurate reporting; and·expand our operational information systems in order to support our growth, including integrating new customerswithout disruption.Service level agreements in our customer agreements could subject us to liability or the loss of revenue.Our contracts with customers typically contain service guarantees (including network availability) and service delivery datetargets, which could enable customers to claim credits and, under certain conditions, terminate their agreements. Our inability tomeet our service level guarantees could adversely affect our revenue. In Fiscal 2016, lost revenue from failure to meet servicelevel guarantees was approximately $1.6 million. While we typically have carve-outs for force majeure events, many events, suchas fiber cuts, equipment failure and third-party vendors being unable to meet their underlying commitments with us, could impactour ability to meet our service level agreements.Any failure of our physical infrastructure or services could lead to significant costs and disruptions.Our business depends on providing customers with highly reliable service. The services we provide are subject to failureresulting from numerous factors, including:·human error;·power loss;·improper building maintenance by the landlords of the buildings in which our data centers are located;·physical or electronic security breaches;·fire, earthquake, hurricane, flood, and other natural disasters;·water damage;·the effect of war, terrorism, and any related conflicts or similar events worldwide; and·sabotage and vandalism.Problems within our network or our data centers, whether within our control or the control of our landlords or other third-party providers, could result in service interruptions or equipment damage. As current and future customers increase their powerusage in our facilities over time, the remaining available power for future customers could limit our ability to grow our businessand increase occupancy rates or network density within our existing facilities. Accordingly, we may not be able to efficientlyupgrade or change these systems to meet new demands without incurring significant costs that we may not be able to pass on toour customers. In the past, we have experienced disruptions in our network attributed to equipment failure and power outages.Although such disruptions have been remedied and the network has been stabilized, there can be no assurance that similardisruptions will not occur in the future. Given the service level agreement obligations we typically have in our customer contracts,such disruptions could result in customer credits; however, we cannot assume that our customers will accept these credits ascompensation in the future, and we may face additional liability or loss of customers.We use franchises, licenses, permits, rights-of-way, conduit leases, fiber agreements, and property leases, which could becanceled or not renewed.We must maintain rights-of-way, franchises, and other permits from railroads, utilities, state highway authorities, localgovernments, transit authorities, and others to operate our owned fiber network. We cannot be certain that we will be successfulin maintaining these rights-of-way agreements or obtaining future agreements on acceptable terms. Some of these agreements areshort-term or revocable at will, and we cannot assure you that we will continue to have access to20 Table of Contentsexisting rights-of-way after they have expired or terminated. If a material portion of these agreements are terminated or are notrenewed, we might be forced to abandon our networks. In order to operate our networks, we must also maintain fiber leases andIRU agreements that we have with public and private entities. There is no assurance that we will be able to renew those fiberroutes on favorable terms, or at all. If we are unable to renew those fiber routes on favorable terms, we may face increased costsor reduced revenues.In order to expand our network to new locations, we often need to obtain additional rights-of-way, franchises, and otherpermits. Our failure to obtain these rights in a prompt and cost-effective manner may prevent us from expanding our network,which may be necessary to meet our contractual obligations to our customers and could expose us to liabilities.If we lose or are unable to renew key real property leases where we have located our POPs, it could adversely affect ourservices and increase our costs, as we would be required to restructure our network and move our POPs.We are required to maintain, repair, upgrade, and replace our network and our facilities, the cost of which could materiallyimpact our results and our failure to do so could irreparably harm our business.Our business requires that we maintain, repair, upgrade, and periodically replace our facilities and networks. This requiresmanagement time and capital expenditures. In the event that we fail to maintain, repair, upgrade, or replace essential portions ofour network or facilities, it could lead to a material degradation in the level of service that we provide to our customers. Ournetworks can be damaged in a number of ways, including by other parties engaged in construction close to our network facilities.In the event of such damage, we will be required to incur expenses to repair the network. We could be subject to significantnetwork repair and replacement expenses in the event a terrorist attack or a natural disaster damages our network. Further, theoperation of our network requires the coordination and integration of sophisticated and highly specialized hardware and software.Our failure to maintain or properly operate this can lead to degradations or interruptions in customer service. Our failure toprovide proper customer service could result in claims from our customers, early termination of contracts, and damage to ourreputation.Our debt level could negatively impact our financial condition, results of operations, cash flows, and business prospects andcould prevent us from fulfilling our obligations under our outstanding indebtedness. In the future, we may incur substantiallymore indebtedness, which could further increase the risks associated with our leverage.As of June 30, 2016, our total debt (including capital lease obligations and before any unamortized discounts, premiums ordebt issuance costs) was $4,218.1 million, primarily consisting of the following indebtedness incurred by our subsidiaries, ZayoGroup, LLC (“ZGL”) and Zayo Capital, Inc. (“Zayo Capital”): $1,430.0 million of 6.00% senior unsecured notes due 2023 (the“2023 Unsecured Notes”), $900.0 million of 6.375% senior unsecured notes due 2025 (the “2025 Unsecured Notes”, collectivelywith the 2023 Unsecured Notes, the “Notes”), a $1,837.4 million senior secured term loan facility (the “Term Loan Facility”) and$50.7 million in capital lease obligations . In addition, ZGL and Zayo Capital have a $450.0 million senior secured revolvingcredit facility (the “Revolver,” and collectively with the Term Loan Facility, the “Credit Facilities”), of which $442.1 million wasavailable at June 30, 2016, subject to certain conditions. Subject to the limitations set forth in the indentures (the “Indentures”)governing the Notes and the agreement governing the Credit Facilities (the “Credit Agreement”), ZGL may incur additionalindebtedness (including additional first lien obligations) in the future. If new indebtedness is added to our current levels ofindebtedness, the related risks that we now face in light of our current debt level, including our possible inability to service ourdebt, could intensify. Our level of debt could have important consequences, including the following:·making it more difficult for us to satisfy our obligations under our debt agreements;·requiring us to dedicate a substantial portion of our cash flow from operations to required payments on debt, therebyreducing the availability of cash flow for working capital, capital expenditures, and other general business activities;·limiting our ability to obtain additional financing in the future for working capital, capital expenditures, acquisitions,and general corporate and other activities;21 Table of Contents·limiting our flexibility in planning for, or reacting to, changes in our business and the industry in which we operate;·increasing our vulnerability to both general and industry-specific adverse economic conditions;·placing us at a competitive disadvantage relative to less leveraged competitors; and·preventing us from raising the funds necessary to repurchase the Notes tendered to ZGL upon the occurrence of certainchanges of control, which would constitute a default under the Indentures.Cash payments for interest, net of capitalized interest, which are reflected in our cash flows from operating activities,during the year ended June 30, 2016 were $228.5 million, and represented 32% of our cash flows from operating activities. Cashpayments related to principal payments on our debt obligations (including capital leases) during the year ended June 30, 2016 of$18.3 million (exclusive of our $196.0 million prepayment of our Term Loan Facility and $325.6 million redemption of our10.125% senior unsecured notes due 2020 (the “2020 Unsecured Notes”)), which are reflected in our cash flows from financingactivities, and represented 3% of our cash flows from operating activities during the period.We may not be able to generate enough cash flow to meet our debt obligations.Our future cash flow may be insufficient to meet our debt obligations and commitments. Any insufficiency could negativelyimpact our business. A range of economic, competitive, business, regulatory, and industry factors will affect our future financialperformance, and, as a result, our ability to generate cash flow from operations and to pay our debt. Many of these factors, such aseconomic and financial conditions in our industry and the U.S. or the global economy, or competitive initiatives of ourcompetitors, are beyond our control.If we do not generate enough cash flow from operations to satisfy our debt obligations, we may have to undertakealternative financing plans, such as:·reducing or delaying capital investments;·raising additional capital;·refinancing or restructuring our debt; and·selling assets.We cannot assure you that we would be able to implement alternative financing plans, if necessary, on commerciallyreasonable terms, or at all, or that implementing any such alternative financing plans would allow us to meet our debt obligations.If ZGL is unable to meet its debt service obligations, it would be in default under the terms of the Indentures and the CreditAgreement, permitting acceleration of the amounts due on the Notes and under the Credit Agreement and eliminating our abilityto draw on the Revolver. If the amounts outstanding under the Credit Facilities, the Notes, or other future indebtedness were to beaccelerated, we could be forced to file for bankruptcy.Our debt agreements contain restrictions on our ability to operate our business and to pursue our business strategies, and ourfailure to comply with these covenants could result in an acceleration of our indebtedness.The Indentures and the Credit Agreement each contain, and agreements governing future debt issuances may contain,covenants that restrict ZGL’s ability to, among other things:·incur additional indebtedness and issue preferred stock;·pay dividends or make other distributions with respect to any equity interests or make certain investments or otherrestricted payments;·create liens;22 Table of Contents·sell or otherwise dispose of assets, including capital stock of subsidiaries;·incur restrictions on the ability of its restricted subsidiaries to pay dividends or make other payments to it;·consolidate or merge with or into other companies or transfer all, or substantially all, of its assets;·engage in transactions with affiliates;·engage in business other than telecommunications; and·enter into sale and leaseback transactions.As a result of these covenants, we are limited in the manner in which we may conduct our business, and as a result we maybe unable to engage in favorable business activities or finance future operations or capital needs. The ability to comply with someof the covenants and restrictions contained in the Credit Agreement and the Indentures may be affected by events beyond ourcontrol. If market or other economic conditions deteriorate, ZGL’s ability to comply with these covenants may be impaired.In addition, the Credit Agreement requires ZGL to comply with a maximum secured leverage ratio at the end of any fiscalquarter in the event that usage of the Revolver exceeds 35% of the commitments thereunder. Our ability to comply with this ratiomay be affected by events beyond our control. These restrictions limit our ability to plan for or react to market conditions, meetcapital needs, or otherwise constrain our activities or business plans. They also may adversely affect our ability to finance ouroperations, enter into acquisitions, or engage in other business activities that would be in our interest.A failure to comply with the covenants, ratios, or tests in the Credit Agreement, the Indentures, or the agreement governingany future indebtedness could result in an event of default under the Credit Facilities, the Indentures or such agreement governingany future indebtedness, as applicable, which if not cured or waived could have a material adverse effect on our business,financial condition, and results of operations.An event of default under the Credit Agreement would allow the lenders to declare all borrowings outstanding to be dueand payable or to terminate the ability to borrow under the Revolver. An event of default under the Indentures or the agreementgoverning any future indebtedness could lead to the acceleration of the obligations under the Notes or such future indebtedness, asapplicable. If the amounts outstanding under the Credit Facilities, the Notes or other future indebtedness were to be accelerated,we cannot assure that our assets would be sufficient to repay in full the money owed. In such a situation, we could be forced tofile for bankruptcy.Our future tax liabilities are not predictable or controllable. If we become subject to increased levels of taxation, our financialcondition and operations could be negatively impacted.We provide telecommunication and other services in multiple jurisdictions across the United States, Canada and Europeand are, therefore, subject to multiple sets of complex and varying tax laws and rules. We cannot predict the amount of future taxliabilities to which we may become subject. Any increase in the amount of taxation incurred as a result of our operations or due tolegislative or regulatory changes would be adverse to us. In addition, we may become subject to income tax audits by many taxjurisdictions throughout the world. It is possible that certain tax positions taken by us could result in tax liabilities for us. Whilewe believe that our current provisions for taxes are reasonable and appropriate, we cannot assure you that these items will besettled for the amounts accrued or that we will not identify additional exposures in the future.We cannot assure you whether, when or in what amounts we will be able to use our net operating losses, or when they will bedepleted.At June 30, 2016, we had approximately $1,239.7 million of U.S. federal net operating losses (“NOLs”), which relateprimarily to prior acquisitions. Under certain circumstances, these NOLs can be used to offset our future U.S. federal taxableincome. If we experience an “ownership change,” as defined in Section 382 of the Internal Revenue Code and related Treasuryregulations at a time when our market capitalization is below a certain level, our ability to use the23 Table of ContentsNOLs could be substantially limited. This limit could impact the timing of the usage of the NOLs, thus accelerating cash taxpayments or causing NOLs to expire prior to their use, which could affect the ultimate realization of the NOLs.Furthermore, transactions that we enter into, as well as transactions by existing or future 5% stockholders that we do notparticipate in, could cause us to incur an “ownership change,” which could prevent us from fully utilizing our NOLs to reduce ourfederal income taxes. These limitations could cause us not to pursue otherwise favorable acquisitions and other transactionsinvolving our capital stock, or could reduce the net benefits to be realized from any such transactions. Despite this, we expect touse substantially all of these NOLs and certain other deferred tax attributes as an offset to our federal future taxable income,although the timing of that use will depend upon our future earnings and future tax circumstances. If and when our NOLs are fullyutilized, we expect that the amount of our cash flow dedicated to the payment of federal taxes will increase substantially.We may be subject to interest rate risk and increasing interest rates may increase our interest expense.Borrowings under each of the Credit Facilities bear, and our future indebtedness may bear, interest at variable rates andexpose us to interest rate risk. If interest rates increase, our debt service obligations on the variable rate indebtedness wouldincrease even though the amount borrowed remained the same, and our net income and cash available for servicing ourindebtedness would decrease.The international operations of our business expose us to risks that could materially and adversely affect the business.We have operations and investments outside of the United States, as well as rights to undersea cable capacity extending toother countries, that expose us to risks inherent in international operations. These include:·general economic, social and political conditions;·the difficulty of enforcing agreements and collecting receivables through certain foreign legal systems;·tax rates in some foreign countries may exceed those in the U.S.;·foreign currency exchange rates may fluctuate, which could adversely affect our results of operations and the value ofour international assets and investments;·foreign earnings may be subject to withholding requirements or the imposition of tariffs, exchange controls or otherrestrictions;·difficulties and costs of compliance with foreign laws and regulations that impose restrictions on our investments andoperations, with penalties for noncompliance, including loss of licenses and monetary fines;·difficulties in obtaining licenses or interconnection arrangements on acceptable terms, if at all; and·changes in U.S. laws and regulations relating to foreign trade and investment.We may as part of our expansion strategy increase our exposure to international investments and operations.On June 23, 2016, the United Kingdom (“U.K.”) held a referendum in which voters approved an exit from the EuropeanUnion (“E.U.”), commonly referred to as “Brexit”. As a result of the referendum, it is expected that the British government willbegin negotiating the terms of the U.K.’s future relationship with the E.U. Although it is unknown what those terms will be, it ispossible that there will be increased regulatory complexities that may adversely affect our operations and financial results. Inaddition, the announcement of Brexit caused significant volatility in global stock markets and currency exchange fluctuations thatresulted in the strengthening of the U.S. dollar against foreign currencies in which we conduct business, which may adverselyaffect our results of operations and the value of our international assets and investments.24 Table of ContentsOur international operations are subject to the laws and regulations of the U.S. and many foreign countries, including theU.S. Foreign Corrupt Practices Act, the Canadian Corruption of Foreign Public Officials Act and the U.K. Bribery Act.We are subject to a variety of laws regarding our international operations, including the U.S. Foreign Corrupt PracticesAct, the Canadian Corruption of Foreign Public Officials Act and the U.K. Bribery Act of 2010, and regulations issued by U.S.Customs and Border Protection, the U.S. Bureau of Industry and Security, the U.S. Treasury Department’s Office of ForeignAssets Control (“OFAC”) and various other foreign governmental agencies. We cannot predict the nature, scope or effect offuture regulatory requirements to which our international operations might be subject or the manner in which existing laws mightbe administered or interpreted. Actual or alleged violations of these laws could lead to enforcement actions and financial penaltiesthat could result in substantial costs.The U.S. Foreign Corrupt Practices Act, the Canadian Corruption of Foreign Public Officials Act, the U.K. Bribery Actand similar anti-bribery laws in other jurisdictions generally prohibit companies and their intermediaries from making improperpayments for the purpose of obtaining or retaining business. Recent years have seen a substantial increase in anti-bribery lawenforcement activity with more frequent and aggressive investigations and enforcement proceedings by both the Department ofJustice and the U.S. Securities and Exchange Commission, increased enforcement activity by non-U.S. regulators and increases incriminal and civil proceedings brought against companies and individuals. We have created and implemented a program forcompliance with anti-bribery laws. Because our anti-bribery internal control policies and procedures have been recentlyimplemented, we may have increased exposure to reckless or criminal acts committed by our employees or third-partyintermediaries. Violations of these anti-bribery laws may result in criminal or civil sanctions, which could have a material adverseeffect on our business, financial condition, results of operations and liquidity.Our international operations expose us to currency risk.We conduct a portion of our business using the British Pound Sterling (“GBP”), Canadian Dollar and the Euro.Appreciation of the U.S. Dollar adversely affects our consolidated revenue. For example, the U.S. Dollar has appreciatedsignificantly against the GBP, Euro and Canadian Dollar in recent periods. Since we tend to incur costs in the same currency inwhich those operations realize revenue, the effect on operating income and operating cash flow is largely mitigated. However, ifthe U.S. Dollar continues to appreciate significantly, future revenues, operating income and operating cash flows could bematerially affected.We may be vulnerable to security breaches that could disrupt our operations and adversely affect our business and operations.Despite security measures and business continuity plans, our information technology networks and infrastructure may bevulnerable to damage, disruptions, or shutdowns due to unauthorized access, computer viruses, cyber-attacks, distributed denial ofservice, and other security breaches. An attack on or security breach of our network could result in interruption or cessation ofservices, our inability to meet our service level commitments, and potentially compromise customer data transmitted over ournetwork. We cannot guarantee that our security measures will not be circumvented, resulting in network failures or interruptionsthat could impact our network availability and have a material adverse effect on our business, financial condition, and operationalresults. We may be required to expend significant resources to protect against such threats. If an actual or perceived breach of oursecurity occurs, the market perception of the effectiveness of our security measures could be harmed, and we could losecustomers. Any such events could result in legal claims or penalties, disruption in operations, misappropriation of sensitive data,damage to our reputation, and/or costly response measures, which could adversely affect our business.If we are unable to renew collective bargaining agreements on satisfactory terms, or we experience strikes, work stoppages orlabor unrest, our business could suffer. Certain of the employees that we acquired in our Allstream acquisition are covered by collective bargaining agreements.There can be no assurance that such agreements will be renewed on terms favorable to us. If we are unable to renew suchagreements on satisfactory terms, our labor costs could increase, which would affect our profit margins. Further, changes ingovernmental regulations relating to labor relations, or otherwise in our relationship with our25 Table of Contentsemployees, including our unionized employees, may result in strikes, lockouts or other work stoppages, any of which could havean adverse effect on our business, results of operations and financial condition.Volatility in the equity markets, interest rates or other factors could substantially increase our pension costs.We sponsor defined benefit pension plans for certain of our Canadian employees. The difference between plan obligationsand assets, or the funded status of the plans, significantly affects the net periodic benefit costs of our pension plans and theongoing funding requirements of those plans. Among other factors, changes in interest rates, mortality rates, early retirementrates, investment returns, minimum funding requirements and the market value of plan assets can affect the level of plan funding,cause volatility in the net periodic pension cost and increase our future funding requirements. Legislative and other governmentalregulatory actions may also increase funding requirements for our pension plans’ benefits obligation.A significant increase in our pension benefit obligations or funding requirements could have a negative impact on our abilityto invest in the business and adversely affect our financial condition and results of operations. We have identified material weaknesses in our internal control over financial reporting which could, if not remediated, resultin material misstatements in our financial statements . Our management is responsible for establishing and maintaining adequate internal control over our financial reporting, asdefined in Rule 13a-15 under the Exchange Act. As disclosed in Item 9A, management identified material weaknesses in ourinternal control over financial reporting related to controls over general information technology systems and management reviewcontrols over the accounting for revenue recognition collectability criterion . A material weakness is defined as a deficiency, orcombination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a materialmisstatement of our annual or interim financial statements will not be prevented or detected on a timely basis. As a result of thesematerial weaknesses, our management concluded that our internal control over financial reporting was not effective based oncriteria set forth by the Committee of Sponsoring Organization of the Treadway Commission in Internal Control — AnIntegrated Framework (2013) . We are actively engaged in developing remediation plans designed to address these materialweaknesses. If our remedial measures are insufficient to address the material weaknesses, or if additional material weaknesses orsignificant deficiencies in our internal control are discovered or occur in the future, our consolidated financial statements maycontain material misstatements and we could be required to restate our financial results.Risks Related to Our IndustryWe could face increased competition from companies in the telecommunications and media industries that currently do notfocus on bandwidth infrastructure.Many of our competitors in the bandwidth infrastructure space are other focused bandwidth infrastructure providers thatoperate on a regional or local basis. In some cases, we also compete with communications service providers who also own certaininfrastructure assets and make them available to customers as an infrastructure service. These communication service providersinclude ILECs, such as AT&T and Verizon, and cable television companies, such as Comcast.Some of these competitors have greater financial, managerial, sales and marketing, and research and development resourcesthan we do and are able to promote their brands with significantly larger budgets. Most of them are also our customers. If ILECsand cable television companies focus on providing bandwidth infrastructure, it could have a material adverse effect on us. A fewof these competitors also have significant fiber assets that they principally employ in the provision of their communicationsservices. If any of these competitors with greater resources and/or significant fiber assets chose to focus those resources onbandwidth infrastructure, our ability to compete in the bandwidth infrastructure industry could be negatively impacted. To theextent that communication service providers, cable television companies, and other media companies choose to distribute theircontent over their own networks that could reduce demand for our services. Additionally, significant new entrants into thebandwidth services industry would increase supply, which could cause prices for our services to decline.26 Table of ContentsConsolidation among companies in the telecommunications and cable television industries could further strengthen ourcompetitors and adversely impact our business.The telecommunications and cable television industries are intensely competitive and continue to undergo significantconsolidation. There are many reasons for consolidation in these industries, including the desire for communications and cabletelevision companies to acquire network assets in regions where they currently have no or insufficient amounts of owned networkinfrastructure. The consolidation within the industry may cause customers to disconnect services to move them to their ownnetworks, or consolidate buying with other bandwidth infrastructure providers. Additionally, consolidation in the industry couldfurther strengthen our competitors, give them greater financial resources and geographic reach, and allow them to put additionalpressure on prices for bandwidth infrastructure services.Certain of our services are subject to regulation that could change or otherwise impact us in an adverse manner.Communications services are subject to domestic and international regulation at the federal, state, and local levels. Theseregulations affect our business and our existing and potential competitors. Our electronic communications services and electroniccommunications networks in Europe, Canada and elsewhere are subject to regulatory oversight by national communicationsregulators, such as the United Kingdom’s Office of Communications (“Ofcom”) and France’s Autorité de Régulation desCommunications Electroniques et des Postes (“ARCEP”). In addition, in the United States, both the FCC and the State PUCs orsimilar regulatory authorities typically require us to file periodic reports, pay various regulatory fees and assessments, and tocomply with their regulations. Similarly, in Canada, we are subject to the rules and oversight of the Canadian Radio-Televisionand Telecommunications Commission (“CRTC”) as well as the laws and regulations of other federal and provincial bodies. Suchcompliance can be costly and burdensome and may affect the way we conduct our business. Delays in receiving requiredregulatory approvals (including approvals relating to acquisitions or financing activities or for interconnection agreements withother carriers), the enactment of new and adverse international or domestic legislation or regulations (including those pertainingto broadband initiatives and net-neutrality), or the denial, modification or termination by a regulator of any approval orauthorization, could have a material adverse effect on our business. Further, the current regulatory landscape is subject to changethrough judicial review of current legislation and rulemaking by the FCC, Ofcom, ARCEP, CRTC and other domestic, foreign,and international rulemaking bodies. These bodies regularly consider changes to their regulatory framework and fee obligations.Changes in current regulation may make it more difficult to obtain the approvals necessary to operate our business, significantlyincrease the regulatory fees to which we are subject, or have other adverse effects on our future operations in the United States,Canada and Europe.We may be liable for the material that content providers distribute over our network.Although we believe our liability for third party information stored on or transmitted through our networks is limited, theliability of private network operators is affected both by changing technology and evolving legal principles. As a private networkprovider, we could be exposed to legal claims relating to third party content stored or transmitted on our networks. Such claimscould involve, among others, allegations of defamation, invasion of privacy, copyright infringement, or aiding and abettingrestricted activities such as online gambling or pornography. If we decide to implement additional measures to reduce ourexposure to these risks, or if we are required to defend ourselves against these kinds of claims, our operating results and financialcondition could be negatively affected. Unfavorable general global economic conditions could negatively impact our operating results and financial condition.Unfavorable general global economic conditions could negatively affect our business. Although it is difficult to predict theimpact of general economic conditions on our business, these conditions could adversely affect the affordability of, and customerdemand for, our services, and could cause customers to delay or forgo purchases of our services. One or more of thesecircumstances could cause our revenue to decline. Also, our customers may not be able to obtain adequate access to credit, whichcould affect their ability to purchase our services or make timely payments to us. The current economic conditions, includingfederal fiscal and monetary policy actions, may lead to inflationary conditions in our cost base, particularly in our lease andpersonnel related expenses. This could harm our margins and profitability if we are unable to increase prices or reduce costssufficiently to offset the effects of inflation in our cost base. For these reasons, among others, if challenging economic conditionspersist or worsen, our operating results and financial condition could be adversely affected.27 Table of ContentsDisruptions in the financial markets could affect our ability to obtain debt or equity financing or to refinance our existingindebtedness on reasonable terms or at all.Disruptions in the financial markets could impact our ability to obtain debt or equity financing, or lines of credit, in thefuture as well as impact our ability to refinance our existing indebtedness on reasonable terms or at all, which could affect ourstrategic operations and our financial performance and force modifications to our operations.Changes in our traffic patterns or industry practice could result in increasing peering costs for our IP network.Peering agreements with other ISPs have allowed us to access the Internet and exchange traffic with these providers. Inmost cases, we peer with these ISPs on a payment-free basis, referred to as settlement-free peering. We plan to continue toleverage this settlement-free peering. If other providers change the terms upon which they allow settlement-free peering or ifchanges in Internet traffic patterns, including the ratio of inbound to outbound traffic, cause us to fall below the criteria that theseproviders use in allowing settlement-free peering, the costs of operating our Internet backbone will likely increase. Any increasesin costs could have an adverse effect on our margins and our ability to compete in the IP market.Terrorism and natural disasters could adversely impact our business.The ongoing threat of terrorist activity and other acts of war or hostility have had, and may continue to have, an adverseeffect on business, financial and general economic conditions. Effects from these events and any future terrorist activity,including cyber terrorism, may, in turn, increase our costs due to the need to provide enhanced security, which would adverselyaffect our business and results of operations. Terrorist activity could damage or destroy our Internet infrastructure and mayadversely affect our ability to attract and retain customers, raise capital, and operate and maintain our network access points. Weare particularly vulnerable to acts of terrorism because of our large data center presence in New York. We are also susceptible toother catastrophic events such as major natural disasters, extreme weather, fires, or similar events that could affect ourheadquarters, other offices, our network, infrastructure, or equipment, all of which could adversely affect our business.Risks Related to Ownership of Our Common StockOur stock price may be volatile or may decline regardless of our operating performance.The market price of our common stock may fluctuate significantly in response to numerous factors, many of which arebeyond our control. In addition to the other risk factors described herein, these factors include:·actual or anticipated fluctuations in our revenue and other operating results;·announcements by us or our competitors of significant technical innovations, acquisitions, strategic partnerships, jointventures or capital commitments;·changes in operating performance and stock market valuations of other companies in our industry;·the addition or loss of significant customers;·fluctuations in the trading volume of our common stock or the size of our public float;·announcements by us with regard to the effectiveness of our internal controls and our ability to accurately report ourfinancial results;·price and volume fluctuations in the overall stock market, including as a result of trends in the economy as a whole;·general economic, legal, regulatory and market conditions unrelated to our performance;·lawsuits threatened or filed against us; and·other events or factors, including those resulting from war, incidents of terrorism or responses to these events.28 Table of ContentsThe stock markets have experienced extreme fluctuations in price and trading volume that have caused and will likelycontinue to cause the stock prices of many telecommunications companies to fluctuate in a manner unrelated or disproportionateto the operating performance of those companies. In the past, stockholders have instituted securities class action litigationfollowing periods of declining stock prices. If we were to become involved in securities litigation, we could face substantial costsand be forced to divert resources and the attention of management from our business, which could adversely affect our business.If securities or industry analysts do not continue to publish or publish inaccurate or unfavorable research about our business,our stock price and trading volume could decline.The trading market for our common stock depends on the research and reports that securities or industry analysts publishabout us or our business. Certain securities and industry analysts currently publish research reports with respect to our commonstock and certain of our debt securities. If they fail to publish reports about us or our securities regularly, or otherwise cease tocover our Company, demand for our stock could decrease and the trading price of our stock could decline. A downgrade of ourstock or the publication of inaccurate or unfavorable research about our business would likely cause our stock price to decline.Sales of substantial amounts of our common stock in the public market, or the perception that they might occur, could reducethe price that our common stock might otherwise attain.We cannot predict what effect, if any, future issuances by us of our common stock will have on the market price of ourcommon stock. In addition, shares of our common stock that we issue in connection with an acquisition may not be subject toresale restrictions. The market price of our common stock could drop significantly if certain large holders of our common stock,or recipients of our common stock in connection with an acquisition, sell all or a significant portion of their shares of commonstock or are perceived by the market as intending to sell these shares other than in an orderly manner. In addition, these salescould impair our ability to raise capital through the sale of additional common stock in the capital markets.Delaware law and our amended and restated certificate of incorporation and bylaws contain provisions that could delay ordiscourage takeover attempts that our stockholders may consider favorable.Provisions in our amended and restated certificate of incorporation and amended and restated bylaws may have the effect ofdelaying or preventing a change of control or changes in our management. These provisions include the following:·our board of directors is divided into three classes serving staggered three-year terms;·our board of directors has the right to elect a director to fill a vacancy created by the expansion of the board of directorsor due to the resignation or departure of an existing board member;·our directors are not elected by cumulative voting, which would allow less than a majority of stockholders to electdirector candidates;·advance notice of nominations for election to the board of directors or for proposing matters that can be acted upon at astockholders meeting is required;·our board of directors may alter our bylaws without obtaining stockholder approval;·our board of directors may issue, without stockholder approval, up to 50,000,000 shares of preferred stock with termsset by the board of directors, certain rights of which could be senior to those of our common stock;·stockholders do not have the right to call a special meeting of stockholders or to take action by written consent in lieuof a meeting;·approval of at least two-thirds of the shares outstanding and entitled to vote thereon is required to amend or repeal, oradopt any provision inconsistent with, our amended and restated bylaws or the provisions of our29 Table of Contentsamended and restated certificate of incorporation regarding, among other items, the election and removal of directors; and·directors may be removed from office only for cause.We have elected not to be governed by the provisions of Section 203 of the Delaware General Corporation Law (the“DGCL”); however, our amended and restated certificate of incorporation includes similar provisions providing that we may notengage in certain “business combinations” with any “interested stockholder” for three years following the time that suchstockholder became an interested stockholder, unless the business combination is approved in a prescribed manner. A “businesscombination” includes, among other things, a merger, asset or stock sale or other transaction resulting in a financial benefit to theinterested stockholder. An “interested stockholder” is a person who, together with affiliates and associates, owns, or did own,within three years prior to the determination of interested stockholder status, 15% or more of a corporation’s voting stock.Pursuant to our amended and restated certificate of incorporation, the term “interested stockholder” does not include the entitiesthat are current preferred equity holders of CII, which entities are listed in our certificate of incorporation (the “ExemptStockholders”), each of their respective affiliates, and any of their respective direct or indirect transferees and any group as towhich such persons are a party.These provisions may prohibit large stockholders (with the exception of the Exempt Stockholders described above),particularly those owning 15% or more of our outstanding voting stock, from merging or combining with us. These provisions inour amended and restated certificate of incorporation and our amended and restated bylaws and the DGCL could discouragepotential takeover attempts, could reduce the price that investors are willing to pay for shares of our common stock in the futureand could potentially result in the market price of our common stock being lower than it otherwise would be.In addition, our debt agreements may require very significant payments if we have a change of control, which reduces thepossibility that such an event will occur.Our directors, executive officers, holders of more than 5% of our common stock, together with their affiliates, continue tohave substantial control over the company.Our directors, executive officers, and holders of more than 5% of our common stock, together with their affiliates,beneficially owned, in the aggregate, approximately 47% of our outstanding common stock as of June 30, 2016. As a result, thesestockholders, acting together, would have the ability to effectively control the outcome of matters submitted to our stockholdersfor approval, including the election of directors and any merger, consolidation or sale of all or substantially all of our assets. Inaddition, these stockholders, acting together, would have the ability to effectively control our management and affairs.Accordingly, this concentration of ownership might harm the market price of our common stock by:·delaying, deferring or preventing a change in control;·impeding a merger, consolidation, takeover or other business combination involving us; or·discouraging a potential acquirer from making a tender offer or otherwise attempting to obtain control.We do not intend to pay dividends for the foreseeable future.We have never declared or paid cash dividends on our common stock. ZGL’s ability to pay dividends to us is limited by theCredit Agreement and Indentures, which may in turn limit our ability to pay dividends on our common stock. Our ability to paydividends may also be restricted by the terms of any future credit agreement or any future debt or preferred securities of ours or ofour subsidiaries. We currently intend to retain any future earnings to finance the operation and expansion of our business, and wedo not expect to declare or pay any dividends in the foreseeable future. As a result, you may only receive a return on yourinvestment in our common stock if the market price of our common stock increases.30 Table of ContentsWe incur significant costs as a result of being a publicly-traded company.Following our IPO, we are now subject to the reporting requirements of the Securities Exchange Act of 1934 (the“Exchange Act”), the Sarbanes-Oxley Act of 2002 (the “Sarbanes-Oxley Act”), the Dodd-Frank Wall Street Reform andConsumer Protection Act of 2010 and the rules and regulations of the NYSE. Being subject to these rules and regulations resultsin legal, accounting and financial compliance costs, makes some activities more difficult, time-consuming and costly and can alsoplace significant strain on our personnel, systems and resourcesITEM 1B. UNRESOLVED STAFF COMMENTSNone.ITEM 2. PROPERTIESOur principal properties are fiber optic networks and their component assets. We own a majority of the communicationsequipment required for operating the network and our business. As of June 30, 2016, we own or lease approximately 112,600fiber route miles or 8,700,000 fiber miles. We provide colocation and interconnection services utilizing our own data centerslocated within major carrier hotels and other strategic buildings in 61 locations throughout the United States, Canada and France.We generally do not own the buildings where we provide our colocation and interconnection services; however, the zColo groupmanages approximately 670,000 square feet of billable colocation space. See “Item 1. Business” for additional discussion relatedto our network and colocation properties.We lease our corporate headquarters in Boulder, Colorado as well as regional offices and sales, administrative and othersupport offices. Our corporate headquarters located at 1805 29th Street, Suite 2050, Boulder, Colorado is approximately 30,000square feet. We lease properties to locate the POPs necessary to operate our networks. Office and POP space is leased in themarkets where we maintain our network and generally ranges from 100 to 5,000 square feet. Each of our business units utilizethese facilities. The majority of our leases have renewal provisions at either fair market value or a stated escalation above the lastyear of the current term.ITEM 3. LEGAL PROCEEDINGSIn the ordinary course of business, we are from time to time party to various litigation matters that we believe are incidentalto the operation of our business. We record an appropriate provision when the occurrence of loss is probable and can bereasonably estimated. We cannot estimate with certainty our ultimate legal and financial liability with respect to any such pendinglitigation matters, and it is possible one or more of them could have a material adverse effect on us. However, we believe that theoutcome of any such pending litigation matters will not have a material adverse effect upon our results of operations, ourconsolidated financial condition, or our liquidity.ITEM 4. MINE SAFETY DISCLOSURESNot Applicable31 Table of ContentsPART IIITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED SHAREHOLDER MATTERS ANDISSUER PURCHASES OF EQUITY SECURITIESHolders of Our Common StockOur common stock has traded on the New York Stock Exchange (“NYSE”) under the symbol “ZAYO” since October 17,2014. Prior to that date, there was no public trading market for our common stock. Our IPO was priced at $19.00 per share onOctober 16, 2014. The following table sets forth, for the periods indicated, the high and low sales prices per share of our commonstock as reported on the NYSE. Year Ended June 30, 2016 High LowFirst Quarter 29.62 23.91 Second Quarter 27.74 21.89 Third Quarter 27.10 19.59 Fourth Quarter 28.27 23.68 On August 19, 2016, the closing price per share of our common stock on the NYSE was 28.80 per share, and there wereapproximately 480 stockholders of record of our common stock. The number of holders of record is based upon the actual numberof holders registered at such date and does not include holders of shares in “street name” or persons, partnerships, associates,corporations or other entities in security position listings maintained by depositories.Stock Performance GraphThe following graph illustrates the cumulative total stockholder return on our common stock from our IPO in October 2014through June 30, 2016, compared to the S&P 500 Index and the NASDAQ Telecommunications Index. The comparison assumesa hypothetical investment in our common stock and in each of the foregoing indices of $100 at October 17, 2014, and assumesthat all dividends were reinvested. Shareholder returns over the indicated period are based on historical data and should not beconsidered indicative of future shareholder returns. The graph and related disclosure in no way reflect our forecast of futurefinancial performance. 32 $$$Table of Contents October 17, 2014June 30, 2015June 30, 2016Zayo Group Holdings, Inc. Common Stock100 $116.8 $126.7S&P 500 Index100 $109.3 $111.1NASDAQ Telecommunications Index100 $110.0 $108.9 The above performance graph shall not be deemed to be incorporated by reference by means of any general statementincorporating by reference this Annual Report on Form 10-K into any filing under the Securities Act of 1933, as amended, or theSecurities Exchange Act of 1934, as amended, except to the extent that the Company specifically incorporates such informationby reference, and shall not otherwise be deemed filed under such acts.Dividend PolicyNo dividends have been declared or paid on our shares of common stock. We currently intend to retain all available fundsand any future earnings for use in the operation of our business, and therefore we do not anticipate paying any cash dividends inthe foreseeable future. Any future determination to pay dividends will be at the discretion of our board of directors and willdepend upon our financial condition, results of operations, cash flows, capital requirements, and other factors that our board ofdirectors deems relevant. We are a holding company, and substantially all of our operations are carried out by ZGL and itssubsidiaries. ZGL’s ability to pay dividends to us is limited by the Credit Agreement and Indentures, which may in turn limit ourability to pay dividends on our common stock. Our ability to pay dividends may also be restricted by the terms of any futurecredit agreement or any future debt or preferred securities.Issuer Purchases of Equity SecuritiesOn November 10, 2015, our Board of Directors authorized us to repurchase up to $500 million of our common stock. Thisauthorization expired on May 9, 2016. We did not repurchase any of our common stock in the quarter ended June 30, 2016. 33 Table of ContentsITEM 6. SELECTED FINANCIAL DATAThe following table presents selected historical consolidated financial information for Zayo Group Holdings, Inc. for theperiods and as of the dates indicated. The selected historical consolidated financial information for Zayo Group Holdings, Inc. asof and for the years ended June 30, 2016, 2015, 2014, 2013 and 2012 is derived from, and qualified by reference to, our auditedconsolidated financial statements and should be read in conjunction with such audited consolidated financial statements andrelated notes and “Item 7: Management’s Discussion and Analysis of Financial Condition and Results of Operations” includedelsewhere in this Annual Report. These historical results are not necessarily indicative of the results to be expected in the future. Year Ended June 30, 2016 2015 2014 2013 2012 (in millions, except for per share data)Consolidated Statements of Operations Data Revenue $1,721.7 $1,347.1 $1,123.2 $1,004.4 $375.5Operating costs and expenses 1,481.4 1,178.1 1,067.1 894.8 305.7Operating income 240.3 169.0 56.1 109.6 69.8Other expenses, net (308.0) (333.1) (200.4) (279.4) (52.8)(Loss)/earnings from continuing operations beforeincome taxes (67.7) (164.1) (144.3) (169.8) 17.0Provision/(benefit) for income taxes 8.5 (8.8) 37.3 (24.2) 26.9Loss from continuing operations (76.2) (155.3) (181.6) (145.6) (9.9)Earnings from discontinued operations, net of incometaxes — — 2.3 8.4 8.7Net loss $(76.2) $(155.3) $(179.3) $(137.2) $(1.2)Weighted-average shares used to compute net loss pershare: Basic and diluted 243.3 235.4 223.0 223.0 223.0Loss from continuing operations per share: Basic and diluted $(0.31) $(0.66) $(0.81) $(0.65) $(0.05)Earnings from discontinued operations per share Basic and diluted — — 0.01 0.04 0.04Net loss per share Basic and diluted $(0.31) $(0.66) $(0.80) $(0.61) $(0.01)Consolidated Balance Sheet Data (at period end): Cash and cash equivalents $170.7 $308.6 $297.4 $91.3 $150.7Property and equipment, net 4,079.5 3,299.2 2,822.4 2,437.7 754.7Total assets 6,727.5 6,094.6 4,981.7 4,152.1 1,425.1Long-term debt and capital lease obligations, includingcurrent portion 4,136.0 3,701.4 3,179.0 2,744.8 684.3Total stockholders' equity 1,219.2 1,211.2 416.4 606.3 410.3 34 Table of ContentsITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OFOPERATIONSInformation contained in this Annual Report on Form 10-K (this “Annual Report”), and in other filings by Zayo GroupHoldings, Inc. (“we” or “us”), with the Securities and Exchange Commission (the “SEC”) that is not historical by natureconstitutes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, Section 21E of theSecurities Exchange Act of 1934 and the Private Securities Litigation Reform Act of 1995. These forward-looking statementstypically include words such as “believes,” “expects,” “plans,” “intends,” “estimates,” “projects,” “could,” “may,” “will,”“should,” or “anticipates,” or the negatives thereof, other variations thereon or comparable terminology, or discuss strategy. Noassurance can be given that future results expressed or implied by the forward-looking statements will be achieved, and actualresults may differ materially from those contemplated by the forward-looking statements. Such statements are based onmanagement’s current expectations and beliefs and are subject to a number of risks and uncertainties that could cause actualresults to differ materially from those expressed or implied by the forward-looking statements. These risks and uncertaintiesinclude, but are not limited to, those relating to our financial and operating prospects, current economic trends, futureopportunities, ability to retain existing customers and attract new ones, our acquisition strategy and ability to integrate acquiredcompanies and assets and achieve our planned synergies, outlook of customers, reception of new products and technologies, andstrength of competition and pricing. Other factors and risks that may affect our business and future financial results are detailed inour SEC filings, including, but not limited to, those described under “Item 1A: Risk Factors” and in this “Management’sDiscussion and Analysis of Financial Condition and Results of Operations.” We caution you not to place undue reliance on theseforward-looking statements, which speak only as of their respective dates. We undertake no obligation to publicly update orrevise forward-looking statements to reflect events or circumstances after the date of this Annual Report or to reflect theoccurrence of unanticipated events, except as may be required by law.The following discussion and analysis should be read together with our audited consolidated financial statements and therelated notes appearing elsewhere in this Annual Report.Amounts presented in this Item 7 are rounded. As such, rounding differences could occur in period-over-period changesand percentages reported throughout this Item 7.OverviewIntroductionWe are a large and fast growing provider of bandwidth infrastructure in the United States, Europe and Canada. Ourproducts and services enable mission-critical, high-bandwidth applications, such as cloud-based computing, video, mobile, socialmedia, machine-to-machine connectivity, and other bandwidth-intensive applications. Key products include leased dark fiber,fiber to cellular towers and small cell sites, dedicated wavelength connections, Ethernet, IP connectivity, cloud services and otherhigh-bandwidth offerings. We provide our services over a unique set of dense metro, regional, and long-haul fiber networks andthrough our interconnect-oriented data center facilities. Our fiber networks and data center facilities are critical components of theoverall physical network architecture of the Internet and private networks. Our customer base includes some of the largest andmost sophisticated consumers of bandwidth infrastructure services, such as wireless service providers; telecommunicationsservice providers; financial services companies; social networking, media, and web content companies; education, research, andhealthcare institutions; and governmental agencies. We typically provide our bandwidth infrastructure services for a fixedmonthly recurring fee under contracts that vary between one and twenty years in length. As of June 30, 2016 , we had $6. 9billion in revenue under contract with a weighted average remaining contract term of approximately 48 months. We operate ourbusiness with a unique focus on capital allocation and financial performance with the ultimate goal of maximizing equity valuefor our stockholders. Our core values center on partnership, alignment, and transparency with our three primary constituentgroups-employees, customers, and stockholders.On October 22, 2014, we completed an initial public offering (“IPO”) of shares of our common stock, which were listed onthe New York Stock Exchange (“NYSE”) under the ticker symbol “ZAYO”. Prior to the IPO, we were a direct, wholly ownedsubsidiary of Communications Infrastructure Investments, LLC ("CII"). Our primary operating subsidiary is Zayo Group, LLC, aDelaware limited liability company (“ZGL”), and we are headquartered in Boulder, Colorado.35 Table of ContentsOur fiscal year ends June 30 each year, and we refer to the fiscal year ended June 30, 2016 as “Fiscal 2016,” the fiscal yearended June 30, 2015 as “Fiscal 2015,” and the fiscal year ended June 30, 2014 as “Fiscal 2014.”Our SegmentsWe use the management approach to determine the segment financial information that should be disaggregated andpresented. The management approach is based on the manner by which management has organized the segments within theCompany for making operating decisions, allocating resources, and assessing performance. As of June 30, 2016, we have fivereportable segments as described below:·Dark Fiber Solutions . Through the Dark Fiber Solutions segment, we provide raw bandwidth infrastructure tocustomers that require more control of their internal networks. These services include dark fiber and mobileinfrastructure (fiber-to-the-tower and small cell). Dark fiber is a physically separate and secure, private platform fordedicated bandwidth. We lease dark fiber pairs (usually 2 to 12 total fibers) to our customers, who “light” the fiberusing their own optronics. Our mobile infrastructure services provide direct fiber connections to cell towers, smallcells, hub sites, and mobile switching centers. Dark Fiber Solutions customers include carriers and othercommunication service providers, Internet service providers, wireless service providers, major media and contentcompanies, large enterprises, and other companies that have the expertise to run their own fiber optic networks orrequire interconnected technical space. The contract terms in the Dark Fiber Solutions segment tend to range fromthree to twenty years.·Network Connectivity . The Network Connectivity segment provides bandwidth infrastructure solutions over ourmetro, regional, and long-haul fiber networks where it uses optronics to light the fiber and our customers pay foraccess based on the amount and type of bandwidth they purchase. Our services within this segment includewavelength, Ethernet, IP and SONET. We target customers who require a minimum of 10G of bandwidth acrosstheir networks. Network Connectivity customers include carriers, financial services companies, healthcare,government institutions, education institutions and other enterprises. The contract terms in this segment tend torange from two to five years.·Colocation and Cloud Infrastructure . The Colocation and Cloud Infrastructure segment provides data centerinfrastructure solutions to a broad range of enterprise, carrier, content and cloud customers. The Company’s serviceswithin this segment include colocation, interconnection, cloud, hosting and managed services, such as security andremote hands offerings. Solutions range in size from single cabinet and server support to comprehensiveinternational outsourced IT infrastructure environments. The Company’s data centers also support a largecomponent of the Company’s networking equipment for the purpose of aggregating and distributing data, voice,Internet, and video traffic. The contract terms in this segment tend to range from two to five years.·Zayo Canada . The Zayo Canada segment is comprised of the recently acquired business of Allstream, Inc. andAllstream Fiber U.S. Inc. (together, “Allstream”). The services provided by this segment include the legacy darkfiber, network connectivity, cloud and colocation infrastructure, voice, unified communications, managed securityservices and small and medium businesses (“SMB”) of Allstream. Voice provides a full range of local voiceservices allowing business customers to complete telephone calls in their local exchange, as well as make longdistance, toll-free and related calls. Unified communications is the integration of real-time communication servicessuch as telephony (including IP telephony), instant messaging and video conferencing with non-real-timecommunication services such as integrated voicemail and e-mail. Unified communications provides a set ofproducts that give users the ability to work and communicate across multiple devices, media types and geographies.Managed security services provide proactive services and solutions designed to enable organizations to operate in anenvironment of constantly evolving threats from organized cyber-crime. The service provides real-time threatanalysis and correlation of information security threats, response and mitigations services, secure access to theinternet and the cloud, information risk and compliance services, and management of the IT securityenvelope. Zayo Canada provides services to over 26,000 customers in the SMB market while leveraging itsextensive network and product offerings. These include IP, internet, voice, IP trunking, cloud private branchexchange, collaboration services and unified communications. 36 Table of ContentsoOther . Our Other segment is primarily comprised of Zayo Professional Services (“ZPS”). ZPS provides networkand technical resources to customers who leverage our expertise in designing, acquiring and maintaining networks.Services are typically provided for a term of one year for a fixed recurring monthly fee in the case of network andon an hourly basis for technical resources (usage revenue).During Fiscal 2016, we changed our reportable segments. Previously, our operating segments were reported as PhysicalInfrastructure, which included our Dark Fiber, MIG and Zayo Colocation (“zColo”) Strategic Product Groups (“SPGs”), Cloudand Connectivity, which included our Waves, Sonet, Ethernet, IP and Cloud SPGs, and Other, which primarily includedZPS. The new structure has removed the zColo and Cloud SPGs out of the Physical Infrastructure and Cloud and Connectivityreporting segments, respectively, creating a new reportable segment named Colocation and Cloud Infrastructure. The Dark Fiberand MIG SPGs are now reported in the Dark Fiber Solutions operating segment, and the Ethernet, IP, Waves, and SONET SPGsare now reported in the Network Connectivity operating segment. In addition, following the acquisition of Allstream (asdescribed below), the Company created a fifth reportable segment, the Zayo Canada segment, to include the legacy products andservice offerings of that recently acquired entity. All prior period segment level financial and operating metrics included in thisAnnual Report have been recast to conform to the current period presentation for comparability.Factors Affecting Our Results of OperationsBusiness AcquisitionsWe were founded in 2007 with the investment thesis of building a bandwidth infrastructure platform to take advantage ofthe favorable Internet, data, and wireless growth trends driving the on-going demand for bandwidth infrastructure, and to be anactive participant in the consolidation of the industry. These trends have continued in the years since our founding, despitevolatile economic conditions, and we believe that we are well positioned to continue to capitalize on those trends. We have built asignificant portion of our network and service offerings through 38 acquisitions to date.As a result of the growth of our business from these acquisitions, and capital expenditures and the increased debt used tofund those investing activities, our results of operations for the respective periods presented and discussed herein are notcomparable.Recent Significant AcquisitionsClearviewOn April 1, 2016, we acquired 100% of the equity interest in Clearview International, LLC, a Texas based colocation andcloud infrastructure services provider, for cash consideration of $18.3 million. The acquisition was funded with cash on hand andwas considered an asset purchase for tax purposes.The acquisition consisted of two Texas data centers. The data centers, located at 6606 LBJ Freeway in Dallas, Texas and 700Austin Avenue in Waco, Texas, added approximately 30,000 square feet of colocation space, as well as a robust set of hybridcloud infrastructure services that complement our global cloud capabilities. The results of the acquired Clearview business are included in our operating results beginning April 1, 2016.AllstreamOn January 15, 2016, we acquired 100% of the equity interest in Allstream, Inc. and Allstream Fiber U.S. Inc. for cashconsideration of CAD $422.9 million (or $297.6 million), net of cash acquired, subject to certain post-closing adjustments. Theconsideration paid is net of CAD $42.1 million (or $29.6 million) of working capital and other liabilities assumed by us in theacquisition. The acquisition was funded with an incremental borrowing under our Term Loan Facility (as defined below) and wasconsidered a stock purchase for tax purposes.The acquisition adds more than 18,000 route miles to our fiber network, including 12,500 miles of long-haul fiberconnecting all major Canadian markets and 5,500 route miles of metro fiber network connecting approximately 3,300 on-netbuildings concentrated in Canada’s top five metropolitan markets.37 Table of ContentsThe operating results of the acquired Allstream business are included in our operating results beginning January 15, 2016.ViatelOn December 31, 2015, we acquired 100% of the interest in Viatel Infrastructure Europe Ltd, Viatel (UK) Limited, ViatelFrance SAS, Viatel Deutschland GmbH and Viatel Nederland BV (collectively “Viatel”) for cash consideration of €94.2 million(or $102.7 million), net of cash acquired. The final purchase consideration is subject to certain post-closing adjustments. Theacquisition was funded with cash on hand. €5.0 million (or $5.5 million) of the purchase consideration is currently held inescrow pending expiration of the indemnification adjustment period. The acquisition was considered a stock purchase for taxpurposes.The Viatel acquisition provides us with Pan-European intercity and metro fiber capability via a 8,400 kilometer fibernetwork across eight countries. The transaction added 12 new metro networks, seven data centers and connectivity to 81 on-netbuildings. Two wholly-owned subsea cable systems provide connectivity on two of Europe’s key routes – London-Amsterdamand London-Paris.The operating results of the acquired Viatel business are included in our results beginning January 1, 2016.Dallas Data CenterOn December 31, 2015, the Company acquired a 36,000 square foot data center located in Dallas, Texas for cashconsideration of $16.6 million. The acquisition was funded with cash on hand and was considered an asset purchase for taxpurposes.The operating results of the acquired Dallas Data Center business are included in our results beginning January 1, 2016.Latisys Holdings, LLCOn February 23, 2015, we acquired all of the equity interest of the subsidiaries of Latisys Holdings, LLC (“Latisys”), acolocation and infrastructure as a service (“Iaas”) provider for a price of $677.8 million, net of cash acquired. The Latisysacquisition was funded with the proceeds of our January 2015 Notes Offering (as defined below). The acquisition was considereda stock purchase for tax purposes.The Latisys acquisition added colocation and IaaS services through eight data centers across five markets in NorthernVirginia, Chicago, Denver, Orange County and London. The acquired data centers currently total over 185,000 square feet ofbillable space and 33 megawatts of critical power.The results of the acquired Latisys business are included in our operating results beginning February 23, 2015.38 Table of ContentsSummary of Business AcquisitionsThe table below summarizes the dates and purchase prices (which are net of cash acquired and include assumption of debtand capital leases) of all acquisitions and asset purchases through June 30, 2016. Acquisition Date Acquisition Cost (in millions)Memphis Networx July 31, 2007 $9.2PPL Telecom August 24,2007 46.3Indiana Fiber Works September 28, 2007 22.6Onvoy November 7, 2007 70.0Voicepipe November 7, 2007 2.8Citynet Fiber Networks February 15, 2008 99.2Northwest Telephone May 30, 2008 5.2CenturyTel Tri-State Markets July 22, 2008 2.7Columbia Fiber Solutions September 30, 2008 12.1CityNet Holdings Assets September 30, 2008 3.4Adesta Assets September 30, 2008 6.4Northwest Telephone California May 26, 2009 0.0FiberNet September 9, 2009 96.6AGL Networks July 1, 2010 73.7Dolphini Assets September 20, 2010 0.2American Fiber Systems October 1, 2010 114.1360networks December 1, 2011 317.9MarquisNet December 31, 2011 13.6Arialink May 1 2012 17.1AboveNet July 2, 2012 2,210.0FiberGate August 31, 2012 118.3USCarrier October 1, 2012 16.1FTS December 14, 2012 109.7Litecast December 31, 2012 22.2Core NAP May 31, 2013 7.1Corelink August 1, 2013 1.9Access October 1, 2013 40.1FiberLink October 2, 2013 43.1CoreXchange March 4, 2014 17.2Geo May 16, 2014 292.3Neo July 1, 2014 73.9Colo Facilities Atlanta July 1, 2014 51.9IdeaTek Systems January 1, 2015 52.7Latisys February 23, 2015 677.8Viatel December 31, 2015 102.7Stream Dallas Data Center December 31, 2015 16.6Allstream January 15, 2016 297.6Clearview April 1, 2016 18.3Less portion allocated to the discontinued operations of Onvoy, LLC (62.3)Total $5,020.3 We completed each of the acquisitions described above, with the exception of Voicepipe and Corelink, with cash raisedthrough combinations of equity issuances and the incurrence of debt. We acquired Voicepipe from certain existing CII equityholders in exchange for CII preferred units, and we acquired Corelink with a combination of cash and CII preferred units.39 Table of ContentsSpin-Off of BusinessIn connection with certain business combinations, we have acquired assets and liabilities that support products outside ofour primary focus of providing bandwidth infrastructure services. On June 13, 2014, we spun off all of our equity interest inOnvoy, LLC (“OVS”), a business that provides voice and managed services, by a non-cash distribution to CII. The results ofoperations of OVS are presented as discontinued operations. See Note 4— Spin-off of Business to our consolidated financialstatements.During Fiscal 2014, the results of the operations of OVS are presented in a single caption entitled, “Earnings fromdiscontinued operations, net of income taxes” on our consolidated statements of operations. All discussions contained in this“Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” relate only to our results ofoperations from continuing operations.Substantial IndebtednessTerm Loan Facility due 2021 and Revolving Credit FacilityOn May 6, 2015, ZGL and Zayo Capital, Inc. (“Zayo Capital”) entered into an Amendment and Restatement Agreementwhereby the Credit Agreement (the “Credit Agreement”) governing their $1,837.4 million senior secured term loan facility (the“Term Loan Facility”) and $450.0 million senior secured revolving credit facility (the “Revolver”) was amended and restated inits entirety. The amended and restated Credit Agreement extended the maturity date of the outstanding term loans under the TermLoan Facility to May 6, 2021. The interest rate margins applicable to the Term Loan Facility were decreased by 25 basis points toLIBOR plus 2.75% with a minimum LIBOR of 1.0%. In addition, the amended and restated Credit Agreement removed the fixedcharge coverage ratio covenant and replaced such covenant with a springing senior secured leverage ratio maintenancerequirement applicable only to the Revolver, increased certain lien and debt baskets, and removed certain covenants related tocollateral. The terms of the Term Loan Facility require us to make quarterly principal payments of $5.1 million plus an annualpayment of up to 50% of excess cash flow, as determined in accordance with the Credit Agreement (no such payment wasrequired during Fiscal 2015 or Fiscal 2016).The Revolver matures at the earliest of (i) April 17, 2020 and (ii) six months prior to the maturity date of the Term LoanFacility, subject to amendment thereof. The Credit Agreement also allows for letter of credit commitments of up to $50.0million. The Revolver is subject to a fee per annum of 0.25% to 0.375% (based on ZGL’s current leverage ratio) of the weighted-average unused capacity, and the undrawn amount of outstanding letters of credit backed by the Revolver are subject to a 0.25%fee per annum. Outstanding letters of credit backed by the Revolver accrue interest at a rate ranging from LIBOR plus 2.0% toLIBOR plus 3.0% per annum based upon ZGL’s leverage ratio.On January 15, 2016, ZGL and Zayo Capital entered into an Incremental Amendment (the “Incremental Amendment”) tothe Credit Agreement. Under the terms of the Incremental Amendment, the Term Loan Facility was increased by $400.0 million.The additional amounts borrowed bear interest at LIBOR plus 3.5% with a minimum LIBOR rate of 1.0%. The $400.0 millionadd-on was priced at 99.0% (the “Term Loan Proceeds”). The issue discount of $4.8 million on the Incremental Amendment isbeing accreted to interest expense over the term of the Term Loan Facility under the effective interest method. No other terms ofthe Credit Agreement were amended. The Term Loan Proceeds were used to fund the Allstream acquisition (see Note 3 – Acquisitions to our consolidated financial statements ) and for general corporate purposes.On July 22, 2016, ZGL and Zayo Capital entered into a Repricing Amendment (the “Repricing Amendment”) to the CreditAgreement. Per the terms of the Amendment, the $361.0 million term loan tranche under the Credit Agreement was repriced atpar and will bear interest at a rate of LIBOR plus 2.75%, with a minimum LIBOR rate of 1.0%, which represented a downwardadjustment of 75 basis points. No other terms of the Credit Agreement were amended.The weighted average interest rates (including margins) on the Term Loan Facility were approximately 3.9% and 3.75% atJune 30, 2016 and 2015, respectively. Interest rates on the Revolver as of June 30, 2016 and 2015 were approximately 3.4% and3.0%, respectively.40 Table of ContentsAs of June 30, 2016, no amounts were outstanding under the Revolver. Standby letters of credit were outstanding in theamount of $7.9 million as of June 30, 2016, leaving $442.1 million available under the Revolver, subject to certain conditions.6.00% Senior Unsecured Notes Due 2023 and 6.375% Senior Unsecured Notes due 2025On January 23, 2015, ZGL and Zayo Capital (together, the “Issuers”) completed a private offering (the “January 2015Notes Offering”) of $700.0 million aggregate principal amount of 6.00% senior unsecured notes due in 2023 (the “2023Unsecured Notes”). On March 9, 2015, the Issuers completed a private offering of an additional $730.0 million aggregateprincipal amount of 2023 Unsecured Notes at a premium of 1% (the “March 2015 Notes Offering”, and together with the January2015 Notes Offering, the “2023 Notes Offerings”) resulting in aggregate gross proceeds for the 2023 Unsecured Notes of$1,437.3 million. The issue premium of $7.3 million on the March 2015 Notes Offering is being accreted against interest expenseover the term of the 2023 Unsecured Notes under the effective interest method. The 2023 Unsecured Notes bear interest at therate of 6.00% per year, which is payable on April 1 and October 1 of each year, beginning on October 1, 2015. The 2023Unsecured Notes will mature on April 1, 2023. The net proceeds from the January 2015 Notes Offering were used to fund theLatisys acquisition (see Note 3 – Acquisitions to our consolidated financial statements). The net proceeds from the March 2015Notes Offering were used to redeem the remaining $675.0 million of the Issuers’ then outstanding 2020 Secured Notes (asdefined below) at a price of 105.75% (the “Second Note Redemption”). As part of the Second Note Redemption, we recorded anearly redemption call premium of $38.8 million. The call premium has been recorded as a loss on extinguishment of debt on theconsolidated statement of operations for the year ended June 30, 2015.On May 6, 2015, the Issuers completed a private offering (the “Initial 2025 Notes Offering”) of $350.0 million aggregateprincipal amount of 6.375% senior unsecured notes due in 2025 (the “2025 Unsecured Notes”). On April 14, 2016, the Issuersclosed a private offering (the “Additional 2025 Notes Offering”) of an additional $550.0 million of the 2025 Unsecured Notespriced at 97.1%, resulting in aggregate gross proceeds for the 2025 Unsecured Notes of $534.1 million. The issue discount of$15.9 million on the Additional 2025 Notes Offering is being accreted to interest expense over the term of the 2025 UnsecuredNotes using the effective interest method. Interest on the 2025 Unsecured Notes is payable on May 15 and November 15 of eachyear, beginning on November 15, 2015. The 2025 Unsecured Notes will mature on May 15, 2025. The net proceeds from theInitial 2025 Notes Offering were used to repay $344.5 million of our Term Loan Facility. As a result of the repayment, werecorded a loss on extinguishment of debt of $8.4 million. The net proceeds of the Additional 2025 Notes Offering plus cash onhand were used to (i) repay approximately $196.0 million of borrowings under the Term Loan Facility, and (ii) redeem the $325.6million of remaining 2020 Unsecured Notes (as defined below), including the required make-whole premium and accruedinterest. Per the terms of the Credit Agreement, the $196.0 million prepayment on the Term Loan Facility relieves the Companyof its obligation to make quarterly principal payments on the Term Loan Facility until the cumulative amount of such relievedpayments exceeds $196.0 million. As a result of the redemption, we recorded a $2.1 million loss on extinguishment of debtassociated with the write-off of unamortized debt discount on the Term Loan Facility. The loss on extinguishment of debt hasbeen recorded on the consolidated statement of operations for the year ended June 30, 2016.10.125% Senior Unsecured Notes due 2020 and 8.125% Senior Secured Notes due 2020On July 2, 2012, the Issuers issued $500.0 million aggregate principal amount of 10.125% senior unsecured notes due 2020(the “2020 Unsecured Notes”) and $750.0 million aggregate principal amount of 8.125% senior secured notes due 2020 (the“2020 Secured Notes”). On December 15, 2014, the Issuers redeemed $174.4 million of their then outstanding 2020 UnsecuredNotes at a price of 110.125% and $75.0 million of their then outstanding 2020 Secured Notes at a price of 108.125% (the “PartialNotes Redemption”). As part of the Partial Notes Redemption, we paid an early redemption call premium of $23.8 million, whichwas recorded as a loss on extinguishment of debt on the consolidated statements of operations during the year ended June 30,2015.Substantial Capital ExpendituresDuring Fiscal 2016, 2015, and 2014, we invested $704.1 million, $530.4 million, and $360.8 million, respectively, incapital expenditures primarily to expand our fiber network to support new customer contracts. We expect to continue to makesignificant capital expenditures in future periods.41 Table of ContentsBackground for Review of Our Results of OperationsRevenueOur revenue is comprised predominately of monthly recurring revenue (“MRR”). MRR is related to an ongoing service thatis generally fixed in price and paid by the customer on a monthly basis. We also report monthly amortized revenue (“MAR”),which represents the amortization of previously collected upfront charges to customers. Upfront charges are typically related toIRUs structured as pre-payments rather than monthly recurring payments (though we structure IRUs as both prepaid andrecurring, largely dependent on the customers’ preference) and installation fees. The last category of revenue we report is otherrevenue. Other revenue includes credits and adjustments, termination revenue, construction services, and equipment sales.Our consolidated reported revenue in any given period is a function of our beginning revenue under contract and the impactof organic growth and acquisition activity. Our organic activity is driven by net new sales (“bookings”), gross installed revenue(“installs”) and churn processed (“churn”) as further described below.Net New Sales . Net new sales (“bookings”) represent the dollar amount of orders, to be recorded as MRR and MAR uponinstallation, in a period that have been signed by the customer and accepted by our service delivery organization. The dollarvalue of bookings is equal to the monthly recurring price that the customer will pay for the services and/or the monthlyamortized amount of the revenue that we will recognize for those services. To the extent a booking is cancelled by thecustomer prior to it being installed, it is subtracted from the total bookings number in the period that it is cancelled.Bookings do not immediately impact revenue until they are installed (gross installed revenue).Gross Installed Revenue . Installs are the amount of MRR and MAR for services that have been installed, tested, acceptedby the customer, and have been recognized in revenue during a given period. Installs include new services, price increases,and upgrades.Churn Processed . Churn is any negative change to MRR and MAR. Churn includes disconnects, negative price changes,and disconnects associated with upgrades or replacement services. For each period presented, disconnects associated withattrition and upgrades are the drivers of churn, accounting for more than 80% of negative changes in MRR and MAR whileprice changes account for less than 20%. Monthly churn is also presented as a percentage of MRR and MAR (“churnpercentage”).Given the size and amount of acquisitions we have completed, we have estimated the revenue growth rate associated withour organic activity in each period reported. Our estimated organic growth rate is calculated by adding an estimate of the acquiredcompanies’ revenue for the reporting period prior to the date of inclusion in our results of operations, and then calculating thegrowth rate between the two reported periods. The estimate of acquired annual revenue is based on the acquired companies’revenues for the most recent quarter prior to close (including estimated purchase accounting adjustments) multiplied by four. If, incalculating our estimated organic growth rates, we were to use the actual revenue results for the four quarters preceding theclosing of each of our acquisitions, our estimated organic growth rates would be higher than the estimated organic growth ratespresented. If we were to use acquired annualized revenue, calculated by taking each acquired company’s revenues for the mostrecent quarter prior to the closing of such acquisition and multiplying by four, our estimated organic growth rates would be lowerthan the estimated organic growth rates presented.We have foreign subsidiaries that enter into contracts with customers and vendors in currencies other than the United StatesDollar (“USD”) – principally the British Pound Sterling (“GBP”) and Canadian Dollar (“CAD”) and to a lesser extent the Euroand Swiss Franc (“CHF”). Changes in foreign currency exchange rates impact our revenue and expenses each period. Thecomparisons excluding the impact of foreign currency exchange rates assume exchange rates remained constant at thecomparative period rate.Operating Costs and ExpensesOur operating costs and expenses consist of network expense (“Netex”), compensation and benefits, network operationsexpense (“Netops”), stock-based compensation expense, other expenses, and depreciation and amortization.42 Table of ContentsNetex consists of third-party network service costs resulting from our leasing of certain network facilities, primarily leasesof circuits and dark fiber, from carriers to augment our owned infrastructure, for which we are generally billed a fixed monthlyfee. Netex also includes colocation facility costs for rent and license fees paid to the landlords of the buildings in which ourcolocation business operates, along with the utility costs to power those facilities. While increases in demand for our services willdrive additional operating costs in our business, consistent with our strategy of leveraging our owned infrastructure assets, weexpect to primarily utilize our existing network infrastructure or build new network infrastructure to meet the demand. In limitedcircumstances, we will augment our network with additional circuits or services from third-party providers. Third-party networkservice costs include the upfront cost of the initial installation of such circuits. Such costs are included in operating costs in ourconsolidated statements of operations over the respective service period.Compensation and benefits expenses include salaries, wages, incentive compensation and benefits. Employee-related coststhat are directly associated with network construction, service installations (and development of business support systems) arecapitalized and amortized to operating costs and expenses. Compensation and benefits expenses related to the departmentsattributed to generating revenue are included in our operating costs line item while compensation and benefits expenses related tothe sales, product, and corporate departments are included in our selling, general and administrative expenses line item of ourconsolidated statements of operations.Netops expense includes all of the non-personnel related expenses of operating and maintaining our network infrastructure,including contracted maintenance fees, right-of-way costs, rent for cellular towers and other places where fiber is located, poleattachment fees, and relocation expenses. Such costs are included in operating costs in our consolidated statements of operations.Prior to our IPO, our stock-based compensation expense contained two components, CII common unit awards classified asliabilities and, to a lesser extent, CII preferred unit awards classified as equity. For the CII common units granted to employeesand directors, we recognized an expense equal to the fair value of all of those common units that vest during the period plus thechange in fair value of previously vested units, and recorded a liability in respect of those amounts. Following the IPO, our stock-based compensation expense contains three components: previously granted CII common unit awards and CII preferred unitawards and restricted stock unit awards made under our new equity compensation program. For previously granted CII commonunit awards, following the IPO, we amortize the offering date fair value of those units (including unvested units) over the vestingperiod based on expected settlement behavior with a corresponding adjustment to equity, as the awards no longer have cashsettlement features. For previously granted CII preferred units, we use the straight line method, over the vesting period, toamortize the fair value of those units, as determined on the date of grant. We recognize stock-based compensation expense forrestricted stock unit awards granted to employees, members of management, and directors based on their estimated grant date fairvalue on a straight line basis over the requisite service period, as adjusted for an estimate of forfeitures. These restricted stock unitawards are primarily equity classified, except certain awards that have not yet been granted to employees. Following our IPO,subsequent changes in the fair value of the CII preferred and common units and restricted stock unit awards granted generally donot affect the amount of expense we recognize.Stock-based compensation expense is included, based on the responsibilities of the awarded recipient, in either ouroperating costs or selling, general and administrative expenses in our consolidated statements of operations.Other expenses include expenses such as property tax, franchise fees, colocation facility maintenance, travel, office expenseand other administrative costs. Other expenses are included in both operating costs and selling, general and administrativeexpenses depending on their relationship to generating revenue or association with sales and administration.Transaction costs include expenses associated with professional services (i.e. legal, accounting, regulatory, etc.) rendered inconnection with acquisitions or disposals (including spin-offs), travel expense, severance expense incurred on the date ofacquisition or disposal, and other direct expenses incurred that are associated with signed and/or closed acquisitions or disposals.Transaction costs are included in selling, general and administrative expenses in our consolidated statements of operations.43 Table of ContentsResults of OperationsRefer to “Item 6. Selected Financial Data” for additional financial information for the indicated periods.Year Ended June 30, 2016 Compared to the Year Ended June 30, 2015Revenue For the Year Ended June 30, 2016 2015 $ Variance % Variance (in millions) Segment and consolidated revenue: Dark Fiber Solutions $563.9 $525.9 $38.0 7%Network Connectivity 683.5 648.0 35.5 5%Colocation and Cloud Infrastructure 240.7 150.0 90.7 60%Zayo Canada 213.3 — 213.3 *Other 20.3 23.2 (2.9) (13)%Consolidated $1,721.7 $1,347.1 $374.6 28%* Not meaningfulOur total revenue increased by $374.6 million, or 28%, to $1,721.7 million for the year ended June 30, 2016, from $1,347.1million for the year ended June 30, 2015. The increase in revenue was driven by our Fiscal 2015 and 2016 acquisitions as well asorganic growth. We estimate that the period-over-period organic growth was approximately 4%. Our organic growth was driven by installsthat exceeded churn over the course of both periods, resulting from continued strong demand for bandwidth infrastructureservices broadly across our service territory and customer verticals. Additional underlying revenue drivers included: ·Bookings increased period-over-period from $24.8 million to $26.6 million in combined MRR and MAR. The totalcontract value associated with bookings for the year ended June 30, 2016 was approximately $1,614.0 million. ·During the year ended June 30, 2016, the Company recognized net installs of $9.0 million as compared to $7.2 millionduring the year ended June 30, 2015. ·Monthly churn percentage between the two periods decreased to 1.1% from 1.2%. We estimate that the period-over-period acquisition-related revenue growth was approximately 24%. The average exchange rate between the USD and GBP weakened by 5.8% during the year ended June 30, 2016. Theaverage exchange rate between the USD and Euro weakened by 7.7%. Normalizing our revenue to exclude the impact of foreigncurrency exchange rate fluctuations, we estimate that revenue would have increased between the year ended June 30, 2016 andJune 30, 2015 by an additional $6.3 million for a total revenue increase of $380.9 million, or 28%. Dark Fiber Solutions . Revenue from our Dark Fiber Solutions segment increased by $38.0 million, or 7%, to $563.9million from $525.9 million, for the years ended June 30, 2016 and 2015, respectively. The increase was a result of bothacquisition related and organic growth. Dark Fiber is the largest Strategic Product Group within the segment and benefited from continued growth in infrastructuredemand. Our Mobile Infrastructure products also contributed to the segment’s growth. Bookings of MRR and MAR for the yearended June 30, 2016 were $8.5 million (with a total contract value of approximately $1,064.2 million), a decrease from the $9.4million in bookings for the same period in the prior year. Gross installs were $7.844 Table of Contentsmillion for Fiscal 2016, compared to $7.4 million for Fiscal 2015. The monthly churn decreased from 0.7% to 0.6%, resulting intotal churn processed of $3.2 million compared to $3.6 million in the same period in the prior year. Network Connectivity . Revenue from our Network Connectivity segment increased by $35.5 million, or 5%, to $683.5million from $648.0 million for the years ended June 30, 2016 and 2015, respectively. The increase was a result of bothacquisition-related and organic growth. Growth was strongest in the segment’s Waves SPG, driven by customer demand and increased effectiveness in marketingthese products, including price concessions that were proactively offered in exchange for customer contract extensions in Fiscal2015. SONET is a legacy product, and its revenue declined between the two periods, consistent with our expectations. Bookings of MRR and MAR increased from $12.5 million to $13.7 million between the two comparative periods, with atotal contract value of approximately $418.3 million for the year ended June 30, 2016. Gross installs were $13.4 million for theyear ended June 30, 2016, compared to $12.3 million in the prior year. The monthly churn percentage decreased from 1.6% to1.5%, resulting in total churn processed remaining consistent at $9.9 million year-over-year. Colocation and Cloud Infrastructure. Revenue from our Colocation and Cloud Infrastructure segment increased by $90.7million, or 60%, to $240.7 million from $150.0 million for the years ended June 30, 2016 and 2015. The increase was a result ofboth acquisition related and organic growth. zColo is the largest SPG within the segment and benefited from continued growth in infrastructure demand. Bookings ofMRR and MAR increased from $2.9 million to $4.2 million between the two comparative periods, with a total contract value ofapproximately $129.5 million for the year ended June 30, 2016. Gross installs remained consistent at $3.3 million for Fiscal 2016and Fiscal 2015. The monthly churn decreased from 1.2% to 1.0%, resulting in total churn processed of $2.3 million compared to$1.7 million in the same period in the prior year. Zayo Canada. Revenue from our Zayo Canada segment was $213.3 million for the year ended June 30, 2016. Other . Revenue from our Other segment decreased by $2.9 million, or 13%, to $20.3 million from $23.2 million, for theyears ended June 30, 2016 and 2015, respectively. The decrease was the result of the non-recurring nature of revenue related tothe Other segment, which had slightly lower sales in Fiscal 2016 as compared to Fiscal 2015. The Other segment representedapproximately 1% of our total revenue during the year ended June 30, 2016. The following table reflects the stratification of our revenues during these periods. The substantial majority of our revenuecontinued to come from recurring payments from customers under contractual arrangements. For the Year Ended June 30, 2016 2015 (in millions) Monthly recurring revenue $1,546.0 90% $1,211.8 90%Amortization of deferred revenue 92.5 5% 72.1 5%Other revenue 83.2 5% 63.2 5%Total Revenue $1,721.7 100% $1,347.1 100% 45 Table of ContentsOperating Costs and Expenses For the Year Ended June 30, 2016 2015 $ Variance % Variance (in millions) Segment and consolidated operating costs and expenses: Dark Fiber Solutions $461.4 $479.3 $(17.9) (4)%Network Connectivity 540.5 536.5 4.0 1%Colocation and Cloud Infrastructure 248.3 140.7 107.6 76%Zayo Canada 213.0 — 213.0 *Other 18.2 21.6 (3.4) (16)%Consolidated $1,481.4 $1,178.1 $303.3 26%* Not meaningfulOur operating costs increased by $303.3 million, or 26% to $1,481.4 million for Fiscal 2016 from $1,178.1 million forFiscal 2015. The increase in consolidated operating costs was primarily due to increased costs as a result of Fiscal 2016 and Fiscal2015 acquisition related growth, and organic growth of our network , partially offset by a $44.8 million decrease in stock-basedcompensation. Dark Fiber Solutions . Dark Fiber Solutions operating costs decreased by $17.9 million, or 4%, to $461.4 million forFiscal 2016 from $479.3 million for Fiscal 2015. The decrease in operating costs and expenses was primarily a result of adecrease in stock-based compensation, partially offset by the timing of our Fiscal 2016 and Fiscal 2015 acquisitions andadditional costs associated with the organic growth of our network. Network Connectivity . Network Connectivity operating costs increased by $4.0 million, or 1%, to $540.5 million forFiscal 2016 from $536.5 million for Fiscal 2015. The increase in operating costs and expenses was primarily a result of the timingof our Fiscal 2016 and Fiscal 2015 acquisitions, partially offset by a decrease in stock-based compensation. Colocation and Cloud Infrastructure . Colocation and Cloud Infrastructure operating costs increased by $107.6 million,or 76%, to $248.3 million for Fiscal 2016 from $140.7 million for Fiscal 2015. The increase in operating costs and expenses wasprimarily a result of Fiscal 2016 and 2015 acquisitions and organic growth of our network. Zayo Canada. Zayo Canada operating costs were $213.0 million for the year ended June 30, 2016. Other. Other operating costs decreased by $3.4 million, or 16%, to $18.2 million for Fiscal 2016 from $21.6 million forFiscal 2015 as a result of decreased revenue from ZPS. The table below sets forth the components of our operating costs and expenses during the years ended June 30, 2016 and2015: For the Year Ended June 30, 2016 2015 $ Variance % Variance (in millions) Netex $283.0 $178.3 $104.7 59%Compensation and benefits expenses 216.8 158.6 58.2 37%Network operations expense 194.5 152.5 42.0 28%Other expenses 93.4 75.6 17.8 24%Transaction costs 21.5 6.2 15.3 *Stock-based compensation 155.9 200.7 (44.8) (22)%Depreciation and Amortization 516.3 406.2 110.1 27%Total operating costs and expenses $1,481.4 $1,178.1 $303.3 26%* Not meaningful46 Table of ContentsNetex . Our Netex increased by $104.7 million, or 59%, to $283.0 million for Fiscal 2016 from $178.3 million for Fiscal2015. The increase in Netex was primarily due to increased facility costs related to the colocation acquisitions completed in Fiscal2016 and Fiscal 2015, partially offset by cost savings, as planned network related synergies were realized. Compensation and Benefits Expenses . Compensation and benefits expenses increased by $58.2 million, or 37%, to$216.8 million for Fiscal 2016 from $158.6 million for Fiscal 2015. The increase in compensation and benefits reflected the increase in headcount during Fiscal 2016 to support our growingbusiness, including certain employees retained from businesses acquired since June 30, 2015 . Headcount as of the end of the respective periods was: June 30, June 30, 2016 2015Dark Fiber Solutions 797 793Network Connectivity 769 682Colocation and Cloud Infrastructure 373 330Zayo Canada 1,258 —Other 27 28Total 3,224 1,833 Network Operations Expenses . Network operations expenses increased by $42.0 million, or 28%, to $194.5 million forFiscal 2016 from $152.5 million for Fiscal 2015. The increase principally reflected the growth of our network assets and therelated expenses of operating that expanded network. Our total network route miles increased approximately 32% to 112,660miles at June 30, 2016 from 85,644 miles at June 30, 2015. Other Expenses . Other expenses increased by $17.8 million, or 24%, to $93.4 million for Fiscal 2016, from $75.6 millionfor Fiscal 2015. The increase was primarily the result of additional expenses attributable to our Fiscal 2015 and 2016 acquisitions. Transaction Costs . Transaction costs increased by $15.3 million to $21.5 million for Fiscal 2016 from $6.2 million forFiscal 2015. The increase was due to higher transaction-related costs associated with our Fiscal 2016 acquisitions. Stock-Based Compensation . Stock-based compensation expense decreased by $44.8 million, or 22%, to $155.9 millionfor Fiscal 2016 from $200.7 million for Fiscal 2015. Prior to our IPO, we recognized changes in the fair value of the CII common units through increases or decreases in stock-based compensation expense and adjustments to the related stock-based compensation liability. This liability was impacted bychanges in the estimated value of the common units, number of vested common units, and distributions made to holders of thecommon units. In connection with the IPO, we re-measured the fair value of the common units at the offering date based onvarious projections involving future stock performance, vesting and forfeitures. The fair value of unvested common units on theoffering date is recognized as stock-based compensation expense ratably over the remaining vesting period. The fair value of thevested common units on the offering date was recorded as incremental stock based compensation during Fiscal 2015, which is theprimary driver of the $44.8 million decrease. Depreciation and Amortization Depreciation and amortization expense increased by $110.1 million, or 27%, to $516.3 million for Fiscal 2016 from $406.2million for Fiscal 2015. The increase was primarily the result of depreciation related to capital expenditures since June 30, 2015and acquisition-related growth. 47 Table of ContentsTotal Other Expense, Net The table below sets forth the components of our total other expense, net for the years ended June 30, 2016 and 2015. For the Year Ended June 30, 2016 2015 $ Variance % Variance (in millions) Interest expense $(220.1) $(214.0) $(6.1) (3)%Loss on extinguishment of debt (33.8) (94.3) 60.5 *Foreign currency loss on intercompany loans (53.8) (24.4) (29.4) *Other expense, net (0.3) (0.4) 0.1 *Total other expenses, net $(308.0) $(333.1) $25.1 8%* Not meaningful Interest expense . Interest expense increased by $6.1 million, or 3%, to $220.1 million from $214.0 million for the yearsended June 30, 2016 and 2015, respectively. The increase was primarily a result of increased indebtedness during Fiscal 2016,partially offset by reduced interest rates on our outstanding indebtedness as a result of our Fiscal 2016 debt transactions. Loss on extinguishment of debt . Loss on extinguishment of debt decreased to a $33.8 million loss for the year ended June30, 2016 from a loss of $94.3 million for the year ended June 30, 2015. During Fiscal 2016, we redeemed the remaining $325.6million 2020 Unsecured Notes and repaid $196.0 million on our Term Loan Facility. As part of the redemption and early paymenton the Term Loan Facility, we paid early redemption call premiums totaling $20.3 million and recorded an expense of $13.5million related to unamortized debt issuance costs and discounts associated with the extinguished indebtedness. These expenseswere recorded as a loss on extinguishment of debt during Fiscal 2016.During Fiscal 2015, we redeemed our $750.0 million 2020 Secured Notes and a portion of our 2020 Unsecured Notes andrepaid $344.5 million on our Term Loan Facility. As part of the redemptions and early payment on the Term Loan Facility, wepaid early redemption call premiums totaling $62.6 million and recorded an expense of $31.7 million related to unamortized debtissuance costs and discounts associated with the extinguished indebtedness. These expenses were recorded as a loss onextinguishment of debt during Fiscal 2015. Foreign currency loss on intercompany loans . Foreign currency loss on intercompany loans increased to a $53.8 millionloss for Fiscal 2016 from a loss of $24.4 million for Fiscal 2015. This non-cash loss was driven by the strengthening of the USDagainst the GBP and the related impact on intercompany loans entered into by foreign subsidiaries in their functional currency. (Benefit)/provision for Income Taxes Income tax expense increased over the prior year by $17.3 million, to an income tax expense of $8.5 million for Fiscal2016, from an income tax benefit of $(8.8) million for Fiscal 2015. Our provision for income taxes included both the currentprovision and a provision for deferred income tax expense resulting from timing differences between tax and financial reportingaccounting bases. In addition, as a result of our stock-based compensation related to our CII common and preferred units andcertain transaction costs not being deductible for income tax purposes, our effective tax rate was higher than the statutory rate.48 Table of ContentsThe following table reconciles an expected tax provision based on a statutory federal tax rate applied to our earnings beforeincome tax to our actual provision for income taxes: For the Year Ended June 30, 2016 2015 (in millions)Expected benefit at the statutory rate $(23.8) $(57.4)Increase/(decrease) due to: Non-deductible stock-based compensation 27.9 59.4State income taxes benefit, net of federal benefit (2.1) (7.4)Transactions costs not deductible for tax purposes 1.5 0.7Change in statutory tax rate (3.6) (2.2)Change in valuation allowance 2.8 —Foreign tax rate differential 2.7 0.6Other, net 3.1 (2.5)Provision/(benefit) for income taxes $8.5 $(8.8)Year Ended June 30, 2015 Compared to the Year Ended June 30, 2014Revenue For the Year Ended June 30, 2015 2014 $ Variance % Variance (in millions) Segment and consolidated revenue: Dark Fiber Solutions $525.9 $419.8 $106.1 25%Network Connectivity 648.0 606.2 41.8 7%Colocation and Cloud Infrastructure 150.0 75.6 74.4 98%Other 23.2 21.6 1.6 7%Consolidated $1,347.1 $1,123.2 $223.9 20%Our total revenue increased by $223.9 million, or 20%, to $1,347.1 million for the year ended June 30, 2015, from $1,123.2million for the year ended June 30, 2014. The increase in revenue was driven by our organic growth as well as Fiscal 2014 and2015 acquisitions.We estimate that the period-over-period organic growth was approximately 7%. Our organic growth was driven by installsthat exceeded churn over the course of both periods, resulting from continued strong demand for bandwidth infrastructureservices broadly across our service territory and customer verticals. Additional underlying revenue drivers included:·Bookings increased period-over-period from $21.8 million to $24.8 million in combined MRR and MAR. The totalcontract value associated with bookings for the year ended June 30, 2015 was approximately $1,849.9 million.·During the year ended June 30, 2015, the Company recognized net installs of $7.2 million as compared to $5.2 millionduring the year ended June 30, 2014.·Monthly churn percentage between the two periods decreased to 1.3% from 1.4% .We estimate that the period-over-period acquisition-related revenue growth was approximately 13%.The average exchange rate between the USD and GBP strengthened by 8.4% during the year ended June 30,2015. Normalizing our revenue to exclude the impact of foreign currency exchange rate fluctuations, we estimate that revenuewould have increased between the year ended June 30, 2015 and June 30, 2014 by an additional $2.2 million. 49 Table of ContentsDark Fiber Solutions . Revenue from our Dark Fiber Solutions segment increased by $106.1 million, or 25%, to $525.9million from $419.8 million, for the years ended June 30, 2015 and 2014, respectively. The increase was a result of both organicand acquisition related growth.Dark Fiber is the largest Strategic Product Group within the segment and benefited from continued growth in infrastructuredemand. Our FTT products also contributed to the segment ' s growth. Bookings of MRR and MAR for the year ended June 30,2015 were $9.4 million (with a total contract value of approximately $1,360.6 million), an increase from the $0.4 million inbookings for the same period in the prior year. Gross installs were $7.4 million for Fiscal 2015, compared to $6.7 million forFiscal 2014. The monthly churn percentage decreased from 0.8% to 0.7%, resulting in total churn processed of $3.6 millioncompared to $3.3 million in the same period in the prior year.Network Connectivity . Revenue from our Network Connectivity segment increased by $41.8 million, or 7%, to $648.0million from $606.2 million for the years ended June 30, 2015 and 2014, respectively. The increase was a result of both organicand acquisition related growth.Growth was strongest in the segment's Ethernet and IP Strategic Product Groups, driven by customer demand and increasedeffectiveness in marketing these products. Wavelength revenue growth was dampened by churn, including price concessions thatwere proactively offered in exchange for customer contract extensions. SONET is a legacy product, and its revenue declinedbetween the two periods, consistent with our expectations. Bookings of MRR and MAR increased from $11.1 million to $12.5million between the two comparative periods, with a total contract value of approximately $398.8 million for the year ended June30, 2015. Gross installs were $12.3 million for the year ended June 30, 2015, compared to $11.2 million in the prior year. Themonthly churn percentage decreased from 1.7% to 1.6%, resulting in total churn processed of $9.9 million compared to $10.1million in the same period in the prior year.Colocation and Cloud Infrastructure. Revenue from our Colocation and Cloud Infrastructure segment increased by$74.4 million, or 98%, to $150.0 million from $75.6 million for the years ended June 30, 2015 and 2014, respectively. Theincrease was a result of both organic and acquisition related growth.zColo is the largest SPG within the segment and benefited from continued growth in infrastructure demand. Bookings ofMRR and MAR increased from $1.6 million to $2.9 million between the two comparative periods, with a total contract value ofapproximately $89.0 million for the year ended June 30, 2015. Gross installs were $3.3 million for the year ended June 30, 2015,compared to $1.7 million in the prior year. The monthly churn percentage increased from 1.1% to 1.2%, resulting in total churnprocessed of $1.7 million compared to $0.9 million in the same period in the prior year.Other . Revenue from our Other segment increased by $1.6 million, or 7%, to $23.2 million from $21.6 million, for theyears ended June 30, 2015 and 2014, respectively. The Other segment represented approximately 2% of our total revenue duringthe year ended June 30, 2015.The following table reflects the stratification of our revenues during these periods. The substantial majority of our revenuecontinued to come from recurring payments from customers under contractual arrangements. For the Year Ended June 30, 2015 2014 (in millions) Monthly recurring revenue $1,211.8 90% $1,030.1 92%Amortization of deferred revenue 72.1 5% 55.6 5%Other revenue 63.2 5% 37.5 3%Total Revenue $1,347.1 100% $1,123.2 100% 50 Table of ContentsOperating Costs and Expenses For the Year Ended June 30, 2015 2014 $ Variance % Variance (in millions) Segment and consolidated operating costs and expenses: Dark Fiber Solutions $479.3 $474.0 $5.3 1%Network Connectivity 536.5 502.2 34.3 7%Colocation and Cloud Infrastructure 140.7 67.1 73.6 110%Other 21.6 23.8 (2.2) (9)%Consolidated $1,178.1 $1,067.1 $111.0 10%Our operating costs increased by $111.0 million, or 10% to $1,178.1 million for Fiscal 2015 from $1,067.1 million forFiscal 2014. The increase in consolidated operating costs was primarily due to increased costs as a result of Fiscal 2015 and Fiscal2014 acquisition related growth, and organic growth of our network , partially offset by a $53.0 million decrease in stock-basedcompensation.Dark Fiber Solutions . Dark Fiber Solutions operating costs increased by $5.3 million, or 1%, to $479.3 million for Fiscal2015 from $474.0 million for Fiscal 2014. The increase in operating costs and expenses was primarily a result of the timing of ourFiscal 2015 and Fiscal 2014 acquisitions and additional costs associated with the organic growth of our network partially offsetby a decrease in stock-based compensation.Network Connectivity . Network Connectivity operating costs increased by $34.3 million, or 7%, to $536.5 million forFiscal 2015 from $502.2 million for Fiscal 2014. The increase in operating costs and expenses was primarily a result of the timingof our Fiscal 2015 and Fiscal 2014 acquisitions.Colocation and Cloud Infrastructure. Colocation and Cloud Infrastructure operating costs increased by $73.6 million, or110%, to $140.7 million for Fiscal 2015 from $67.1 million for Fiscal 2014. The increase in operating costs and expenses wasprimarily a result of the timing of our Fiscal 2015 and Fiscal 2014 acquisitions.Other. Other operating costs decreased by $2.2 million, or 9%, to $21.6 million for Fiscal 2015 from $23.8 million forFiscal 2014 as a result of decreased revenue from ZPS.The table below sets forth the components of our operating costs and expenses during the years ended June 30, 2015 and2014: For the Year Ended June 30, 2015 2014 $ Variance % Variance (in millions) Netex $178.3 $150.4 $27.9 19%Compensation and benefits expenses 158.6 126.3 32.3 26%Network operations expense 152.5 131.4 21.1 16%Other expenses 75.6 61.8 13.8 22%Transaction costs 6.2 5.3 0.9 17%Stock-based compensation 200.7 253.7 (53.0) (21)%Depreciation and Amortization 406.2 338.2 68.0 20%Total operating costs and expenses $1,178.1 $1,067.1 $111.0 10%Netex . Our Netex increased by $27.9 million, or 19%, to $178.3 million for Fiscal 2015 from $150.4 million for Fiscal2014. The increase in Netex was primarily due to increased facility costs related to the colocation acquisitions completed in Fiscal2015 and Fiscal 2014, partially offset by cost savings, as planned network related synergies were realized. Netex as a percentageof total revenue remained at 13% for Fiscal 2015 and 2014.Compensation and Benefits Expenses . Compensation and benefits expenses increased by $32.3 million, or 26%, to $158.6million for Fiscal 2015 from $126.3 million for Fiscal 2014.51 Table of ContentsThe increase in compensation and benefits reflected the increase in headcount during Fiscal 2015 to support our growingbusiness, including certain employees retained from businesses acquired since June 30, 2014, and employer matching ofemployee 401(k) contributions beginning in the fourth quarter of Fiscal 2014.Headcount as of the end of the respective periods was: June 30, June 30, 2015 2014Dark Fiber Solutions 769 751Network Connectivity 650 623Colocation and Cloud Infrastructure 318 110Other 96 29Total 1,833 1,513Network Operations Expenses . Network operations expenses increased by $21.1 million, or 16%, to $152.5 million forFiscal 2015 from $131.4 million for Fiscal 2014. The increase principally reflected the growth of our network assets and therelated expenses of operating that expanded network. Our total network route miles increased approximately 6% to 85,644 milesat June 30, 2015 from 80,861 miles at June 30, 2014.Other Expenses . Other expenses increased by $13.8 million, or 22%, to $75.6 million for Fiscal 2015, from $61.8 millionFiscal 2014. The increase was primarily the result of additional expenses attributable to our Fiscal 2014 and 2015 acquisitions.Transaction Costs . Transaction costs increased by $0.9 million, or 17%, to $6.2 million for Fiscal 2015 from $5.3 millionfor Fiscal 2014. The increase was due to higher transaction-related costs associated with our Fiscal 2015 acquisitions.Stock-Based Compensation . Stock-based compensation expense decreased by $53.0 million, or 21%, to $200.7 million forFiscal 2015 from $253.7 million for Fiscal 2014.Prior to our IPO, we recognized changes in the fair value of the CII common units through increases or decreases in stock-based compensation expense and adjustments to the related stock-based compensation liability. This liability was impacted bychanges in the estimated value of the common units, number of vested common units, and distributions made to holders of thecommon units. In connection with the IPO, we re-measured the fair value of the common units at the offering date based onvarious projections involving future stock performance, vesting and forfeitures. The fair value of unvested common units on theoffering date is recognized as stock-based compensation expense ratably over the remaining vesting period. For restricted stockunit awards, expense is recognized based on the estimated fair value of the units awarded over the requisite service period. Theestimated fair value of the restricted stock unit awards is impacted by various factors, including market and performance-basedtargets, expectations regarding future stock performance, the measurement or performance period, and forfeiture rates. Thehigher Fiscal 2014 stock-based compensation expense is primarily driven by increases to the estimated fair value of our liabilityclassified common unit awards.Depreciation and AmortizationDepreciation and amortization expense increased by $68.0 million, or 20%, to $406.2 million for Fiscal 2015 from $338.2million for Fiscal 2014. The increase was primarily the result of depreciation related to capital expenditures since June 30, 2014and acquisition-related growth.52 Table of ContentsTotal Other Expense, NetThe table below sets forth the components of our total other expense, net for the years ended June 30, 2015 and 2014. For the Year Ended June 30, 2015 2014 $ Variance % Variance (in millions) Interest expense $(214.0) $(203.5) $(10.5) (5)%Loss on extinguishment of debt (94.3) (1.9) (92.4) *Foreign currency (loss)/gain on intercompany loans (24.4) 4.7 (29.1) *Other expense, net (0.4) 0.3 (0.7) *Total other expenses, net $(333.1) $(200.4) $(132.7) (66)%* Not meaningfulInterest expense . Interest expense increased by $10.5 million, or 5%, to $214.0 million from $203.5 million for the yearsended June 30, 2015 and 2014, respectively. The increase was primarily a result of our increased indebtedness and changes in thefair value of our interest rate swaps, partially offset by reduced interest rates on our outstanding indebtedness as a result of ourFiscal 2015 debt transactions.Loss on extinguishment of debt . During the year ended June 30, 2015, we redeemed our $750.0 million 2020 Secured Notesand a portion of our 2020 Unsecured Notes and repaid $344.5 million on our Term Loan Facility. As part of the redemptions andearly payment on the Term Loan Facility, we paid early redemption call premiums totaling $62.6 million and recorded an expenseof $31.7 million related to unamortized debt issuance costs and discounts associated with the extinguished indebtedness. Theseexpenses were recorded as a loss on extinguishment of debt during the year ended June 30, 2015.Foreign currency (loss)/gain on intercompany loans . Foreign currency (loss)/gain on intercompany loans decreased to aloss of $24.4 million for the year ended June 30, 2015, from a gain of $4.7 million for the year ended June 30, 2014. This non-cash loss was driven by the strengthening of the USD against the GBP and the related impact on intercompany loans entered intoby foreign subsidiaries in their functional currency.(Benefit)/provision for Income TaxesIncome tax expense decreased over the prior year by $46.1 million, to an income tax benefit of $8.8 million for Fiscal 2015,from an income tax expense of $37.3 million for Fiscal 2014. Our provision for income taxes included both the current provisionand a provision for deferred income tax expense resulting from timing differences between tax and financial reporting accountingbases. In addition, as a result of our stock-based compensation related to our CII common and preferred units and certaintransaction costs not being deductible for income tax purposes, our effective tax rate was higher than the statutory rate.53 Table of ContentsThe following table reconciles our expected tax provision based on the statutory federal tax rate applied to our earningsbefore income tax to our actual provision for income taxes: For the Year Ended June 30, 2015 2014 (in millions)Expected benefit at the statutory rate $(57.4) $(50.5)Increase/(decrease) due to: Non-deductible stock-based compensation 59.4 96.5State income taxes benefit, net of federal benefit (7.4) (6.6)Transactions costs not deductible for tax purposes 0.7 0.8Reversal of uncertain tax positions, net — (2.6)Change in effective tax rate (2.2) (0.3)Change in valuation allowance — 1.3Foreign tax rate differential 0.6 1.0Other, net (2.5) (2.3)Provision/(benefit) for income taxes $(8.8) $37.3Discontinued OperationsOur earnings from discontinued operations, net of taxes, of $2.3 million during the year ended June 30, 2014 relates to theoperations of OVS, which we spun off on June 13, 2014. See Note 4- Spin-off of Business to our consolidated financialstatements.Adjusted EBITDAWe define Adjusted EBITDA as earnings/(loss) from continuing operations before interest, income taxes, depreciation andamortization (“EBITDA”) adjusted to exclude acquisition or disposal-related transaction costs, losses on extinguishment of debt,stock-based compensation, unrealized foreign currency gains (losses) on intercompany loans, and non-cash income (loss) onequity and cost method investments. We use Adjusted EBITDA to evaluate operating performance, and this financial measure isamong the primary measures used by management for planning and forecasting for future periods. We believe that thepresentation of Adjusted EBITDA is relevant and useful for investors because it allows investors to view results in a mannersimilar to the method used by management and facilitates comparison of our results with the results of other companies that havedifferent financing and capital structures.We also monitor Adjusted EBITDA because our subsidiaries have debt covenants that restrict their borrowing capacity thatare based on a leverage ratio, which utilizes a modified EBITDA, as defined in our Credit Agreement and the indenturesgoverning our outstanding 2023 Unsecured Notes and 2025 Unsecured Notes (collectively, the “Notes”). The modified EBITDAis consistent with our definition of Adjusted EBITDA; however, it includes the pro forma Adjusted EBITDA of and expected costsynergies from the companies acquired by us during the quarter for which the debt compliance certification is due.Adjusted EBITDA results, along with other quantitative and qualitative information, are also utilized by management andour compensation committee for purposes of determining bonus payouts to employees.Adjusted EBITDA has limitations as an analytical tool and should not be considered in isolation from, or as a substitute for,analysis of our results as reported under accounting principles generally accepted in the United States (“GAAP”). For example,Adjusted EBITDA:·does not reflect capital expenditures, or future requirements for capital and major maintenance expenditures orcontractual commitments;·does not reflect changes in, or cash requirements for, our working capital needs;·does not reflect the significant interest expense, or the cash requirements necessary to service the interest payments, onour debt; and54 Table of Contents·does not reflect cash required to pay income taxes.Our computation of Adjusted EBITDA may not be comparable to other similarly titled measures computed by othercompanies because all companies do not calculate Adjusted EBITDA in the same fashion.Reconciliations from segment and consolidated Adjusted EBITDA to earnings/(loss) from continuing operations are asfollows: For the year ended June 30, 2016 Dark FiberSolutions NetworkConnectivity Colocationand CloudInfrastructure Zayo Canada Other Corp/Eliminations Total (in millions)Segment and consolidated AdjustedEBITDA $406.5 $359.3 $119.4 $45.2 $4.5 $ — $934.9Interest expense (99.9) (69.0) (42.0) (2.2) — (7.0) (220.1)Provision for income taxes — — — — — (8.5) (8.5)Depreciation and amortization expense (239.6) (142.3) (102.3) (30.2) (1.9) — (516.3)Transaction costs (2.9) (4.0) (1.2) (13.4) — — (21.5)Stock-based compensation (61.2) (69.8) (23.5) (0.9) (0.5) — (155.9)Loss on extinguishment of debt — — — — — (33.8) (33.8)Foreign currency gain/(loss) on intercompanyloans 0.3 0.8 — — — (54.9) (53.8)Non-cash loss on investments (1.3) — — — — 0.1 (1.2)Earnings/(loss) from continuing operations $1.9 $75.0 $(49.6) $(1.5) $2.1 $(104.1) $(76.2) For the year ended June 30, 2015 Dark FiberSolutions NetworkConnectivity Colocationand CloudInfrastructure Zayo Canada Other Corp/Eliminations Total (in millions)Segment and consolidated AdjustedEBITDA $364.3 $339.2 $73.8 $ — $5.3 $ — $782.6Interest expense (115.7) (75.8) (22.5) — — — (214.0)Benefit from income taxes — — — — — 8.8 8.8Depreciation and amortization expense (222.0) (136.3) (46.0) — (1.9) — (406.2)Transaction costs (1.8) (0.6) (1.4) — — (2.4) (6.2)Stock-based compensation (95.4) (90.1) (15.7) — 0.5 — (200.7)Loss on extinguishment of debt (53.3) (39.3) (1.7) — — — (94.3)Foreign currency loss on intercompany loans — (0.3) — — — (24.1) (24.4)Non-cash loss on investments (0.9) — — — — — (0.9)Earnings/(loss) from continuing operations $(124.8) $(3.2) $(13.5) $ — $3.9 $(17.7) $(155.3) For the year ended June 30, 2014 Dark FiberSolutions NetworkConnectivity Colocationand CloudInfrastructure Zayo Canada Other Corp/Eliminations Total (in millions)Segment and consolidated AdjustedEBITDA $287.6 $325.9 $37.3 $ — $8.0 $(5.2) $653.6Interest expense (116.5) (81.2) (5.3) — — (0.5) (203.5)Provision for income taxes — — — — — (37.3) (37.3)Depreciation and amortization expense (192.3) (131.4) (12.7) — (1.8) — (338.2)Transaction costs (2.2) (1.0) (0.6) — — (1.5) (5.3)Stock-based compensation (147.8) (90.0) (15.6) — (0.3) — (253.7)Loss on extinguishment of debt (1.1) (0.8) — — — — (1.9)Foreign currency gain on intercompany loans — — — — — 4.7 4.7Earnings/(loss) from continuing operations $(172.3) $21.5 $3.1 $ — $5.9 $(39.8) $(181.6)Liquidity and Capital ResourcesOur primary sources of liquidity have been cash provided by operations, equity contributions, and incurrence of debt. Ourprincipal uses of cash have been for acquisitions, capital expenditures, and debt service requirements. We anticipate that ourprincipal uses of cash in the future will be for acquisitions, capital expenditures, working capital, and debt service.55 Table of ContentsWe have financial covenants under the Indentures governing our Notes and our Credit Agreement that, under certaincircumstances, restrict our ability to incur additional indebtedness. The indentures governing the 2023 Unsecured Notes and the2025 Unsecured Notes limit any increase in ZGL’s secured indebtedness (other than certain forms of secured indebtednessexpressly permitted under such indentures) to a pro forma secured debt ratio of 4.50 times ZGL’s previous quarter’s annualizedmodified EBITDA (as defined in the indentures), and limit ZGL’s incurrence of additional indebtedness to a total indebtednessratio of 6.00 times the previous quarter’s annualized modified EBITDA. The Credit Agreement also contains a covenant,applicable only to the Revolver, that ZGL maintain a senior secured leverage ratio below 5.25:1.00 at any time when theaggregate principal amount of loans outstanding under the Revolver is greater than 35% of the commitments under the Revolver.The Credit Agreement also requires ZGL and its subsidiaries to comply with customary affirmative and negative covenants,including covenants restricting the ability of ZGL and its subsidiaries, subject to specified exceptions, to incur additionalindebtedness, make additional guaranties, incur additional liens on assets, or dispose of assets, pay dividends, or make otherdistributions, voluntarily prepay certain other indebtedness, enter into transactions with affiliated persons, make investments andamend the terms of certain other indebtedness. The Credit Agreement contains customary events of default, including amongothers, non-payment of principal, interest, or other amounts when due, inaccuracy of representations and warranties, breach ofcovenants, cross default to certain other indebtedness, insolvency or inability to pay debts, bankruptcy, or a change of control.As of June 30, 2016, we had $170.7 million in cash and cash equivalents and a working capital deficit of $89.4 million.Cash and cash equivalents consist of amounts held in bank accounts and highly-liquid U.S. treasury money market funds. Theprimary reason for the swing from a working capital surplus as of June 30, 2015 to a working capital deficit at June 30, 2016 isour change in accounting policy that requires our deferred tax assets and liabilities be classified as noncurrent in our classifiedbalance sheet. Although we have a working capital deficit as of June 30, 2016, a substantial portion of the deficit is a result of acurrent deferred revenue balance of $129.4 million that we will be recognizing as revenue over the next twelve months. Theactual cash outflows associated with fulfilling this deferred revenue obligation during the next twelve months will be significantlyless than the June 30, 2016 current deferred revenue balance. Additionally, as of June 30, 2016, we had $442.1 million availableunder our Revolver, subject to certain conditions. Accordingly, we believe that we have sufficient resources to fund ourobligations and foreseeable liquidity requirements in the near term and for the foreseeable future.Our capital expenditures increased by $173.7 million, or 33%, during the year ended June 30, 2016 as compared to the yearended June 30, 2015, to $704.1 million from $530.4 million. The increase in capital expenditures is a result of meeting the needsof our larger customer base resulting from our acquisitions and organic growth. We expect to continue to invest in our networkfor the foreseeable future. These capital expenditures, however, are expected to primarily be success-based; that is, in mostsituations, we will not invest the capital until we have an executed customer contract that supports the investment.As part of our corporate strategy, we continue to be regularly involved in discussions regarding potential acquisitions ofcompanies and assets, some of which may be quite large. We expect to fund such acquisitions with cash from operations, debtissuances (including available borrowings under our $450.0 million Revolver), equity offerings, and available cash on hand. Weregularly assess our projected capital requirements to fund future growth in our business, repay our debt obligations, and supportour other general corporate and operational needs, and we regularly evaluate our opportunities to raise additional capital. Asmarket conditions permit, we may refinance existing debt, issue new debt or equity securities through the capital markets, orobtain additional bank financing to fund our projected capital requirements or provide additional liquidity.Cash FlowsWe believe that our cash flows from operating activities, in addition to cash and cash equivalents currently on-hand, will besufficient to fund our operating activities and capital expenditures for the foreseeable future, and in any event for at least the next12 to 18 months. Given the generally volatile global economic climate, no assurance can be given that this will be the case.We regularly consider acquisitions and additional strategic opportunities, including large acquisitions, which may requireadditional debt or equity financing.56 Table of ContentsThe following table sets forth the components of our cash flows for the years ended June 30, 2016, 2015 and 2014. Year Ended June 30, 2016 2015 2014 (in millions)Net cash provided by operating activities $714.0 $605.4 $566.5Net cash used in investing activities $(1,141.6) $(1,386.1) $(754.1)Net cash provided by financing activities $291.7 $795.7 $392.7 Net Cash Flows from Operating ActivitiesNet cash flows from operating activities increased by $108.6 million to $714.0 million from $605.4 million during the yearsended June 30, 2016 and 2015, respectively.Net cash flows from operating activities during the year ended June 30, 2016 include the net loss of $76.2 million, plus theadd backs of non-cash items deducted in the determination of net loss, principally depreciation and amortization of $516.3million, stock-based compensation expense of $155.9 million, foreign currency loss on intercompany loans of $53.8 million andnon-cash interest expense of $11.9 million, partially offset by the deferred tax benefit of $2.8 million. Also contributing to thecash provided by operating activities were additions to deferred revenue of $184.0 million, less amortization of deferred revenueof $111.5 million. Cash flow during the period was reduced by the net change in working capital components of $48.4million. The $48.4 million cash outflow associated with the change in working capital components was primarily driven byincreases in prepaids of $18.7 million, decrease of accounts payable and accrued liabilities of $36.0 million and increases in otherassets and liabilities of $33.0 million.Net cash flows from operating activities during the year ended June 30, 2015 include the net loss of $155.3 million, plusthe add backs of non-cash items deducted in the determination of net loss, principally depreciation and amortization of $406.2 million, stock-based compensation expense of $200.7 million, foreign currency loss on intercompany loans of $24.4 million andnon-cash cash interest expense of $19.7 million plus an add back for $94.3 million associated with a loss on extinguishment ofdebt, partially offset by the deferred tax benefit of $13.3 million. Also contributing to the cash provided by operatingactivities were additions to deferred revenue of $149.1 million, less amortization of deferred revenue of $72.1 million. Cash flowduring the period was reduced by the net change in working capital components of $51.1 million. The $51.1 million cashoutflow associated with the change in working capital components was primarily driven by increases in trade receivables of$11.2 million, decrease of accounts payable and accrued liabilities of $22.1 million and increases in other assets and liabilitiesof $14.9 million.The increase in net cash flows from operating activities during the year ended June 30, 2016 as compared to the year endedJune 30, 2015 is primarily a result of additional earnings from organic growth and synergies realized from our Fiscal 2015 andFiscal 2016 acquisitions, offset in part by increased interest payments.Net cash flows from operating activities increased by $38.9 million to $605.4 million from $566.5 million during the yearsended June 30, 2015 and 2014, respectively.Net cash flows from operating activities during the year ended June 30, 2014 represents our net loss from continuingoperations of $181.6 million, plus the add back to our net loss of non-cash items deducted in the determination of net loss,principally depreciation and amortization of $338.2 million, non-cash interest expense of $22.1 million, the deferred tax provisionof $24.2 million, stock-based compensation expense of $253.7 million and loss on extinguishment of debt of $1.9 million. Alsocontributing to the cash provided by operating activities were additions to deferred revenue of $163.8 million, less amortization ofdeferred revenue of $55.6 million. Cash flow during the period was increased by the net change in working capital components of$2.6 million.The increase in net cash flows from operating activities during the year ended June 30, 2015 as compared to the year endedJune, 2014 is primarily a result of additional earnings from organic growth and synergies realized from our Fiscal 2014 and Fiscal2015 acquisitions, offset in part by increased interest and tax payments.57 Table of ContentsCash Flows Used in Investing ActivitiesWe used cash in investing activities of $1,141.6 million, $1,386.1 million and $754.1 million during the years ended June30, 2016, 2015 and 2014, respectively.During the year ended June 30, 2016, our principal uses of cash for investing activities were $704.1 million in additions toproperty and equipment and $437.5 million in net cash paid for acquisitions.During the year ended June 30, 2015, our principal uses of cash for investing activities were $530.4 million in additions toproperty and equipment and $855.7 million in net cash paid for acquisitions.During the year ended June 30, 2014, our principal uses of cash for investing activities were $360.8 million in additions toproperty and equipment and $393.3 million in net cash paid for acquisitions.Cash Flows Provided By Financing ActivitiesOur net cash provided by financing activities was $291.7 million, $795.7 million and $392.7 million during the years endedJune 30, 2016, 2015 and 2014, respectively.Our cash flows provided by financing activities during the year ended June 30, 2016 are primarily comprised of $929.3million in aggregate proceeds from our $400 million Incremental Amendment to the Term Loan Facility and $550 millionissuance of additional 2025 Unsecured Notes, net of discounts. These were partially offset by $81.1 million in common stockrepurchases, $535.0 million of principal payments on long-term debt, $4.9 million in principal payments on capital leaseobligations, and $4.2 million in payment of debt issuance costs.Our cash flows provided by financing activities during the year ended June 30, 2015 are primarily comprised of $1,787.3million from debt proceeds and $413.7 million of proceeds from equity offerings. These were partially offset by $1,292.0 millionof principal payments on long-term debt and capital lease obligations, $62.6 million of early redemption fees on debtextinguished, $24.2 million of debt issuance costs and $26.5 million in direct costs associated with the equity offerings.Our cash flows provided by financing activities during the year ended June 30, 2014 are primarily comprised of $423.6million from debt proceeds, partially offset by $25.9 million of principal payments on long-term debt and capital lease obligationsand $4.9 million in debt issuance costs.Contractual Cash ObligationsThe following table represents a summary of our estimated future payments under contractual cash obligations as of June30, 2016 for continuing operations. Changes in our business needs, cancellation provisions, changing interest rates and otherfactors may result in actual payments differing from these estimates. We cannot provide certainty regarding the timing andamounts of these future payments. Total Less Than 1Year 1-3 Years 3-5 Years More Than 5 Years (in millions)Long-term debt (principal and interest) $5,639.3 $215.8 $431.6 $2,263.2 $2,728.7Operating leases 910.1 133.3 259.7 185.1 332.0Purchase obligations 268.7 268.7 — — —Capital leases (principal and interest) 62.9 6.8 10.8 8.8 36.5Total $6,881.0 $624.6 $702.1 $2,457.1 $3,097.2 Our operating leases and purchase commitments include expected payments for our operating facilities, network servicesand capacity, communications equipment, and maintenance obligations. Our purchase commitments are primarily success-based,meaning that before we commit resources to expand our network, we have a signed customer contract that will provide us with anattractive return on the required capital. The contractual long-term debt payments,58 Table of Contentsabove, include an estimate of future interest expense based on the interest rates in effect on our floating rate debt obligations as ofthe most recent balance sheet date.Cash payments for interest, net of capitalized interest, which are reflected in our cash flows from operating activities,during the year ended June 30, 2016 were $228.5 million and represent 32% of our cash flows from operating activities beforeinterest expense. We also made cash payments related to principal payments on our long-term debt and capital lease obligationsof $18.3 million (exclusive of our $196.0 million prepayment of our Term Loan Facility and $325.6 million redemption of our2020 Unsecured Notes), which are reflected in our cash flows from financing activities, and represent 3% of our cash flows fromoperating activities.Off-Balance Sheet ArrangementsWe do not have any special purpose or limited purpose entities that provide off-balance sheet financing, liquidity, or marketor credit risk support and we do not engage in leasing, hedging, or other similar activities that expose us to any significantliabilities that are not (i) reflected on the face of the consolidated financial statements, (ii), or disclosed in Note 14- Commitmentsand Contingencies to our audited consolidated financial statements, or in the Contractual Cash Obligations table included above.Recently Issued Accounting PronouncementsIn February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, Leases . The new guidance supersedes existing guidance on accounting for leases in Topic 840 and is intended to increasethe transparency and comparability of accounting for lease transactions. ASU 2016-02 requires most leases to be recognized onthe balance sheet. Lessees will need to recognize a right-of-use asset and a lease liability for virtually all leases. The liability willbe equal to the present value of lease payments. The asset will be based on the liability, subject to adjustment, such as for initialdirect costs. For income statement purposes, the FASB retained a dual model, requiring leases to be classified as either operatingor finance. Lessor accounting remains similar to the current model, but updated to align with certain changes to the lessee modeland the new revenue recognition standard (ASU 2014-09). The ASU will require both quantitative and qualitative disclosuresregarding key information about leasing arrangements. The standard is effective for fiscal years, and interim periods within thosefiscal years, beginning after December 15, 2018. Early adoption is permitted. The new standard must be adopted using a modifiedretrospective transition, and provides for certain practical expedients. Transition will require application of the new guidance atthe beginning of the earliest comparative period presented. We are evaluating the effect that ASU 2016-02 will have on ourconsolidated financial statements and related disclosures. We have not yet selected a transition method nor have we determinedthe effect of the standard on our ongoing financial reporting.On March 30, 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting ,which is intended to improve the accounting for share-based payment transactions as part of the FASB’s simplification initiative.The ASU changes five aspects of the accounting for share-based payment award transactions that will affect public companies,including: (1) accounting for income taxes; (2) classification of excess tax benefits on the statement of cash flows; (3) forfeitures;(4) minimum statutory tax withholding requirements; and (5) classification of employee taxes paid on the statement of cash flowswhen an employer withholds shares for tax-withholding purposes. This ASU is effective for fiscal years beginning afterDecember 15, 2016. Early adoption is permitted. We are evaluating the effect that ASU 2016-09 will have on our consolidatedfinancial statements and related disclosures. If adopted in the current fiscal year, among other changes, $7.9 million in excess taxbenefits would be reclassified from a financing activity inflow to an operating activity inflow.In September 2015, the FASB issued ASU 2015-17, Balance Sheet Classification of Deferred Taxes . The new standardrequires that deferred tax assets and liabilities be classified as noncurrent in a classified balance sheet. The guidance is effectivefor financial statements issued for annual periods beginning after December 15, 2016, and interim periods within those annualperiods. Earlier application is permitted for all entities as of the beginning of an interim or annual reporting period. Theamendments in this ASU may be applied either prospectively to all deferred tax assets and liabilities or retrospectively to allperiods presented. We adopted this standard prospectively as of April 1, 2016. Our June 30, 2015 consolidated balance sheet with$129.5 million of net current deferred tax assets has not been retrospectively adjusted.59 Table of ContentsIn September 2015, the FASB issued ASU 2015-16, Simplifying the Accounting for Measurement-Period Adjustments ,which requires acquirers who have reported provisional amounts for items in a business combination to recognize adjustments toprovisional amounts that are identified during the measurement period, in the reporting period in which the adjustments aredetermined. The ASU also requires that the acquirer record, in the same period’s financial statements, the effect on earnings ofchanges in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts,calculated as if the accounting had been completed at the acquisition date. Prior to the issuance of ASU 2015-16, adjustments toprovisional amounts were required to be retrospectively adjusted. We prospectively early-adopted ASU 2015-16 effective July 1,2015. The adoption of this standard did not have a material impact on our consolidated financial statements.In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers , which requires an entity torecognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers.The ASU will replace most existing revenue recognition guidance in GAAP when it becomes effective. In July 2015, the FASBdeferred the effective date to annual reporting periods and interim reporting periods within annual reporting periods beginningafter December 15, 2017. Early adoption is permitted as of the original effective date or annual reporting periods and interimreporting periods within annual reporting periods beginning after December 15, 2016. The standard permits the use of either theretrospective or cumulative effect transition method. We are evaluating the effect that ASU 2014-09 will have on us and ourconsolidated financial statements and related disclosures. We have not yet selected a transition method nor have we determinedthe effect of the standard on our ongoing financial reporting.Critical Accounting Policies and EstimatesThis discussion and analysis of our financial condition and results of operations are based upon our consolidated financialstatements, which have been prepared in accordance with GAAP. The preparation of these financial statements requires us tomake estimates and judgments that affect the reported amounts of assets, liabilities, revenue, expenses and related disclosures. Webase our estimates on historical results which form the basis for making judgments about the carrying values of assets andliabilities that are not readily apparent from other sources. We evaluate these estimates on an ongoing basis. Actual results maydiffer from these estimates under different assumptions or conditions.We have accounting policies that involve estimates such as the allowance for doubtful accounts, revenue reserves, usefullives of long-lived assets, fair value of our restricted stock units, common and preferred units issued as compensation, accruals forestimated tax and legal liabilities, accruals for exit activities associated with real estate leases, accruals for customer disputes andvaluation allowance for deferred tax assets. We have identified the policies below, which require the most significant judgmentsand estimates to be made in the preparation of our consolidated financial statements, as critical to our business operations and anunderstanding of our results of operations.Revenue and Trade ReceivablesWe recognize revenue derived from leasing fiber optic telecommunications infrastructure and the provision oftelecommunications and colocation services when the service has been provided and when there is persuasive evidence of anarrangement, the fee is fixed or determinable and collection of the receivable is reasonably assured. Taxes collected fromcustomers and remitted to government authorities are excluded from revenue.We often bill customers for upfront charges, which are non-refundable. These charges relate to down payments orprepayments for future services and are influenced by various business factors including how we and the customer agree tostructure the payment terms. If the upfront payment made by a customer provides no benefit to the customer beyond the contractterm, the upfront charge is deferred and recognized as revenue ratably over the contract term. If the upfront payment providesbenefit to the customer beyond the contract term, the charge is recognized as revenue over the estimated life of the customerrelationship.Revenue attributable to leases of dark fiber pursuant to IRUs is accounted for in the same manner as the accountingtreatment for sales of real estate with property improvements or integral equipment. This accounting treatment typically results inthe deferral of revenue for the cash that has been received and the recognition of revenue ratably over the term of the agreement(generally up to 20 years).60 Table of ContentsRevenue is recognized at the amount expected to be realized, which includes billing and service adjustments. During eachreporting period, we make estimates for potential future sales credits to be issued in respect of current revenue related to serviceinterruptions and customer disputes, which are recorded as a reduction in revenue. We analyze historical credit activity whenevaluating our credit reserve requirements. We reserve for known service interruptions as incurred. We review customer disputesand reserve against those we believe to be valid claims. The determination of the customer dispute credit reserve involvessignificant judgment, estimations and assumptions.We defer recognition of revenue until cash is collected on certain components of revenue, principally contract terminationcharges and late fees.We estimate the ability to collect our receivables by performing ongoing credit evaluations of our customers’ financialcondition, and provide an allowance for doubtful accounts based on expected collection of our receivables. Our estimates arebased on assumptions and other considerations, including payment history, credit ratings, customer financial performance,industry financial performance and aging analysis.Stock-Based CompensationWe account for our stock-based compensation in accordance with the provisions of ASC 718—Compensation: StockCompensation, which requires stock compensation to be recorded as either liability or equity awards based on the terms of thegrant agreement.CII Common UnitsThe CII common units granted to employees were considered to be stock-based compensation with terms that required theawards to be classified as liabilities due to cash settlement features. Prior to our IPO, we adjusted the value of the vested portionof our common unit liability awards to their fair value at the end of each reporting period. We used a third party valuation firm toassist in the valuation of the CII common units at each reporting period. In developing a value for the common units, a two-stepvaluation approach was used. In the first step, we estimated the value of our equity through an analysis of valuations associatedwith various future potential liquidity scenarios. The second step involved allocating these values across our capital structure.We allocated value to each class of common units using the Probability Weighted Expected Return Method (“PWERM”).The unit value was based on a probability-weighted present value of expected future proceeds to our shareholders, consideringeach potential liquidity scenario available to us as well as preferential rights of each security. The potential scenarios that weconsidered within the PWERM framework were remaining a private company with the same ownership, a sale or merger, and aninitial public offering. The PWERM utilized a variety of assumptions regarding the likelihood of a certain scenario occurring, ifthe scenario involved a transaction, the potential timing of such an event, and the potential valuation that each scenario mightyield.Based on these scenarios, management calculated the probability-weighted expected return to all of the equity holders. Theresulting enterprise valuation was then allocated across our capital structure. Upon a liquidation of CII, or upon a non-liquidatingdistribution, the holders of common units would share in the proceeds after the CII preferred unit holders received theirunreturned capital contributions and their priority return (6% per annum). After the preferred unreturned capital contributions andthe priority return were satisfied, the remaining proceeds were allocated on a scale ranging from 85% to the Class A preferred unitholders and 15% to the common unit holders to 80% to the preferred unit holders and 20% to the common unit holders dependingupon the return multiple to the preferred unit holders, also known as the waterfall allocation.The value attributable to each class of shares was then discounted in order to account for the lack of marketability of theunits. In determining the appropriate lack of marketability discount, we evaluated both empirical and theoretical approaches toarrive at a composite range that we believed indicated a reasonable spectrum of discounts for each of the valuation techniquesutilized. The empirical methods we evaluated relied on datasets procured from observed transactions in equity interests in thepublic domain that were perceived to incorporate pricing information related to the marketability (or lack thereof) of the equityinterest itself. These empirical methods included initial public offering studies and restricted stock studies. Theoretical modelsutilized in our analysis formed the primary basis for the discount61 Table of Contentsfor lack of marketability, and included the Finnerty Average-Strike Put, the Asian Protective Put and the Black-Scholes-MertonProtective Put.In connection with our IPO and the related amendment to the CII operating agreement, there was a deemed modification tothe stock compensation arrangements with our current and former employees and directors. As a result, previously issuedcommon units, which were historically accounted for as liability awards, became classified as equity awards. Prior toreclassifying our common unit liability to equity, we re-measured the fair value of the CII common units factoring in the changein fair value resulting from the passage of time and the change in fair value caused by the modification. The fair value of thesepreviously vested common units was estimated to be $490.2 million on the modification date, and this amount is reflected in ourconsolidated statement of stockholders’ equity as an increase to additional paid-in capital during the year ended June 30, 2015.The unrecognized compensation associated with unvested CII common units was $70.2 million as of June 30, 2015, which will berecognized ratably over the remaining vesting period of the outstanding common units through May 15, 2017.On October 9, 2014, we and CII’s board of managers approved a non-liquidating distribution by CII of shares of ourcommon stock held by CII to holders of CII vested common units. Holders of vested CII common units received shares of ourcommon stock as a distribution in respect of the value of their underlying vested CII common units. Employees with unvested CIIcommon units will continue to receive monthly distributions from CII of our common stock as they vest under the original termsof the CII common unit grant agreements. CII may be required to distribute additional shares of our common stock to CIIcommon unit holders on a quarterly basis through June 30, 2016 based on our stock price performance, subject to the existingvesting provisions of the CII common units. The shares to be distributed to the common unit holders are based on a pre-existingdistribution mechanism, whose primary input is our stock price at each subsequent measurement date. Any remaining shares ofcommon stock owned by CII will be distributed to the existing CII preferred unit holders.The valuation of the CII common units as of the date of our IPO was determined based on a Monte Carlo simulation. TheMonte Carlo valuation analysis attempts to approximate the probability of certain outcomes by running multiple trial runs, calledsimulations, using random variables to generate potential future stock prices. This valuation technique was used to estimate thefair value associated with future distributions of our common stock to CII common unit holders. The Monte Carlo simulation firstprojects the number of shares to be distributed by CII to the common unit holders at each subsequent measurement date based onstock price projections under each simulation. Shares attributable to unvested CII common units are subject to the existing vestingprovisions of the CII common unit awards. The estimated future value of shares scheduled to be distributed by CII based onvesting provisions are calculated under each independent simulation. The present value of the number of shares of common stockto be distributed to common unit holders under each simulation is then computed, and the average of each simulation is the fairvalue of our common stock to be distributed by CII to the common unit holders. This value was then adjusted for prior non-liquidating distributions made by us to derive a value for CII common units by class and on a per unit basis. These values wereused to calculate the fair value of outstanding CII common units as of the IPO date. Various inputs and assumptions were utilizedin the valuation method, including forfeiture behavior, vesting provisions, holding restrictions, peer companies’ historicalvolatility, and an appropriate risk-free rate.Performance Incentive Compensation PlanIn October 2014, our Board of Directors adopted the 2014 Performance Compensation Incentive Plan (“PCIP”). The PCIPincludes incentive cash compensation and equity (in the form of restricted stock units or “RSUs”). Grants of RSUs under thePCIP plan are made quarterly for all participants. The PCIP went into effect on October 16, 2014.The PCIP has the following components:Part AUnder Part A of the PCIP, all full-time employees, including our executives, are eligible to earn quarterly awards of RSUs.Each participant in Part A of the PCIP will have a target RSU annual award value, which will be allocated each fiscal quarter. Thenumber of Part A RSUs granted will be calculated based on the final award value determined by the Compensation Committeedivided by the average closing price of our common stock over the last ten trading days of the62 Table of Contentsrespective performance quarter. Part A RSUs will cliff vest based upon continued employment through the end of the fourth fullfiscal quarter ending after the grant date of the Part A RSU. Thereafter, the RSUs will be converted for an equal number of sharesin our common stock.Each quarterly Part A award is recorded as a liability as of the end of the respective measurement quarter, as the awardsrepresent an obligation denominated in a fixed dollar amount to be settled in a variable number of shares during the subsequentquarter. Upon the issuance of the RSUs, the liability is re-measured, representing the vested portion of the fair value of the actualnumber of RSUs issued, and the liability is then reclassified to additional paid-in capital. The remaining unvested value isexpensed through the respective vesting date.Part BUnder Part B of the PCIP, participants, who include members of our senior management team, are awarded quarterly grantsof RSUs. The number of the RSUs earned by the participants is based on our stock price performance over a four fiscal quartermeasurement period, and Part B RSUs cliff vest based upon continued employment at the end of the measurement period. Theexistence of a vesting provision that is associated with the performance of our stock price is a market condition, which affects thedetermination of the grant date fair value. Upon vesting, RSUs convert to shares of our common stock.The grant date fair value of Part B awards issued during a given period are expensed over the performance period. Thegrant date fair value is estimated utilizing a Monte Carlo simulation, which uses randomly generated stock-price paths through aGeometric Brownian Motion stock price simulation. This simulation provides a stochastic projection of the ten-day averageclosing stock price ending on the vesting date (i.e., end of performance period), the total stock price performance over theperformance period, and the number of common shares to be issued at the vesting date. Various assumptions are utilized in thevaluation method, including the target stock price performance ranges and respective share payout percentages, our historicalstock price performance and volatility, peer companies’ historical volatility and an appropriate risk-free rate. The aggregate futurevalue of the grant under each simulation is calculated using the estimated per share value of the common stock at the end of therestriction period multiplied by the number of common shares projected to be granted at the vesting date. The present value of theaggregate grant is then calculated under each simulation resulting in a distribution of potential present values. The average of thispresent value distribution equals the fair value of the grant.Part CUnder Part C of the PCIP, independent directors of the Company are eligible to receive quarterly awards of RSUs.Independent directors electing to receive a portion of their annual director fees in the form of RSUs are granted a set dollaramount of Part C RSUs each quarter. The quantity of the Part C RSUs granted is based on the average closing price of theCompany’s common stock over the last ten trading days of the quarter ended immediately prior to the grant date and vest at theend of each quarter for which the grant was made.Property and EquipmentWe record property and equipment acquired in connection with a business combination at their estimated fair values on theacquisition date. See “—Critical Accounting Policies and Estimates: Acquisitions—Purchase Price Allocation.” Purchases ofproperty and equipment are stated at cost, net of depreciation. Major improvements are capitalized, while expenditures for repairsand maintenance are expensed when incurred. Costs incurred prior to a capital project’s completion are reflected as construction-in-progress and are part of network infrastructure assets. Depreciation begins once the property and equipment is available andready for use. Certain internal direct labor costs of constructing or installing property and equipment are capitalized. Capitalizeddirect labor reflects a portion of the salary and benefits of certain field engineers and other employees that are directly related tothe construction and installation of network infrastructure assets. We have contracted with third party contractors for theconstruction and installation of the majority of our fiber network. Depreciation and amortization is provided on a straight-linebasis over the estimated useful lives of the assets, with the exception of leasehold improvements, which are amortized over thelesser of the estimated useful lives or the term of the lease.63 Table of ContentsEstimated useful lives of our property and equipment in years are as follows: Estimated useful lives (in years)Land N/ABuildings - leasehold and site improvements 15 to 35Furniture, fixtures and office equipment 3 to 7Computer hardware 3 to 5Software 3Machinery and equipment 5 to 7Fiber optic equipment 8Circuit switch equipment 10Packet switch equipment 5Fiber optic network 15 to 20Construction in progress N/A We perform periodic internal reviews to estimate useful lives of our property and equipment. Due to rapid changes intechnology and the competitive environment, selecting the estimated economic life of telecommunications property andequipment requires a significant amount of judgment. Our internal reviews take into account input from our network servicespersonnel regarding actual usage, physical wear and tear, replacement history, and assumptions regarding the benefits and costs ofimplementing new technology that factor in the need to meet our financial objectives.When property and equipment is retired or otherwise disposed of, the cost and accumulated depreciation is removed fromthe accounts, and resulting gains or losses are reflected in operating income.From time to time, we are required to replace or re-route existing fiber due to structural changes such as construction andhighway expansions, which is defined as a “relocation.” In such instances, we fully depreciate the remaining carrying value ofnetwork infrastructure removed or rendered unusable, and capitalize the new fiber and associated construction costs of therelocation placed into service. To the extent that the relocation does not require the replacement of components of our network,and only involves the act of moving our existing network infrastructure, as-is, to another location, the related costs are expensedas incurred.Interest costs are capitalized for all assets that require a period of time to get them ready for their intended use. This policyis based on the premise that the historical cost of acquiring an asset should include all costs necessarily incurred to bring it to thecondition and location necessary for its intended use. In principle, the cost incurred in financing expenditures for an asset during arequired construction or development period is itself a part of the asset’s historical acquisition cost. The amount of interest costscapitalized for qualifying assets is determined based on the portion of the interest cost incurred during the assets’ acquisitionperiods that theoretically could have been avoided if expenditures for the assets had not been made. The amount of interestcapitalized in an accounting period is calculated by applying the capitalization rate to the average amount of accumulatedexpenditures for the asset during the period. The capitalization rates used to determine the value of interest capitalized in anaccounting period is based on our weighted average effective interest rate for outstanding debt obligations during the respectiveaccounting period.We periodically evaluate the recoverability of our long-lived assets and evaluate such assets for impairment wheneverevents or circumstances indicate that the carrying amount of such assets may not be recoverable. Impairment is determined toexist if the estimated future undiscounted cash flows are less than the carrying value of such assets. We consider various factors todetermine if an impairment test is necessary. The factors include: consideration of the overall economic climate, technologicaladvances with respect to equipment, our strategy, and capital planning. Since our inception, no event has occurred nor has therebeen a change in the business environment that would trigger an impairment test for our property and equipment assets.64 Table of ContentsDeferred Tax AssetsDeferred tax assets arise from a variety of sources, the most significant being tax losses that can be carried forward to beutilized against taxable income in future years, deferred revenue and expenses recognized in our income statement but disallowedin our tax return until the associated cash flow occurs.We record a valuation allowance to reduce our deferred tax assets to the amount that is expected to be recognized. Theamount of deferred tax assets recorded on our consolidated balance sheets is influenced by management’s assessment of ourfuture taxable income with regard to relevant business plan forecasts, the reversal of deferred tax balances, and reasonable taxplanning strategies. At each balance sheet date, existing assessments are reviewed and, if necessary, revised to reflect changedcircumstances. In a situation where recent losses have been incurred, the relevant accounting standards require convincingevidence that there will be sufficient future taxable income.In connection with several of our acquisitions, we have acquired significant U.S. net operating loss carry forwards(“NOLs”). The Tax Reform Act of 1986 contains provisions that limit the utilization of NOLs if there has been an “ownershipchange” as described in Section 382 of the Internal Revenue Code.Upon acquiring a company that has NOLs, we prepare an assessment to determine if we have a legal right to use theacquired NOLs. In performing this assessment we follow the regulations within the Internal Revenue Code Section 382: NetOperating Loss Carryovers Following Changes in Ownership . Any disallowed NOLs acquired are written off in purchaseaccounting.A valuation allowance is required for deferred tax assets if, based on available evidence, it is more-likely-than-not that allor some portion of the asset will not be realized due to the inability to generate sufficient taxable income in the period and/or ofthe character necessary to utilize the benefit of the deferred tax asset. When evaluating whether it is more-likely-than-not that allor some portion of the deferred tax asset will not be realized, all available evidence, both positive and negative, that may affectthe realizability of deferred tax assets is identified and considered in determining the appropriate amount of the valuationallowance. We continue to monitor our financial performance and other evidence each quarter to determine the appropriateness ofour valuation allowance. If we are unable to meet our taxable income forecasts in future periods we may change our conclusionabout the appropriateness of the valuation allowance, which could create a substantial income tax expense in our consolidatedstatement of operations in the period such change occurs.As of June 30, 2016, we had a cumulative U.S. federal NOL carry forward balance of $1,239.7 million. During the yearending June 30, 2016, we utilized $23.0 million of U.S. NOL carry forwards that were available to offset future taxableincome. Our NOL carry forwards, if not utilized to reduce taxable income in future periods, will expire in various amountsbeginning in 2019 and ending in 2035. As a result of Internal Revenue Service regulations, we are currently limited to utilizing amaximum of $730.7 million of acquired NOL carry forwards during Fiscal 2016; however, to the extent that we do not utilize$730.7 million of our acquired NOL carry forwards during a fiscal year, the difference between the $730.7 million maximumusage and the actual NOLs usage is carried over to the next calendar year. Of our $1,239.7 million NOL carry forwards balance,$1,051.1 million of these NOL carry forwards were acquired in acquisitions. The deferred tax assets recognized at June 30, 2016have been based on future profitability assumptions over a five-year horizon.The analysis of our ability to utilize our U.S. NOL balance is based on our forecasted taxable income. The forecastedassumptions approximate our best estimates, including market growth rates, future pricing, market acceptance of our products andservices, future expected capital investments, and discount rates. Although our forecasted income includes increased taxableearnings in future periods, flat earnings over the period in which our NOL carry forwards are available would result in fullutilization of our NOL carry forwards.Goodwill and Purchased IntangiblesWe review goodwill and indefinite-lived intangible assets for impairment at least annually in April, or more frequently if atriggering event occurs between impairment testing dates.65 Table of ContentsIntangible assets arising from business combinations, such as acquired customer contracts and relationships (collectively“customer relationships”), are initially recorded at fair value. We amortize customer relationships primarily over an estimated lifeof ten to twenty years using the straight-line method, as this method approximates the timing in which we expect to receive thebenefit from the acquired customer relationship assets. Goodwill represents the excess of the purchase price over the fair value ofthe net identifiable assets acquired in a business combination.Our impairment assessment begins with a qualitative assessment to determine whether it is more likely than not that the fairvalue of a reporting unit is less than its carrying value. The qualitative assessment includes comparing the overall financialperformance of the reporting units against the planned results used in the last quantitative goodwill impairment test. Additionally,each reporting unit’s fair value is assessed in light of certain events and circumstances, including macroeconomic conditions,industry and market considerations, cost factors, and other relevant entity- and reporting unit-specific events. If it is determinedunder the qualitative assessment that it is more likely than not that the fair value of a reporting unit is less than its carrying value,then a two-step quantitative impairment test is performed. Under the first step, the estimated fair value of the reporting unit iscompared with its carrying value (including goodwill). If the fair value of the reporting unit exceeds its carrying value, step twodoes not need to be performed. If the estimated fair value of the reporting unit is less than its carrying value, an indication ofgoodwill impairment exists for the reporting unit and the enterprise must perform step two of the impairment test (measurement).Under step two, an impairment loss is recognized for any excess of the carrying amount of the reporting unit’s goodwill over theimplied fair value of that goodwill. The implied fair value of goodwill is determined by allocating the fair value of the reportingunit in a manner similar to a purchase price allocation in acquisition accounting. The residual fair value after this allocation is theimplied fair value of the reporting unit goodwill. Fair value of the reporting unit under the two-step assessment is determinedusing a discounted cash flow analysis. The selection and assessment of qualitative factors used to determine whether it is morelikely than not that the fair value of a reporting unit exceeds the carrying value involves significant judgments and estimates.Our impairment assessment for indefinite-lived intangible assets involves comparing the estimated fair value of indefinite-lived intangible assets to their respective carrying values. To the extent the carrying value of indefinite-lived intangible assetsexceeds the fair value, we will recognize an impairment loss for the difference.Intangible assets with finite useful lives are amortized over their respective estimated useful lives and reviewed forimpairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable.We recorded no impairment charges for goodwill or intangibles during the years ended June 30, 2016, 2015 and 2014.Acquisitions – Purchase Price AllocationWe apply the acquisition method of accounting to account for business combinations. The cost of an acquisition ismeasured as the aggregate of the fair values at the date of exchange of the assets given, liabilities incurred, and equity instrumentsissued. Identifiable assets, liabilities, and contingent liabilities acquired or assumed are measured separately at their fair value asof the acquisition date. The excess of the cost of the acquisition over our interest in the fair value of the identifiable net assetsacquired is recorded as goodwill. If our interest in the fair value of the identifiable net assets acquired in a business combinationexceeds the cost of the acquisition, a gain is recognized in earnings on the acquisition date only after we have reassessed whetherwe have correctly identified all of the assets acquired and all of the liabilities assumed.For certain of our larger acquisitions, we engage outside appraisal firms to assist in the fair value determination ofidentifiable intangible assets such as customer relationships, tradenames, property and equipment and any other significant assetsor liabilities. We adjust the preliminary purchase price allocation, as necessary, after the acquisition closing date through the endof the measurement period (up to one year) as we finalize valuations for the assets acquired and liabilities assumed.The determination and allocation of fair values to the identifiable assets acquired and liabilities assumed is based on variousassumptions and valuation methodologies requiring considerable management judgment. The most significant variables in thesevaluations are discount rates, terminal values, the number of years on which to base the cash flow projections, and theassumptions and estimates used to determine cash inflows and outflows or other valuation66 Table of Contentstechniques (such as replacement cost). We determine which discount rates to use based on the risk inherent in the relatedactivity’s current business model and industry comparisons. Terminal values are based on the expected life of products,forecasted life cycle and forecasted cash flows over that period. Although we believe that the assumptions applied in thedetermination are reasonable based on information available at the date of acquisition, actual results may differ from theestimated or forecasted amounts and the difference could be material.ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISKOur exposure to market risk consists of changes in interest rates from time to time and market risk arising from changes inforeign currency exchange rates that could impact our cash flows and earnings.As of June 30, 2016, we had outstanding $1,430.0 million 2023 Unsecured Notes and $900.0 million 2025 Unsecured Notes(collectively, the “Notes”), a balance of $1,837.4 million on our Term Loan Facility, and $50.7 million of capital leaseobligations.On January 15, 2016, ZGL and Zayo Capital entered into an Incremental Amendment (the “Incremental Amendment”) tothe Credit Agreement. Under the terms of the Incremental Amendment, the Term Loan Facility was increased by $400.0 million.The additional amounts borrowed bear interest at LIBOR plus 3.5% with a minimum LIBOR rate of 1.0%. The $400.0 millionadd-on was priced at 99.0%.Based on current market interest rates for debt of similar terms and average maturities and based on recent transactions, weestimate the fair value of our Notes to be $2,338.1 million as of June 30, 2016. Our 2023 Unsecured Notes and 2025 UnsecuredNotes accrue interest at fixed rates of 6.00% and 6.375%, respectively.Both our Revolver and our Term Loan Facility accrue interest at floating rates subject to certain conditions. As of June 30,2016, the weighted average interest rates (including margin) on the Term Loan Facility and our Revolver were approximately3.9% and 3.4%, respectively. A hypothetical increase in the applicable interest rate on our Term Loan Facility of one percentagepoint would increase our annual interest expense by approximately 0.7% or $12.0 million, which is limited as a result of theapplicable interest rate as of June 30, 2016 being below the Credit Agreement’s 1.0% LIBOR floor. A hypothetical increase ofone percentage point above the LIBOR floor would increase the Company’s annual interest expense by approximately $18.4million before considering the offsetting effects of our interest rate swaps.In August 2012, we entered into interest rate swap agreements with an aggregate notional value of $750.0 million and amaturity date of June 30, 2017. The contracts state that we pay a 1.67% fixed rate of interest for the term of the agreements,beginning June 30, 2013. The counterparties pay to us the greater of actual LIBOR or 1.25%. We entered into the swaparrangements to reduce the risk of increased interest costs associated with potential future increases in LIBOR rates. Ahypothetical increase in LIBOR rates of 100 basis points would increase the fair value of our interest rate swaps by approximately$3.0 million.We are exposed to the risk of changes in interest rates if it is necessary to seek additional funding to support the expansionof our business and to support acquisitions. The interest rate that we may be able to obtain on future debt financings will bedependent on market conditions.We have exposure to market risk arising from foreign currency exchange rates. During the year ended June 30, 2016, ourforeign activities accounted for 23% of our consolidated revenue. We monitor foreign markets and our commitments in suchmarkets to assess currency and other risks. Currently, fluctuations in foreign exchange rates do not pose a material risk; a 1%increase in foreign exchange rates would change consolidated revenue by approximately $3.9 million. To date, we have notentered into any hedging arrangement designed to limit exposure to foreign currencies. As a result of our recent Europeanexpansion related to our acquisitions of Geo Networks Limited and Neo Telecoms as well as our recently closed acquisitions ofViatel and Allstream, our level of foreign activities is expected to increase and, if it does, we may determine that such hedgingarrangements would be appropriate and will consider such arrangements to minimize our exposure to foreign exchange risk.67 Table of ContentsOn June 23, 2016, the United Kingdom (“U.K.”) held a referendum in which voters approved an exit from the EuropeanUnion (“E.U.”), commonly referred to as “Brexit”. The announcement of Brexit caused significant volatility in global stockmarkets and currency exchange fluctuations that resulted in the strengthening of the U.S. dollar against foreign currencies inwhich we conduct business, which may adversely affect our results of operations and the value of our international assets andinvestments.We do not have any material commodity price risk.ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATAReference is made to the information set forth beginning on page F-1.ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIALDISCLOSURENone.ITEM 9A. CONTROLS AND PROCEDURESDisclosure Controls and ProceduresWe carried out an evaluation as of the last day of the period covered by this Annual Report on Form 10-K, under thesupervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, ofthe effectiveness of the design and operation of our disclosure controls and procedures as defined in Rules 13a-15 of theSecurities Exchange Act of 1934 (the “Exchange Act”). Disclosure controls and procedures include, without limitation, controlsand procedures designed to ensure that information required to be disclosed by us in reports filed or submitted under theExchange Act is recorded, processed and reported within the time periods specified by the Securities and ExchangeCommission’s rules and forms. Such controls include those designed to ensure that information is accumulated andcommunicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allowtimely decisions regarding required disclosure. Based on this evaluation, our Chief Executive Officer and Chief Financial Officerconcluded that due to our material weaknesses in our internal control over financial reporting described below, our disclosurecontrols and procedures were not effective as of June 30, 2016.Management’s Annual Report on Internal Control Over Financial ReportingOur management is responsible for establishing and maintaining adequate internal control over financial reporting, as suchterm is defined in Exchange Act Rules 13a-15(f). Our internal control over financial reporting is a process designed bymanagement, under the supervision of our Chief Executive Officer and Chief Financial Officer and effected by our board ofdirectors, management and other personnel, to provide reasonable assurance regarding the reliability of financial reporting and thepreparation of financial statements for external purposes in accordance with accounting principles generally accepted in theUnited States of America. Because of its inherent limitations, internal control over financial reporting may not prevent or detectmisstatements. Projections of any evaluation of effectiveness to future periods are subject to the risk that controls may becomeinadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such thatthere is a reasonable possibility that a material misstatement of the Company’s annual or interim financial statements will not beprevented or detected on a timely basis. A deficiency exists when the design or operation of a control does not allowmanagement or employees, in the normal course of performing their assigned functions, to prevent or detect misstatements on atimely basis.Our management, led by our Chief Executive Officer and Chief Financial Officer, assessed the effectiveness of internalcontrol over financial reporting as of June 30, 2016, using the criteria set forth in Internal Control- Integrated Framework (2013)issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO 2013 Framework). Our evaluation ofinternal control over financial reporting did not include the internal controls of the Allstream operations, which we acquired onJanuary 15, 2016. The aggregate amount of total assets and revenue of68 Table of ContentsAllstream included in our consolidated financial statements as of and for the year ended June 30, 2016 was $477.6 million and$213.3 million, respectively.Management’s evaluation of the effectiveness of our internal control over financial reporting determined that theCompany’s internal control over financial reporting was not effective as of June 30, 2016 because of the material weaknessesdescribed below. The material weaknesses were caused by the Company not having a sufficient number of employees that wereadequately trained with respect to COSO 2013 Framework, and the Company not conducting timely monitoring activities todetermine the effective operation of control activities within the information technology organization and revenue recognitionwith respect to collectability criterion. As a result, the Company had the following control deficiencies :·The Company did not have effective general information technology controls (“GITCs”) over several technology systems,specifically program change controls designed to restrict IT program developers’ access rights to IT systems; user accesscontrols designed to restrict IT and financial users’ access privileges to IT applications commensurate with their assignedauthorities and responsibilities; and monitoring controls designed to actively monitor program changes and user accessactivities to ensure that any program changes and user access was appropriate and that any deficiencies were investigated andremediated. As a result, process level automated and manual controls were also ineffective. These IT systems affect theconsolidation and financial reporting processes.·In addition, the Company did not have an adequately designed and documented management review control over theaccounting for revenue recognition collectability criterion. Specifically, the management review control did not adequatelyaddress or document management’s expectations, criteria for investigation, the level of precision used in the performance ofthe review control, and how outliers were addressed. The control deficiencies described above resulted in no misstatements in our consolidated financial statements as of and forthe fiscal year ended June 30, 2016. These control deficiencies create a reasonable possibility that a material misstatement to ourconsolidated financial statements will not be prevented or detected on a timely basis, and therefore we concluded that thedeficiencies represent material weaknesses in our internal control over financial reporting as of June 30, 2016.The independent registered public accounting firm, KPMG LLP, has expressed an adverse report on the operatingeffectiveness of our internal control over financial reporting as of June 30, 2016. KPMG LLP’s report appears on page F-2.Management’s Remediation PlanManagement has been actively engaged in developing remediation plans to address the above control deficiencies. Theremediation efforts expected to be implemented include i) implementing a recurring monitoring process over developer accessand actions and ii) enhancing management’s comprehensive review of internal control over financial reporting across theorganization to ensure that all aspects of the COSO 2013 Framework are appropriately addressed and providing additionaltraining regarding evidence standards for documenting operating effectiveness of internal control over financial reporting. Management has developed a detailed plan and timetable for the implementation of the forgoing remediation efforts and willmonitor the implementation. Because the reliability of the internal control process requires repeatable execution, the successfulremediation of these material weaknesses will require review and evidence of effectiveness prior to concluding that the controlsare effective and there is no assurance that additional remediation steps will not be necessary.Changes in Internal Controls over Financial ReportingManagement has evaluated, with the participation of our Chief Executive Officer and Chief Financial Officer, whether anychanges in our internal control over financial reporting that occurred during our last fiscal quarter have materially affected, or arereasonably likely to materially affect, our internal control over financial reporting. Management has implemented changes in theaccounting and technology areas as a result of our Sarbanes Oxley compliance program. Such changes have included but are notlimited to formalizing existing and establishing new internal controls, implementation of technology solutions, and hiringadditional accounting and technology personnel. 69 Table of ContentsManagement believes the changes that have been implemented in the fourth quarter and other ongoing enhancements willcontinue to have a material impact on our internal control over financial reporting in future periods as we continue to makeimprovements to our Sarbanes Oxley compliance program implementation.ITEM 9B. OTHER INFORMATIONNot applicable.70 Table of ContentsPART IIIITEM 10. DIRECTOR, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCEThe information required by this Item 10 is incorporated by reference to the sections entitled “Proposal 1. Election ofDirectors,” “Corporate Governance,” “Executive Officers,” and “Section 16(a) Beneficial Ownership Reporting Compliance” in our definitive proxy statement for the 2016 Annual Meeting of Stockholders to be filed with the SEC.ITEM 11. EXECUTIVE COMPENSATIONThe information required by this Item 11 is incorporated by reference to the sections entitled “Compensation Discussionand Analysis” and “Compensation Committee Report” in our definitive proxy statement for the 2016 Annual Meeting ofStockholders to be filed with the SEC.ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATEDSTOCKHOLDER MATTERSThe information required by this Item 12 is incorporated by reference to the sections entitled “Security Ownership ofCertain Beneficial Owners and Management” and “Equity Compensation Plan Information” in our definitive proxy statement forthe 2016 Annual Meeting of Stockholders to be filed with the SEC. ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS AND DIRECTOR INDEPENDENCEThe information required by this Item 13 is incorporated by reference to the sections entitled “Certain Relationships andRelated Party Transactions” and “Corporate Governance” in our definitive proxy statement for the 2016 Annual Meeting ofStockholders to be filed with the SEC.ITEM 14. PRINCIPAL ACCOUNTING FEES AND SERVICESThe information required by this Item 14 is incorporated by reference to the section entitled “Proposal 2. Ratification ofAppointment of Independent Registered Public Accounting Firm” in our definitive proxy statement for the 2016 Annual Meetingof Stockholders to be filed with the SEC.71 Table of ContentsPART IVITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULESDocuments Filed as Part of this Annual Report1. Financial Statements Reports of Independent Registered Public Accounting Firm F- 1Consolidated Balance Sheets at June 30, 2016 and 2015 F- 3Consolidated Statements of Operations for the Years Ended June 30, 2016, 2015 and 2014 F- 4Consolidated Statements of Comprehensive Loss for the Years Ended June 30, 2016, 2015 and 2014 F- 5Consolidated Statements of Stockholders’ Equity for the Years Ended June 30, 2016, 2015 and 2014 F- 6Consolidated Statements of Cash Flows for the Years Ended June 30, 2016, 2015 and 2014 F- 7Notes to Consolidated Financial Statements F- 8 Schedules not indicated above have been omitted because of the absence of the condition under which they are required orbecause the information called for is shown in the consolidated financial statements or in the notes thereto.2. ExhibitsThe Exhibits required by this item are listed in the Exhibit Index. Each management contract and compensatory plan orarrangement is denoted with a “+” in the Exhibit Index.Financial statements and financial statement schedules required to be filed for the registrant under Items 8 or 15 are set forthfollowing the index page at page F-1. Exhibits filed as a part of this report are listed below. Exhibits incorporated by referenceare indicated in parentheses.72 Table of ContentsEXHIBIT INDEX Exhibit No. Description of Exhibit3.1** Amended and Restated Certificate of Incorporation of Zayo Group Holdings, Inc. (incorporated by reference toExhibit 4.1 of our Registration Statement on Form S-8 filed with the SEC on November 4, 2014, File No. 333-199856). 3.2** Amended and Restated Bylaws of Zayo Group Holdings, Inc. (incorporated by reference to Exhibit 4.2 of ourRegistration Statement on Form S-8 filed with the SEC on November 4, 2014, File No. 333-199856). 4.1** Indenture, dated as of January 23, 2015, among Zayo Group, LLC, Zayo Capital, Inc., the guarantors party theretoand The Bank of New York Mellon Trust Company N.A., as trustee (incorporated by reference to Exhibit 4.1 of ourCurrent Report on Form 8-K filed with the SEC on January 23, 2015, File No. 001-36690). 4.2** Indenture, dated as of May 6, 2015, between Zayo Group, LLC, Zayo Capital, Inc., the guarantors party thereto andThe Bank of New York Mellon Trust Company N.A., as trustee (incorporated by reference to Exhibit 4.1 of ourCurrent Report on Form 8-K filed with the SEC on May 7, 2015, File No. 001-36690). 10.1** Stockholders Agreement, dated as of October 22, 2014, between Zayo Group Holdings, Inc., on the one hand, andeach Sponsor listed on the signature pages thereto and each stockholder listed on the signature pages thereto, on theother hand, and any other Person that may become a party to such Agreement after the date and pursuant to theterms thereof (incorporated by reference to Exhibit 10.2 of our Current Report on Form 8-K filed with the SEC onOctober 22, 2014, File No. 001-36690). 10.2** Registration Rights Agreement, dated as of October 22, 2014, among Zayo Group Holdings, Inc. and those Personslisted on Schedule A thereto (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K filedwith the SEC on October 22, 2014, File No. 001-36690). 10.3** Registration Rights Agreement, dated as of January 23, 2015, among Zayo Group, LLC, Zayo Capital, Inc., theguarantors party thereto, and Goldman Sachs & Co., as representative of the several initial purchasers set forth onSchedule I to the Purchase Agreement (incorporated by reference to Exhibit 10.1 of our Current Report on Form 8-K filed with the SEC on January 23, 2015, File No. 001-36690). 10.4** Registration Rights Agreement, dated as of March 9, 2015, among Zayo Group, LLC, Zayo Capital, Inc., theguarantors party thereto, and Barclays Capital Inc., as representative of the several initial purchasers set forth onSchedule I to the Purchase Agreement (incorporated by reference to Exhibit 10.1 of our Current Report on Form 8-K filed with the SEC on March 9, 2015, File No. 001-36690). 10.5** Registration Rights Agreement, dated as of May 6, 2015, among Zayo Group, LLC, Zayo Capital, Inc., theguarantors party thereto, and Morgan Stanley & Co. LLC, as representative of the several initial purchasers set forthon Schedule I to the Purchase Agreement (incorporated by reference to Exhibit 10.2 of our Current Report onForm 8-K filed with the SEC on May 7, 2015, File No. 001-36690). 10.6 ** Registration Rights Agreement, dated April 14, 2016, among Zayo Group, LLC, Zayo Capital, Inc., the subsidiaryguarantors party thereto and Morgan Stanley & Co. LLC, as initial purchaser (incorporated by reference to Exhibit10.1 of our Current Report on Form 8-K filed with the SEC on April 14, 2016, File No. 001-36690). 10.7** Amendment and Restatement Agreement, dated as of May 6, 2015, by and among Zayo Group, LLC, Zayo Capital,Inc., the guarantors party thereto, the lenders party thereto, Morgan Stanley Senior Funding, Inc., as administrativeagent for the term loan facility, and SunTrust Bank, as administrative agent for the revolving loan facility wherebythat certain Credit Agreement, dated as of July 2, 2012, as amended, will be amended and restated in its entirety inthe form of that certain First Amended and Restated Credit Agreement, by and among Zayo Group, LLC and ZayoCapital, Inc., as borrowers, the guarantors party thereto, the lenders party thereto, Morgan Stanley Senior Funding,Inc. and SunTrust Bank (incorporated by reference to Exhibit 10.1 of our Current Report on Form 8-K filed with theSEC on May 7, 2015, File No. 001-36690). 73 Table of Contents10.8** Repricing Amendment to Amended and Restated Credit Agreement, dated as of July 22, 2016, by and among ZayoGroup, LLC, Zayo Capital, Inc., Morgan Stanley Senior Funding, Inc., as term facility administrative agent,SunTrust Bank, as revolving facility administrative agent, and the other lenders signatory thereto (incorporated byreference to Exhibit 10.1 of our Current Report on Form 8-K filed with the SEC on July 25, 2016, File No. 001-36690). 10.9** Agreement of Lease, dated as of February 17, 1998, by and between 60 Hudson Owner LLC (successor to WestportCommunications LLC and Hudson Telegraph Associates L.P., formerly known as Hudson Telegraph Associates), aDelaware limited liability company, Zayo Colocation, Inc. (successor by name change of FiberNet Telecom Group,Inc.), FiberNet Telecom, Inc. (successor by merger to FiberNet Equal Access, L.L.C.), and Zayo Group, LLC (asguarantor), as assigned on January 1, 2001, as amended on January 1, 2001, December 4, 2003, October 29, 2004,March 1, 2007, April 4, 2007, May 26, 2009 and March 12, 2010 (incorporated by reference to Exhibit 10.36 ofZayo Group, LLC’s Registration Statement on Form S-4 filed with the SEC on October 18, 2010, File No. 333-169979). 10.10** Agreement of Lease, dated as of April 1, 2001, between 60 Hudson Owner LLC (successor to WestportCommunications LLC and Hudson Telegraph Associates, L.P., formerly known as Hudson Telegraph Associates), aDelaware limited liability company, FiberNet Telecom, Inc. (successor by merger to FiberNet Equal AccessL.L.C.), Zayo Colocation, Inc. (successor by change of name to FiberNet Telecom Group, Inc.), and Zayo Group,LLC (as guarantor), as assigned on April 1, 2001, as amended on January 30, 2002, November 7, 2002, April 1,2003, October 31, 2003, October 29, 2004, January 31, 2005, January 11, 2007, March 2, 2007, April 4,2007, May 26, 2009 and March 12, 2010 (incorporated by reference to Exhibit 10.37 of Zayo Group, LLC’sRegistration Statement on Form S-4 filed with the SEC on October 18, 2010, File No. 333-169979). 10.11**+ Employment Agreement, dated as of February 15, 2014, between Communications Infrastructure Investments, LLC,Zayo Group, LLC, and Daniel P. Caruso (incorporated by reference to Exhibit 10.1 of Zayo Group, LLC’s CurrentReport on Form 8-K filed with the SEC on February 21, 2014, File No. 333-169979). 10.12**+ Advance Distribution Letter Agreement, dated as of February 15, 2014, between Communications InfrastructureInvestments, LLC, Zayo Group, LLC, and Daniel P. Caruso (incorporated by reference to Exhibit 10.2 of ZayoGroup, LLC’s Current Report on Form 8-K filed with the SEC on February 21, 2014, File No. 333-169979). 10.13**+ Summary of the Performance-Based Incentive Compensation Program (incorporated by reference to Exhibit 10.14of our Amendment No. 3 to Registration Statement on Form S-1 filed with the SEC on October 6, 2014, File No.333-197215). 10.14**+ 2014 Stock Incentive Plan (incorporated by reference to Exhibit 10.15 of our Amendment No. 3 to RegistrationStatement on Form S-1 filed with the SEC on October 6, 2014, File No. 333-197215). 10.15*+ Grant Notice for 2014 Stock Incentive Plan – Restricted Stock Unit Award (Part A Awards) (incorporated byreference to Exhibit 10.23 of our Annual Report on Form 10-K filed with the SEC on September 18, 2015, File No.001-36690). 10.16*+ Grant Notice for 2014 Stock Incentive Plan—Restricted Stock Unit Award (Part B Awards) (incorporated byreference to Exhibit 10.23 of our Annual Report on Form 10-K filed with the SEC on September 18, 2015, File No.001-36690).. 10.17*+ Grant Notice for 2014 Stock Incentive Plan—Restricted Stock Unit Award (Non-Employee Director Awards)(incorporated by reference to Exhibit 10.23 of our Annual Report on Form 10-K filed with the SEC on September18, 2015, File No. 001-36690).. 10.18**+ First Amendment to Employment Agreement, dated as of October 2, 2014, among Communications InfrastructureInvestments, LLC, Zayo Group Holdings, Inc. and Daniel P. Carus o (incorporated by reference to Exhibit 10.19 ofour Amendment No. 3 to Registration Statement on Form S-1 filed with the SEC on October 6, 2014, File No. 333-197215). 74 Table of Contents10.19** Stock Purchase Agreement By and Among Zayo Group, LLC, Latisys-Chicago Holdings Corp., Latisys HoldingsCorp., Latisys-Ashburn Holdings Corp. and Latisys Holdings, LLC dated January 13, 2015 (incorporated byreference to Exhibit 10.4 of our Quarterly Report on Form 10-Q filed with the SEC on February 11, 2015, File No.001-36690). 10.20** Form of Notice of Waiver Pursuant to Section 3.1(d) of the Stockholders Agreement (incorporated by reference toExhibit 10.2 of our Quarterly Report on Form 10-Q filed with the SEC on November 10, 2015, File No. 001-36690). 10.21**First Amendment to Stockholders Agreement, dated as of September 17, 2015, between Zayo Group Holdings, Inc.and each stockholder party thereto(incorporated by reference to Exhibit 10.1 of our Current Report on Form 8-Kfiled with the SEC on September 18, 2015, File No. 001-36690). 21.1* List of Subsidiaries of Zayo Group Holdings, Inc. 23.1*Consent of KPMG LLP 31.1* Certification of Chief Executive Officer of the Registrant, pursuant to Rule 13a-14(a) of the Securities ExchangeAct of 1934. 31.2* Certification of Chief Financial Officer of the Registrant, pursuant to Rule 13a-14(a) of the Securities ExchangeAct of 1934. 32* Certification of the Registrant, pursuant to 18 U.S.C. Section 1350, as adopted, pursuant to Section 906 of theSarbanes-Oxley Act of 2002. 101.INS* XBRL Instance Document 101.SCH* XBRL Schema Document 101.CAL* XBRL Calculation Linkbase Document 101.DEF* XBRL Taxonomy Extension Definition Linkbase Document 101.LAB* XBRL Label Linkbase Document 101.PRE* XBRL Presentation Linkbase Document* Filed or furnished herewith** Incorporated herein by reference+ Management contract and/or compensatory plan or arrangement75 Table of ContentsSignaturesPursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly causedthis report to be signed on its behalf by the undersigned, thereunto duly authorized, this 26 day of August, 2016. ZAYO GROUP HOLDINGS, INC. By: /s/ Ken desGarennes Ken desGarennes Chief Financial Officer Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the followingpersons on behalf of the registrant and in the capacities and on the dates indicated.Signature Title Date /s/ Dan Caruso Chief Executive Officer, Director August 26, 2016Dan Caruso (principal executive officer) /s/ Ken desGarennes Chief Financial Officer August 26, 2016Ken desGarennes (principal financial and accounting officer) /s/ Michael Choe Director August 26, 2016Michael Choe /s/ Rick Connor Director August 26, 2016Rick Connor /s/ Philip Canfield Director August 26, 2016Philip Canfield /s/ Don Gips Director August 26, 2016Don Gips /s/ Linda Rottenberg Director August 26, 2016Linda Rottenberg /s/ Nina Richardson Director August 26, 2016Nina Richardson 76 th Table of Contents Report of Independent Registered Public Accounting FirmThe Board of Directors and StockholdersZayo Group Holdings, Inc.:We have audited the accompanying consolidated balance sheets of Zayo Group Holdings, Inc. and subsidiaries (the Company) asof June 30, 2016 and 2015, and the related statements of operations, comprehensive loss, stockholders’ equity, and cash flows foreach of the years in the three ‑year period ended June 30, 2016. These consolidated financial statements are the responsibility ofthe Company’s management. Our responsibility is to express an opinion on these consolidated financial statements based on ouraudits.We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board ( United States ).Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statementsare free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosuresin the financial statements. An audit also includes assessing the accounting principles used and significant estimates made bymanagement, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonablebasis for our opinion.In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial positionof the Company as of June 30, 2016 and 2015, and the results of its operations and its cash flows for each of the years in the three‑year period ended June 30, 2016, in conformity with U.S. generally accepted accounting principles.We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), theCompany’s internal control over financial reporting as of June 30, 2016, based on criteria established in Internal Control –Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO), andour report dated August 26, 2016 expressed an adverse opinion on the effectiveness of the Company’s internal control overfinancial reporting./s/ KPMG LLPDenver, Colorado August 26, 2016 F- 1 Table of ContentsReport of Independent Registered Public Accounting FirmThe Board of Directors and StockholdersZayo Group Holdings, Inc.:We have audited Zayo Group Holdings, Inc. and subsidiaries’ (the Company’s) internal control over financial reporting as of June30, 2016, based on criteria established in Internal Control ‑ Integrated Framework (2013) issued by the Committee of SponsoringOrganizations of the Treadway Commission (COSO) . The Company's management is responsible for maintaining effectiveinternal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting,included in the accompanying Management’s Report on Internal Control Over Financial Reporting (Item 9A) . Our responsibilityis to express an opinion on the Company's internal control over financial reporting based on our audit.We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States).Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal controlover financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal controlover financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operatingeffectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as weconsidered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding thereliability of financial reporting and the preparation of financial statements for external purposes in accordance with generallyaccepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that(1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions ofthe assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation offinancial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of thecompany are being made only in accordance with authorizations of management and directors of the company; and (3) providereasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’sassets that could have a material effect on the financial statements.Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also,projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequatebecause of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such that thereis a reasonable possibility that a material misstatement of the company’s annual or interim financial statements will not beprevented or detected on a timely basis. Material weaknesses have been identified and are included in management’s assessment.The material weaknesses related to an insufficient number of adequately trained employees with respect to the COSO 2013Framework; ineffective monitoring activities over the information technology organization; ineffective general informationtechnology controls, specifically program change and user access controls, over several technology systems; and inadequatelydesigned and documented management review control and monitoring activities over the accounting for revenue recognitioncollectability criterion.We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), theconsolidated balance sheets of the Company as of June 30, 2016 and 2015, and the related consolidated statements of operations,comprehensive loss, stockholders’ equity and cash flows for each of the years in the three-year period ended June 30, 2016. Thismaterial weakness was considered in determining the nature, timing, and extent of audit tests applied in our audit of the 2016consolidated financial statements, and this report does not affect our report dated August 26, 2016, which expressed anunqualified opinion on those consolidated financial statements .In our opinion, because of the effect of the aforementioned material weakness on the achievement of the objectives of the controlcriteria, the Company has not maintained effective internal control over financial reporting as of June 30, 2016, based on criteriaestablished in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of theTreadway Commission (COSO) ./s/ KPMG LLPDenver, ColoradoAugust 26, 2016F- 2 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESCONSOLIDATED BALANCE SHEETS(in millions, except share amounts) June 30, June 30, 2016 2015Assets Current assets Cash and cash equivalents $170.7 $308.6Trade receivables, net of allowance of $7.5 and $3.4 as of June 30, 2016 and June 30,2015, respectively 148.4 88.0Prepaid expenses 68.8 37.3Deferred income taxes, net — 129.5Other assets 9.2 4.5Total current assets 397.1 567.9Property and equipment, net 4,079.5 3,299.2Intangible assets, net 934.9 948.3Goodwill 1,214.5 1,224.4Deferred income taxes, net 7.0 —Other assets 94.5 54.8Total assets $6,727.5 $6,094.6Liabilities and stockholders' equity Current liabilities Current portion of long-term debt $ — $16.5Accounts payable 97.0 40.0Accrued liabilities 225.7 182.2Accrued interest 28.6 57.2Capital lease obligations, current 5.8 4.4Deferred revenue, current 129.4 86.6Total current liabilities 486.5 386.9Long-term debt, non-current 4,085.3 3,652.2Capital lease obligation, non-current 44.9 28.3Deferred revenue, non-current 793.3 612.7Deferred income taxes, net 41.3 174.7Other long-term liabilities 57.0 28.6Total liabilities 5,508.3 4,883.4Commitments and contingencies (Note 14) Stockholders' equity Preferred stock, $0.001 par value - 50,000,000 shares authorized; no shares issued andoutstanding as of June 30, 2016 and June 30, 2015, respectively — —Common stock, $0.001 par value - 850,000,000 shares authorized; 242,649,498 and243,008,679 shares issued and outstanding as of June 30, 2016 and June 30, 2015,respectively 0.2 0.2Additional paid-in capital 1,777.6 1,705.8Accumulated other comprehensive income/(loss) 4.5 (7.9)Accumulated deficit (563.1) (486.9)Total stockholders' equity 1,219.2 1,211.2Total liabilities and stockholders' equity $6,727.5 $6,094.6 The accompanying notes are an integral part of these consolidated financial statements.F- 3 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESCONSOLIDATED STATEMENTS OF OPERATIONS(in millions, except per share data) Year Ended June 30, 2016 2015 2014Revenue $1,721.7 $1,347.1 $1,123.2Operating costs and expenses Operating costs (excluding depreciation and amortization and including stock-based compensation—Note 12) 578.7 413.5 344.2Selling, general and administrative expenses (including stock-basedcompensation—Note 12) 386.4 358.4 384.7Depreciation and amortization 516.3 406.2 338.2Total operating costs and expenses 1,481.4 1,178.1 1,067.1Operating income 240.3 169.0 56.1Other expenses Interest expense (220.1) (214.0) (203.5)Loss on extinguishment of debt (33.8) (94.3) (1.9)Foreign currency (loss)/gain on intercompany loans (53.8) (24.4) 4.7Other (expense)/income, net (0.3) (0.4) 0.3Total other expenses, net (308.0) (333.1) (200.4)Loss from operations before income taxes (67.7) (164.1) (144.3)Provision/(benefit) for income taxes 8.5 (8.8) 37.3Loss from continuing operations (76.2) (155.3) (181.6)Earnings from discontinued operations, net of income taxes — — 2.3Net loss $(76.2) $(155.3) $(179.3)Weighted-average shares used to compute net loss per share: Basic and diluted 243.3 235.4 223.0Loss from continuing operations per share: Basic and diluted $(0.31) $(0.66) $(0.81)Earnings from discontinued operations per share: Basic and diluted — — 0.01Net loss per share: Basic and diluted $(0.31) (0.66) (0.80) The accompanying notes are an integral part of these consolidated financial statements.F- 4 Table of Contents ZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESCONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS(in millions) Year Ended June 30, 2016 2015 2014Net loss $(76.2) $(155.3) $(179.3)Foreign currency translation adjustments 12.4 (22.3) 19.2Comprehensive loss $(63.8) $(177.6) $(160.1) The accompanying notes are an integral part of these consolidated financial statements.F- 5 Table of Contents ZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESCONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY(in millions, except share amounts) Common Shares Common Stock Additional paid-in Capital Accumulated Other Comprehensive (Loss)/Income Accumulated Deficit Note receivable from shareholder Total Stockholders' EquityBalance at June 30, 2013 223,000,000 $0.2 $763.2 $(4.8) $(152.3) $ — $606.3Capital contributed (cash) — — 22.0 — — (22.0) —Stock-based compensation — — 0.4 — — — 0.4Foreign currency translation adjustment — — — 19.2 — — 19.2CII Preferred Units issued for CorelinkData Centers, LLC purchase — — 1.6 — — — 1.6Spin off on Onvoy, LLC — — (31.8) — — — (31.8)Net loss — — — — (179.3) — (179.3)Balance at June 30, 2014 223,000,000 $0.2 $755.4 $14.4 $(331.6) $(22.0) $416.4Proceeds from issuance of common stock 20,008,679 — 387.2 — — — 387.2Reclassification of common unit liabilityto additional paid in capital — — 490.2 — — — 490.2Stock-based compensation — — 95.0 — — — 95.0Non-cash settlement of note receivablefrom Communications InfrastructureInvestments, LLC — — (22.0) — — 22.0 —Foreign currency translation adjustment — — — (22.3) — — (22.3)Net loss — — — — (155.3) — (155.3)Balance at June 30, 2015 243,008,679 $0.2 $1,705.8 $(7.9) $(486.9) $ — $1,211.2Stock-based compensation 3,114,939 — 152.9 — — — 152.9Foreign currency translation adjustment — — — 12.4 — — 12.4Repurchase and retirement of commonshares (3,474,120) — (81.1) — — — (81.1)Net loss — — — — (76.2) — (76.2)Balance at June 30, 2016 242,649,498 $0.2 $1,777.6 $4.5 $(563.1) $ — $1,219.2 The accompanying notes are an integral part of these consolidated financial statements. F- 6 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESCONSOLIDATED STATEMENTS OF CASH FLOWS(in millions) Year Ended June 30, 2016 2015 2014Cash flows from operating activities Net loss $(76.2) $(155.3) $(179.3)Earnings from discontinued operations, net of income taxes — — 2.3Loss from continuing operations (76.2) (155.3) (181.6)Adjustments to reconcile net loss to net cash provided by operating activities Depreciation and amortization 516.3 406.2 338.2Loss on extinguishment of debt 33.8 94.3 1.9Non-cash interest expense 11.9 19.7 22.1Stock-based compensation 155.9 200.7 253.7Amortization of deferred revenue (111.5) (72.1) (55.6)Additions to deferred revenue 184.0 149.1 163.8Foreign currency loss/(gain) on intercompany loans 53.8 24.4 (4.7)Excess tax benefit from stock-based compensation (7.9) — —Deferred income taxes (2.8) (13.3) 24.2Provision for bad debts 3.9 1.9 1.9Non-cash loss on investments 1.2 0.9 —Changes in operating assets and liabilities, net of acquisitions Trade receivables 1.9 (11.2) 20.5Prepaid expenses 18.7 (2.9) (1.4)Accounts payable and accrued liabilities (36.0) (22.1) (6.6)Other assets and liabilities (33.0) (14.9) (9.9)Net cash provided by operating activities 714.0 605.4 566.5Cash flows from investing activities Purchases of property and equipment (704.1) (530.4) (360.8)Cash paid for acquisitions, net of cash acquired (437.5) (855.7) (393.3)Net cash used in investing activities (1,141.6) (1,386.1) (754.1)Cash flows from financing activities Proceeds from debt 929.3 1,787.3 423.6Proceeds from revolving credit facility — — 195.0Proceeds from equity offerings and contributions — 413.7 —Direct costs associated with initial public offering — (26.5) —Distribution to parent — — (0.1)Principal payments on long-term debt (535.0) (1,288.5) (18.0)Payment of early redemption fees on debt extinguished (20.3) (62.6) —Principal payments on capital lease obligations (4.9) (3.5) (7.9)Payment on revolving credit facility — — (195.0)Payment of debt issue costs (4.2) (24.2) (4.9)Common stock repurchases (81.1) — —Excess tax benefit from stock-based compensation 7.9 — —Net cash provided by financing activities 291.7 795.7 392.7Net cash flows from continuing operations (135.9) 15.0 205.1Net cash flows from discontinued operations Operating activities — — 15.7Investing activities — — (5.1)Financing activities — — (7.4)Net cash flows from discontinued operations — — 3.2Effect of changes in foreign exchange rates on cash (2.0) (3.8) 1.0Net (decrease)/increase in cash and cash equivalents (137.9) 11.2 206.1Continuing operations: Cash and cash equivalents, beginning of year $308.6 $297.4 91.3Cash flows from continuing operations (135.9) 15.0 205.1Effect of changes in foreign exchange rates on cash (2.0) (3.8) 1.0Cash and cash equivalents, end of period $170.7 $308.6 $297.4Discontinued operations: Cash and cash equivalents, beginning of year $ — $ — 15.9Cash flows from discontinued operations — — 3.2Cash included in Onvoy, LLC spin-off — — (19.1)Cash and cash equivalents, end of period $ — $ — $ —Supplemental disclosure of non-cash investing and financing activities: Cash paid for interest, net of capitalized interest - continuing operations $228.5 $191.2 $175.3Cash paid for interest, net of capitalized interest - discontinued operations — — 0.4Cash paid for income taxes 14.0 14.5 5.7Non-cash purchases of equipment through capital leasing 7.6 6.8 10.5Increase in accounts payable and accrued expenses for purchases of property and equipment - continuing operations 25.7 8.4 10.9 Refer to Note 3 — Acquisitions for details regarding the Company’s recent acquisitions and Note 4 — Spin-off of Business for detailsregarding the Company’s discontinued operations.The accompanying notes are an integral part of these consolidated financial statements. F- 7 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (1) ORGANIZATION AND DESCRIPTION OF BUSINESSZayo Group Holdings, Inc., a Delaware corporation, was formed on November 13, 2007, and is the parent company of anumber of subsidiaries engaged in bandwidth infrastructure provision and services. Zayo Group Holdings, Inc. and itssubsidiaries are collectively referred to as “Zayo Group Holdings” or the “Company.” The Company’s primary operatingsubsidiary is Zayo Group, LLC (“ZGL”). Headquartered in Boulder, Colorado, the Company operates bandwidth infrastructureassets, including fiber networks and data centers, in the United States, Canada and Europe to offer:·Dark Fiber Solutions, including dark fiber and mobile infrastructure services.·Colocation and Cloud Infrastructure, including cloud and colocation services.·Network Connectivity, including wavelengths, Ethernet, IP and SONET services.·Other services, including Zayo Professional Services (“ZPS”), voice and unified communications.(2) BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIESa. Basis of PresentationThe accompanying consolidated financial statements include all the accounts of the Company and its wholly-ownedsubsidiaries. All inter-company accounts and transactions have been eliminated in consolidation. The accompanying consolidatedfinancial statements include the accounts of the Company and its wholly-owned subsidiaries and have been prepared inaccordance with accounting principles generally accepted in the United States (“GAAP”) and the instructions to Form 10-K andRegulation S-X. In the opinion of management, all adjustments considered necessary for the fair presentation of financialposition, results of operations and cash flows of the Company have been included herein. Unless otherwise noted, dollar amountsand disclosures throughout the Notes to the consolidated financial statements relate to the Company's continuing operations andare presented in millions of dollars.The Company’s fiscal year ends June 30 each year, and we refer to the fiscal year ended June 30, 2016 as “Fiscal 2016,”June 30, 2015 as “Fiscal 2015,” and the fiscal year ended June 30, 2014 as “Fiscal 2014.”b. Earnings or Loss per ShareBasic earnings or loss per share attributable to the Company’s common shareholders is computed by dividing net earningsor loss attributable to common shareholders by the weighted average number of common shares outstanding for theperiod. Diluted earnings or loss per share attributable to common shareholders presents the dilutive effect, if any, on a per sharebasis of potential common shares (such as restricted stock units) as if they had been vested or converted during the periodspresented. No such items were included in the computation of diluted loss per share for the years ended June 30, 2016, 2015 and2014 because the Company incurred a loss from continuing operations in each of these periods and the effect of inclusion wouldhave been anti-dilutive.c. Foreign Currency TranslationFor operations outside the U.S. that have functional currencies other than the U.S. dollar, assets and liabilities are translatedto U.S. dollars at period-end exchange rates, and revenue, expenses and cash flows are translated using monthly average exchangerates during the year. Gains or losses resulting from currency translation are recorded as a component of accumulated othercomprehensive (loss)/income in stockholders’ equity and in the consolidated statements of comprehensive loss. The Companyconsiders its investments in its foreign subsidiaries to be permanently reinvested.F- 8 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) d. Use of EstimatesThe preparation of the Company’s consolidated financial statements in conformity with GAAP requires management tomake estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosures of contingent assets andliabilities at the date of the financial statements and the reported amounts of revenue and expense during the reporting period.Significant estimates are used when establishing allowances for doubtful accounts and accruals for billing disputes, determininguseful lives for depreciation and amortization and accruals for exit activities associated with real estate leases, assessing the needfor impairment charges (including those related to intangible assets and goodwill), determining the fair values of assets acquiredand liabilities assumed in business combinations, accounting for income taxes and related valuation allowances against deferredtax assets, determining the defined benefit costs and defined benefit obligations related to post-employment benefits, andestimating the common unit and restricted stock unit grant fair values used to compute the stock-based compensation liability andexpense. Management evaluates these estimates and judgments on an ongoing basis and makes estimates based on historicalexperience, current conditions, and various other assumptions that are believed to be reasonable under the circumstances. Theresults of these estimates form the basis for making judgments about the carrying values of assets and liabilities as well asidentifying and assessing the accounting treatment with respect to commitments and contingencies. Actual results may differ fromthese estimates.e . Cash and Cash Equivalents and Restricted CashThe Company considers all highly liquid investments with original maturities of three months or less to be cash and cashequivalents. Cash equivalents are stated at cost, which approximates fair value. Restricted cash consists of cash balances held byvarious financial institutions as collateral for letters of credit and surety bonds. These balances are reclassified to cash and cashequivalents when the underlying obligation is satisfied, or in accordance with the governing agreement. Restricted cash balancesexpected to become unrestricted during the next twelve months are recorded as current assets. As of June 30, 2016 and 2015, theCompany had a non-current restricted cash balance of $4.5 million and $4.8 million, respectively.f. Trade ReceivablesTrade receivables are recorded at the invoiced amount and do not bear interest. The Company maintains an allowance fordoubtful accounts for estimated losses inherent in its trade receivable portfolio. In establishing the required allowance,management considers historical losses adjusted to take into account current market conditions and the customer’s financialcondition, and the age of receivables and current payment patterns. Account balances are charged off against the allowance afterall means of collection have been exhausted and the potential for recovery is considered remote.g. Property and EquipmentThe Company’s property and equipment includes assets in service and under construction or development.Property and equipment is recorded at historical cost or acquisition date fair value. Costs associated directly with networkconstruction, service installations, and development of business support systems, including employee-related costs, arecapitalized. Depreciation is calculated on a straight-line basis over the asset’s estimated useful life from the date placed intoservice or acquired. Management periodically evaluates the estimates of the useful life of property and equipment by reviewinghistorical usage, with consideration given to technological changes, trends in the industry, and other economic factors that couldimpact the network architecture and asset utilization.Equipment acquired under capital leases is recorded at the lower of the fair value of the asset or the net present value of theminimum lease payments at the inception of the lease. Depreciation of equipment held under capital leases is included indepreciation and amortization expense, and is calculated on a straight-line basis over the estimated useful lives of the assets, orthe related lease term, whichever is shorter.F- 9 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) Management reviews property and equipment for impairment whenever events or changes in circumstances indicate thatthe carrying value of its property and equipment may not be recoverable. An impairment loss is recognized when the assets’carrying value exceeds both the assets’ estimated undiscounted future cash flows and the assets’ estimated fair value.Measurement of the impairment loss is then based on the estimated fair value of the assets. Considerable judgment is required toproject such future cash flows and, if required, to estimate the fair value of the property and equipment and the resulting amountof the impairment. No impairment charges were recorded for property and equipment during the years ended June 30, 2016, 2015or 2014.The Company capitalizes interest for assets that require a period of time to get them ready for their intended use. Theamount of interest capitalized is based on the Company’s weighted average effective interest rate for outstanding debt obligationsduring the respective accounting period.h. Goodwill and Acquired IntangiblesIntangible assets arising from business combinations, such as acquired customer contracts and relationships, (collectively“customer relationships”), are initially recorded at fair value. The Company amortizes customer relationships primarily over anestimated life of 10 to 20 years using an amortization method that approximates the timing in which the Company expects toreceive the benefit from the acquired customer relationship assets. Goodwill represents the excess of the purchase price over thefair value of the net identifiable assets acquired in a business combination. Goodwill is reviewed for impairment at least annuallyin April, or more frequently if a triggering event occurs between impairment testing dates. The Company’s impairmentassessment begins with a qualitative assessment to determine whether it is more likely than not that the fair value of a reportingunit is less than its carrying value. The qualitative assessment includes comparing the overall financial performance of thereporting units against the planned results used in the last quantitative goodwill impairment test. Additionally, each reportingunit’s fair value is assessed in light of certain events and circumstances, including macroeconomic conditions, industry andmarket considerations, cost factors, and other relevant entity- and reporting unit-specific events. The selection and assessment ofqualitative factors used to determine whether it is more likely than not that the fair value of a reporting unit exceeds the carryingvalue involves significant judgments and estimates. If it is determined under the qualitative assessment that it is more likely thannot that the fair value of a reporting unit is less than its carrying value, then a two-step quantitative impairment test is performed.Under the first step, the estimated fair value of the reporting unit is compared with its carrying value (including goodwill). If thefair value of the reporting unit exceeds its carrying value, step two does not need to be performed. If the estimated fair value ofthe reporting unit is less than its carrying value, an indication of goodwill impairment exists for the reporting unit and theenterprise must perform step two of the impairment test (measurement). Under step two, an impairment loss is recognized for anyexcess of the carrying amount of the reporting unit’s goodwill over the implied fair value of that goodwill. The implied fair valueof goodwill is determined by allocating the fair value of the reporting unit in a manner similar to a purchase price allocation inacquisition accounting. The residual amount after this allocation is the implied fair value of the reporting unit goodwill. Fair valueof the reporting unit under the two-step assessment is determined using a combination of both income and market-based variationapproaches. The inputs and assumptions to valuation methods used to estimate the fair value of reporting units involvessignificant judgments.The Company reviews its indefinite-lived intangible assets for impairment at least annually in April and involvescomparing the estimated fair value of indefinite-lived intangible assets to their respective carrying values. To the extent thecarrying value of indefinite-lived intangible assets exceeds the fair value, the Company will recognize an impairment loss for thedifference. The Company performed a qualitative assessment to determine whether it was more likely than not that the fair valueof these assets was in excess of the carrying value for the year ended June 30, 2016, 2015 or 2014 and has concluded there is noindication of impairment.Intangible assets with finite useful lives are amortized over their respective estimated useful lives and reviewed forimpairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable.No impairment charges were recorded for goodwill or intangible assets during the years ended June 30, 2016, 2015 or 2014.F- 10 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) i. Derivative Financial InstrumentsDerivative instruments are recorded in the balance sheet as either assets or liabilities, measured at fair value. The Companyhas historically entered into interest rate swaps to convert a portion of its floating-rate debt to fixed-rate debt and has not appliedhedge accounting; therefore, the changes in the fair value of the interest rate swaps are recognized in earnings as adjustments tointerest expense. The principal objectives of the derivative instruments are to minimize the cash flow interest rate risks associatedwith financing activities. The Company does not use financial instruments for trading purposes. The Company utilized interestrate swap contracts in connection with debt instruments entered into during the July 2012 financing transactions.j. Revenue RecognitionThe Company recognizes revenues derived from leasing fiber optic telecommunications infrastructure and the provision oftelecommunications and colocation services when the service has been provided and when there is persuasive evidence of anarrangement, the fee is fixed or determinable, customer acceptance has been obtained with relevant contract terms, and collectionof the receivable is reasonably assured. Taxes collected from customers and remitted to a governmental authority are reported ona net basis and are excluded from revenue.Most revenue is billed in advance on a fixed-rate basis and the remainder is billed in arrears on a transactional basisdetermined by customer usage. The Company often bills customers for upfront charges, which are non-refundable. These chargesrelate to activation fees, installation charges or prepayments for future services and are influenced by various business factorsincluding how the Company and customer agree to structure the payment terms. These upfront charges are deferred andrecognized over the underlying contractual term. The Company also defers costs associated with customer activation andinstallation to the extent of upfront amounts received from customers, which are recognized as expense over the same period forwhich the associated revenue is recognized.The Company typically records revenues from leases of dark fiber, including indefeasible rights-of-use (“IRU”)agreements, over the term that the customer is given exclusive access to the assets. Dark fiber IRU agreements generally requirethe customer to make a down payment upon the execution of the agreement with monthly IRU fees paid over the contract term;however, in some cases, the Company receives up to the entire lease payment at the inception of the lease and recognizes therevenue ratably over the lease term. Revenue related to professional services to provide network management and technicalsupport is recognized as services are provided.In determining the appropriate amount of revenue and related reserves to reflect in its consolidated financial statements,management evaluates payment history, credit ratings, customer financial performance, and historical or potential billing disputesand related estimates are based on these factors and assumptions.k. Operating Costs and ExpensesThe Company’s operating costs and expenses consist primarily of network expense (“Netex”), compensation and benefits,network operations expense (“Netops”), stock-based compensation, other expenses, and depreciation and amortization.Netex consists of third-party network service costs resulting from the leasing of certain network facilities, primarily leasesof circuits and dark fiber, from carriers to augment the Company’s owned infrastructure, for which it is generally billed a fixedmonthly fee. Netex also includes colocation facility costs for rent and license fees paid to the landlords of the buildings in whichthe Company’s colocation business operates, along with the utility costs to power those facilities.Compensation and benefits expenses include salaries, wages, incentive compensation and benefits. Employee-related coststhat are directly associated with network construction, service installations and development of business support systems arecapitalized and amortized to operating costs and expenses over the customer life. Compensation andF- 11 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) benefits expenses related to the departments attributed to generating revenue are included in “Operating costs” whilecompensation and benefits expenses related to the sales, product, and corporate departments are included in “Selling, general andadministrative expenses” in the consolidated statements of operations.Netops expense include all of the non-personnel related expenses of operating and maintaining the network infrastructure,including contracted maintenance fees, right-of-way costs, rent for cellular towers and other places where fiber is located, poleattachment fees, and relocation expenses. Netops expense is included in “Operating costs” in the consolidated statements ofoperations.Stock-based compensation expense consists of the fair value of equity based awards granted to employees and independentdirectors recognized over their applicable vesting period. Stock-based compensation expense is included, based on theresponsibilities of the awarded recipient, in either “Operating costs” or “Selling, general and administrative expenses” in theconsolidated statements of operations. For additional information regarding our stock-based compensation expense, see Note 12 –Stock-Based Compensation .Other expenses include expenses such as property tax, franchise fees, and colocation facility maintenance, which relate tooperating our network and are therefore included in “Operating costs” as well as travel, office expense and other administrativecosts that are included in “Selling, general and administrative expenses”. Other expenses are included in either “Operating costs”or “Selling, general and administrative expenses” in the consolidated statement of operations depending on their relationship togenerating revenue or association with sales and administration.Transaction costs include expenses associated with professional services (i.e. legal, accounting, regulatory, etc.) rendered inconnection with acquisitions or disposals (including spin-offs), travel expense, severance expense incurred on the date ofacquisition or disposal, and other direct expenses incurred that are associated with signed and/or closed acquisitions or disposals.Transaction costs are included in “Selling, general and administrative expenses” in the consolidated statements of operations.Related to Netex, the Company recognizes the cost of these facilities or services when it is incurred in accordance withcontractual requirements. The Company routinely disputes incorrect billings. The most prevalent types of disputes includedisputes for circuits that are not disconnected on a timely basis and usage bills with incorrect records. Depending on the type andcomplexity of the issues involved, it may take several quarters to resolve disputes.In determining the amount of such operating expenses and related accrued liabilities to reflect in its consolidated financialstatements, management considers the adequacy of documentation of disconnect notices, compliance with prevailing contractualrequirements for submitting such disconnect notices and disputes to the provider of the facilities, and compliance with itsinterconnection agreements with these carriers. Significant judgment is required in estimating the ultimate outcome of the disputeresolution process, as well as any other costs that may be incurred to conclude the negotiations or settle any litigation.l. Stock-Based CompensationIn October 2014, the Company adopted a new incentive plan. The plan includes incentive cash compensation (ICC) andequity (in the form of restricted stock units). Grants under the new incentive plan are made quarterly for all participants. TheCompany recognizes all stock-based awards to employees and independent directors, based on their grant-date fair values and theCompany’s estimates of forfeitures. The Company recognizes the fair value of outstanding awards as a charge to operations overthe vesting period.The Company uses the straight-line method to recognize share-based compensation expense for outstanding share awardsthat do not contain a performance condition.Prior to the Company’s initial public offering (“IPO”), the Company was given authorization by CommunicationsInfrastructure Investments, LLC (“CII”) to award 625,000,000 of CII’s common units as profits interests to employees,F- 12 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) directors, and affiliates of the Company. The common units were historically considered to be stock-based compensation withterms that required the awards to be classified as liabilities due to cash settlement features. The vested portion of the awards wasreported as a liability and the fair value was re-measured at each reporting date until the date of settlement, with a correspondingcharge (or credit) to stock-based compensation expense. In connection with the Company’s IPO and the related amendment tothe CII operating agreement, there was a deemed modification to the stock compensation arrangements with the Company’semployees and directors. As a result, previously issued common units which were historically accounted for as liability awards,became classified as equity awards.Determining the fair value of certain share-based awards at the grant date and subsequent reporting dates requires judgment.If actual results differ significantly from these estimates, stock-based compensation expense and the Company’s results ofoperations could be materially impacted.For additional information regarding our stock-based compensation, see Note 12 – Stock-Based Compensation . m. Legal CostsCosts incurred to hire and retain external legal counsel to advise us on regulatory, litigation and other matters is expensed asthe related services are received.n. Income TaxesThe Company recognizes income taxes under the asset and liability method. Deferred tax assets and liabilities arerecognized for the future tax consequences attributable to differences between the financial statement carrying amounts ofexisting assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax ratesexpected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. Theeffect on deferred tax assets and liabilities of a change in tax rates is recognized in earnings in the period that includes theenactment date.Estimating the future tax benefit associated with deferred tax assets requires significant judgment. Deferred tax assets arisefrom a variety of sources, the most significant being: tax losses that can be carried forward to be utilized against taxable incomein future years, deferred revenue and expenses recognized in the Company’s financial statements but disallowed in theCompany’s tax return until the associated cash flow occurs.The Company records a valuation allowance to reduce its deferred tax assets to the amount that is expected to berecognized. The valuation allowance is established if, based on available evidence, it is more-likely-than-not that all or someportion of the asset will not be realized due to the inability to generate sufficient taxable income in the period and/or of thecharacter necessary to utilize the benefit of the deferred tax asset. When evaluating whether it is more-likely-than-not that all orsome portion of the deferred tax asset will not be realized, all available evidence, both positive and negative, that may affect therealizability of deferred tax assets is identified and considered in determining the appropriate amount of the valuation allowance.The Company continues to monitor its financial performance and other evidence each quarter to determine the appropriateness ofthe Company’s valuation allowance. At each balance sheet date, existing assessments are reviewed and, if necessary, revised toreflect changed circumstances.The analysis of the Company’s ability to utilize its net operating loss carryforward (“NOL”) balance is based on theCompany’s forecasted taxable income. The forecasted assumptions approximate the Company’s best estimates, including marketgrowth rates, future pricing, market acceptance of the Company’s products and services, future expected capital investments anddiscount rates. If the Company is unable to meet its taxable income forecasts in future periods the Company may change itsconclusion about the appropriateness of the valuation allowance which could create a substantial income tax expense in theCompany’s consolidated statement of operations in the period such change occurs.F- 13 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) Deferred tax liabilities related to investments in foreign subsidiaries and foreign corporate joint ventures that are essentiallypermanent in duration are not recognized until it becomes apparent that such amounts will reverse in the foreseeable future.The Company records interest related to unrecognized tax benefits and penalties in the provision for income taxes.o . Fair Value of Financial InstrumentsRelevant accounting literature defines and establishes a framework for measuring fair value, and requires expandeddisclosures about fair value measurements. It also emphasizes that fair value is a market-based measurement, not an entity-specific measurement, and defines fair value as the price that would be received to sell an asset or transfer a liability in an orderlytransaction between market participants at the measurement date. Valuation techniques that may be used include the marketapproach (comparable market prices), the income approach (present value of future income or cash flow) and the cost approach(cost to replace the service capacity of an asset or replacement cost), which are each based upon observable and unobservableinputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect theCompany’s market assumptions.Fair Value HierarchyA fair value hierarchy is established that requires an entity to maximize the use of observable inputs and minimize the useof unobservable inputs when measuring fair value. A financial instrument’s categorization within the fair value hierarchy is basedupon the lowest level of input that is significant to the fair value measurement. The three levels of inputs that are used to measurefair value are:Level 1Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that theCompany has the ability to access.Level 2Inputs to the valuation methodology include:·quoted prices for similar assets or liabilities in active markets;·quoted prices for identical or similar assets or liabilities in inactive markets;·inputs other than quoted prices that are observable for the asset or liability; and·inputs that are derived principally from or corroborated by observable market data by correlation or other means.If the asset or liability has a specified (contractual) term, the Level 2 input must be observable for substantially the full termof the asset or liability.Level 3Inputs to the valuation methodology are unobservable and significant to the fair value measurement.The Company views fair value as the price that would be received from selling an asset or paid to transfer a liability in anorderly transaction between market participants at the measurement date. When determining the fair value measurements forassets and liabilities required to be recorded at fair value, management considers the principal or most advantageous market inwhich it would transact and considers assumptions that market participants would use when pricing the asset or liability, such asinherent risk, transfer restrictions, and risk of nonperformance.F- 14 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) p . Concentration of Credit RiskFinancial instruments that potentially subject the Company to concentration of credit risk consist principally of cashinvestments and accounts receivable. The Company’s cash and cash equivalents are primarily held in commercial bank accountsin the United States and Great Britain. The Company limits its cash investments to high-quality financial institutions in order tominimize its credit risk.During the years ended June 30, 2016, 2015 and 2014, the Company had no single customer that exceeded 10% of totalrevenue. The Company’s trade receivables, which are unsecured, are geographically dispersed. As of June 30, 2016 and 2015, theCompany had one customer with a trade receivable balance of 11% and 10%, respectively, of total receivables.q . Employee BenefitsAs a result of the Allstream acquisition (see Note 3 – Acquisitions ) the Company acquired certain defined benefit pensionplans, a defined contribution plan and other non-pension post-employment benefit plans. The cost of providing benefits under thedefined benefit pension plans and other non-pension post-employment benefits is determined annually using the projected unitcredit method. These actuarial valuations require the use of assumptions, including the discount rate, expected rate of return onplan assets, price inflation, expected future salary increases, turnover, retirement, and mortality rate calculations to measuredefined benefit obligations. The discount rate used to calculate the present values of the defined benefit obligation is determinedby reference to market interest rates of high quality corporate bonds at the end of the reporting period. The net definedliability/(benefit) recognized in our consolidated balance sheet comprises the present value of the projected benefit obligationsless the fair value of plan assets. Annually, all actuarial gains and losses arising from changes in the present value of the definedbenefit obligations are recognized as a component of other comprehensive loss, and are included in accumulated othercomprehensive (loss)/income. The changes in the fair value of plan assets are determined in an accounting valuation prepared byan independent actuary and recognized in the statement of operations during the period in which they occur. Any minimumfunding requirements are considered in the calculation of the economic benefit. For plans recognized by a net defined benefitliability, minimum funding requirements can also result in an increase in the liability. The Company recognizes any decrease inan asset or increase in a liability as a result of the above in the statement of operations during the period in which they occur. TheCompany recognizes payments to the defined contribution plans as an expense in the period the employee service is incurred.r. Condensed Financial Information of the RegistrantThe restricted net assets of Zayo Group Holdings exceeds 25% of its consolidated net assets due to restrictions under theCredit Agreement and Notes (as defined in Note 8 – Long-term debt ). Zayo Group Holdings is a holding company with no assetsor liabilities of its own or operations other than those of its subsidiary ZGL. Accordingly, the financial position, results ofoperations, comprehensive loss and cash flows of Zayo Group Holdings and ZGL are the same, except that at June 30, 2016 ZayoGroup Holdings had cash of $0.7 million. As such, the condensed financial information of Zayo Group Holdings is not presentedas it is not meaningful.Recently Issued Accounting PronouncementsIn February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”)2016-02, Leases . The new guidance supersedes existing guidance on accounting for leases in Topic 840 and is intended toincrease the transparency and comparability of accounting for lease transactions. ASU 2016-02 requires most leases to berecognized on the balance sheet. Lessees will need to recognize a right-of-use asset and a lease liability for virtually all leases.The liability will be equal to the present value of lease payments. The asset will be based on the liability, subject to adjustment,such as for initial direct costs. For income statement purposes, the FASB retained a dual model, requiring leases to be classified aseither operating or finance. Lessor accounting remains similar to the current model, but updated to align with certain changes tothe lessee model and the new revenue recognition standard (ASUF- 15 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) 2014-09). The ASU will require both quantitative and qualitative disclosures regarding key information about leasingarrangements. The standard is effective for fiscal years, and interim periods within those fiscal years, beginning afterDecember 15, 2018. Early adoption is permitted. The new standard must be adopted using a modified retrospective transition, andprovides for certain practical expedients. Transition will require application of the new guidance at the beginning of the earliestcomparative period presented. The Company is evaluating the effect that ASU 2016-02 will have on its consolidated financialstatements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of thestandard on its ongoing financial reporting. On March 30, 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting , whichis intended to improve the accounting for share-based payment transactions as part of the FASB’s simplification initiative. TheASU changes five aspects of the accounting for share-based payment award transactions that will affect public companies,including: (1) accounting for income taxes; (2) classification of excess tax benefits on the statement of cash flows; (3) forfeitures;(4) minimum statutory tax withholding requirements; and (5) classification of employee taxes paid on the statement of cash flowswhen an employer withholds shares for tax-withholding purposes. This ASU is effective for fiscal years beginning afterDecember 15, 2016. Early adoption is permitted. The Company is evaluating the effect that ASU 2016-09 will have on itsconsolidated financial statements and related disclosures. If adopted in the current fiscal year, among other changes, $7.9 millionin excess tax benefits would be reclassified from a financing activity inflow to an operating activity inflow.In September 2015, the FASB issued ASU 2015-17, Balance Sheet Classification of Deferred Taxes . The new standardrequires that deferred tax assets and liabilities be classified as noncurrent on the classified balance sheet. The guidance is effectivefor financial statements issued for annual periods beginning after December 15, 2016, and interim periods within those annualperiods. Earlier application is permitted for all entities as of the beginning of an interim or annual reporting period. Theamendments in this ASU may be applied either prospectively to all deferred tax assets and liabilities or retrospectively to allperiods presented. We adopted this standard prospectively as of April 1, 2016. Our June 30, 2015 consolidated balance sheet with$129.5 million of net current deferred tax assets has not been retrospectively adjusted.In September 2015, the FASB issued ASU 2015-16, Simplifying the Accounting for Measurement-Period Adjustments ,which requires acquirers who have reported provisional amounts for items in a business combination to recognize adjustments toprovisional amounts that are identified during the measurement period, in the reporting period in which the adjustments aredetermined. The ASU also requires that the acquirer record, in the same period’s financial statements, the effect on earnings ofchanges in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts,calculated as if the accounting had been completed at the acquisition date. Prior to the issuance of ASU 2015-16, adjustments toprovisional amounts were required to be retrospectively adjusted. The Company prospectively early-adopted ASU 2015-16effective July 1, 2015. The adoption of this standard did not have a material impact on the consolidated financial statements.In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers , which requires an entity torecognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers.The ASU will replace most existing revenue recognition guidance in GAAP when it becomes effective. In July 2015, the FASBdeferred the effective date to annual reporting periods and interim reporting periods within annual reporting periods beginningafter December 15, 2017. Early adoption is permitted as of the original effective date or annual reporting periods and interimreporting periods within annual reporting periods beginning after December 15, 2016. The standard permits the use of either theretrospective or cumulative effect transition method. The Company is evaluating the effect that ASU 2014-09 will have on theCompany and its consolidated financial statements and related disclosures. The Company has not yet selected a transition methodnor has it determined the effect of the standard on its ongoing financial reporting. F- 16 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) (3) ACQUISITIONSSince inception, the Company has consummated 38 transactions accounted for as business combinations. The acquisitionswere executed as part of the Company’s business strategy of expanding through acquisitions. The acquisitions of these businesseshave allowed the Company to increase the scale at which it operates, which in turn affords the Company the ability to increase itsoperating leverage, extend its network reach, and broaden its customer base.The accompanying consolidated financial statements include the operations of the acquired entities from their respectiveacquisition dates.Acquisitions Completed During Fiscal 2016ClearviewOn April 1, 2016, the Company acquired 100% of the equity interest in Clearview International, LLC (“Clearview”), aTexas based colocation and cloud infrastructure services provider for cash consideration of $18.3 million, subject to certain post-closing adjustments. The acquisition was funded with cash on hand and was considered an asset purchase for tax purposes.The acquisition consisted of two Texas data centers. The data centers, located at 6606 LBJ Freeway in Dallas, Texas and700 Austin Avenue in Waco, Texas, added approximately 30,000 square feet of colocation space, as well as a robust set of hybridcloud infrastructure services that complement the Company’s global cloud capabilities. AllstreamOn January 15, 2016, the Company acquired 100% of the equity interest in Allstream, Inc. and Allstream Fiber U.S. Inc.(together “Allstream”) from Manitoba Telecom Services Inc. (“MTS”)for cash consideration of CAD $422.9 million ( or $297.6million), net of cash acquired, subject to certain post-closing adjustments. The consideration paid is net of CAD $42.1 million (or$29.6 million) of working capital and other liabilities assumed by the Company in the acquisition. The acquisition was fundedwith Term Loan Proceeds (as defined in Note 8 – Long-Term Debt ). The acquisition was considered a stock purchase for taxpurposes.The acquisition adds more than 18,000 route miles to the Company’s fiber network, including 12,500 miles of long-haulfiber connecting all major Canadian markets and 5,500 route miles of metro fiber network connecting approximately 3,300 on-netbuildings concentrated in Canada’s top five metropolitan markets.As part of the Allstream acquisition, MTS agreed to retain Allstream’s former defined benefit pension obligations, andrelated pension plan assets, of retirees and other former employees of Allstream and also agreed to reimburse Allstream forcertain solvency funding payments related to the pension obligations of active Allstream employees as of January 15, 2016. MTSwill transfer assets from Allstream’s former defined benefit pension plans related to pre-closing service obligations for activeemployees to new Allstream defined benefit pension plans created by the Company, subject to regulatory approval. In addition, ifthe pre-closing benefit obligation for the January 15, 2016 active employees exceeds the fair value of assets transferred to the newAllstream pension plans, MTS agreed to fund the funding deficiency at the later of the asset transfer date or the date at which it isdetermined that no further solvency deficit exists. Any required funding of the pension benefit obligation subsequent to January15, 2016, will be the responsibility of the Company. This amount was not material to the financial statements as of June 30, 2016.Also as part of the Allstream acquisition, the Company assumed the liabilities related to Allstream’s other non-pensionunfunded post retirement benefits plans. The liability assumed on January 15, 2016 was approximately CADF- 17 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) $12.8 million (or $8.3 million). The balance of this liability as of June 30, 2016 was approximately CAD $14.9 million (or $11.5million). This liability is currently included in “Other long-term liabilities” on the consolidated balance sheet.ViatelOn December 31, 2015, the Company completed the acquisition of a 100% interest in Viatel Infrastructure Europe Ltd.,Viatel (UK) Limited, Viatel France SAS, Viatel Deutschland GmbH and Viatel Nederland BV (collectively, “Viatel”) for cashconsideration of €94.2 million (or $102.7 million), net of cash acquired. The final purchase consideration is subject to certainpost-closing adjustments. The acquisition was funded with cash on hand. €5.0 million (or $5.5 million) of the purchaseconsideration is currently held in escrow pending expiration of the indemnification adjustment period. The acquisition wasconsidered a stock purchase for tax purposes.Dallas Data Center Acquisition (“Dallas Data Center”)On December 31, 2015, the Company acquired a 36,000 square foot data center located in Dallas, Texas for cashconsideration of $16.6 million. The acquisition was funded with cash on hand and was considered an asset purchase for taxpurposes.Acquisitions Completed During Fiscal 2015Neo Telecoms (“Neo”)On July 1, 2014, the Company acquired a 96% equity interest in Neo, a Paris-based bandwidth infrastructure company. Thepurchase agreement also includes a call option to acquire the remaining equity interest on or after December 31, 2015. Thepurchase consideration of €54.1 million (or$73.9 million), net of cash acquired, was in consideration of acquiring 96% equityownership in Neo and a call option to purchase the remaining 4% equity interest in Neo. The fair value of the 4% non-controllinginterest in Neo as of the acquisition date was $2.9 million and recorded in Other long-term liabilities. The consideration consistedof cash and was paid with cash on hand from the proceeds of the Company’s Term Loan Facility (as defined in Note 8 – Long-Term Debt ). €8.7 million (or $11.9 million) of the purchase consideration is currently held in escrow pending the expiration ofthe indemnification adjustment period. The acquisition was considered a stock purchase for tax purposes.In April 2016, the Company exercised its call option to acquire the remaining 4% equity interest in Neo. The remainingequity interest was purchased for €2.0 million (or $2.3 million).Colo Facilities Atlanta (“AtlantaNAP”)On July 1, 2014, the Company acquired 100% of the equity interest in AtlantaNAP, a data center and managed servicesprovider in Atlanta, for cash consideration of $51.9 million. The acquisition was considered an asset purchase for tax purposes.IdeaTek Systems, Inc. (“IdeaTek”)Effective January 1, 2015, the Company acquired all of the equity interest in IdeaTek. The purchase price, subject to certainpost-closing adjustments, was $52.7 million and was paid with cash on hand. The acquisition was considered a stock purchase fortax purposes.The IdeaTek acquisition added 1,800 route miles to the Company’s network in Kansas, and includes a dense metro footprintin Wichita, Kansas. The network spans across Kansas and connects to approximately 600 cellular towers and over 100 additionalbuildings.F- 18 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) Latisys Holdings, LLC (“Latisys”)On February 23, 2015, the Company acquired the operating units of Latisys, a colocation and infrastructure as a service(“Iaas”) provider for a price of $677.8 million, net of cash acquired. The Latisys acquisition was funded with the proceeds of theJanuary 2015 Notes Offering (as defined in Note 8 – Long-Term Debt ). The acquisition was considered a stock purchase for taxpurposes.The Latisys acquisition added colocation and IaaS services through eight data centers across five markets in NorthernVirginia, Chicago, Denver, Orange County and London. The acquired data centers currently total over 185,000 square feet ofbillable space and 33 megawatts of critical power.Acquisitions Completed During Fiscal 2014Corelink Data Centers, LLC ("Corelink")On August 1, 2013, the Company entered into an asset purchase agreement to acquire Corelink. The transaction wasconsummated on the same date, at which time the Company acquired substantially all of the net assets of this business forconsideration of approximately $1.9 million comprised of 301,949 preferred units of CII with an estimated fair value of $1.6million and cash of $0.3 million, net of cash acquired. The acquisition was considered a stock purchase for tax purposes. The cashconsideration was paid with cash on hand.Access Communications, Inc. ("Access")On October 1, 2013, the Company acquired 100% of the equity interest in Access, a Minnesota corporation, for cashconsideration of $40.1 million net of cash acquired. The acquisition was considered a stock purchase for tax purposes. Thepurchase price was paid with cash on hand.FiberLink, LLC ("FiberLink")On October 2, 2013, the Company acquired 100% of the equity interest in FiberLink, an Illinois limited liability company,for cash consideration of $43.1 million which was primarily funded with available funds drawn on the Company’s Revolver (asdefined in Note 8 – Long-Term Debt ). The acquisition was considered an asset purchase for tax purposes.CoreXchange, Inc. ("CoreXchange")On March 4, 2014, the Company consummated the asset purchase agreement to acquire CoreXchange, a data center,bandwidth and managed services provider located in Dallas, Texas for consideration of $17.2 million net of cash acquired.Through the transaction, the Company acquired one new data center operation located at 8600 Harry Hines Blvd. and securedadditional square footage in its existing data center. The consideration was paid with cash on hand. The acquisition wasconsidered an asset purchase for tax purposes.Geo Networks Limited ("Geo")On May 16, 2014, the Company acquired 100% of the equity interest in Ego Holdings Limited, a London-based dark fiberprovider. The consideration consisted of cash of £174.3 million (or $292.3 million), net of cash acquired, and was funded with acombination of cash on hand and available funds drawn on the Company’s Revolver (as defined in Note 8 – Long-Term Debt ). Inconjunction with the acquisition, the Company repaid Geo’s existing debt obligations to the note holders totaling £113.4 millionand £69.1 million was paid to the shareholders. The acquisition was considered a stock purchase for tax purposes.F- 19 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) Acquisition Method Accounting EstimatesThe Company initially recognizes the assets and liabilities acquired from the aforementioned acquisitions based on itspreliminary estimates of their acquisition date fair values. As additional information becomes known concerning the acquiredassets and assumed liabilities, management may make adjustments to the opening balance sheet of the acquired company up tothe end of the measurement period, which is no longer than a one year period following the acquisition date. The determination ofthe fair values of the acquired assets and liabilities assumed (and the related determination of estimated lives of depreciabletangible and identifiable intangible assets) requires significant judgment. As of June 30, 2016, the Company has not completed itsfair value analysis and calculations in sufficient detail necessary to arrive at the final estimates of the fair value of certain workingcapital and non-working capital acquired assets and assumed liabilities, including the allocations to goodwill and intangibleassets, deferred revenue and resulting deferred taxes related to its acquisitions of Allstream, Viatel, Dallas Data Center andClearview. All information presented with respect to certain working capital and non-working capital acquired assets andliabilities assumed as it relates to these acquisitions is preliminary and subject to revision pending the final fair value analysis.The table below reflects the Company's estimates of the acquisition date fair values of the assets and liabilities assumedfrom its Fiscal 2016 acquisitions: Clearview Allstream Viatel Dallas Data CenterAcquisition date April 1, 2016 January 15,2016 December 31,2015 December 31,2015 (in millions)Cash $ — $2.9 $3.5 $ —Other current assets 0.6 102.3 13.5 —Property and equipment 15.4 269.2 162.3 14.8Deferred tax assets, net 0.2 2.4 — —Intangibles 9.8 57.2 — 1.8Goodwill 3.9 — 13.0 —Other assets 0.2 4.6 2.1 —Total assets acquired 30.1 438.6 194.4 16.6Current liabilities 1.1 64.4 17.6 —Deferred revenue 0.4 46.2 57.8 —Deferred tax liability, net — — 5.7 —Other liabilities 10.3 27.5 7.1 —Total liabilities assumed 11.8 138.1 88.2 —Net assets acquired 18.3 300.5 106.2 16.6Less cash acquired — (2.9) (3.5) —Net consideration paid $18.3 $297.6 $102.7 $16.6F- 20 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) The table below reflects the Company's estimates of the acquisition date fair values of the assets and liabilities assumedfrom its Fiscal 2015 acquisitions: AtlantaNAP Neo IdeaTek LatisysAcquisition date July 1, 2014 July 1, 2014 January 1, 2015 February 23, 2015 (in millions)Cash $ — $4.2 $ — $9.4Other current assets 0.2 9.5 0.8 17.4Property and equipment 7.0 31.3 32.3 222.9Deferred tax assets, net — — 3.1 0.4Intangibles 21.0 26.4 7.6 250.2Goodwill 25.2 32.5 39.0 274.1Other assets — 2.3 — 5.0Total assets acquired 53.4 106.2 82.8 779.4Current liabilities 1.5 13.5 4.4 9.9Deferred revenue — 3.7 25.7 3.2Deferred tax liability, net — 7.6 — 79.1Other liabilities — 3.3 — —Total liabilities assumed 1.5 28.1 30.1 92.2Net assets acquired 51.9 78.1 52.7 687.2Less cash acquired — (4.2) — (9.4)Net consideration paid $51.9 $73.9 $52.7 $677.8 The table below reflects the Company's estimates of the acquisition date fair values of the acquired assets and liabilitiesassumed from its Fiscal 2014 acquisitions: Corelink Access Fiberlink CoreXchange GeoAcquisition date August 1,2013 October 1,2013 October 2,2013 March 4, 2014 May 16, 2014 (in millions)Cash $0.1 $1.2 $ — $ — $13.7Other current assets 0.5 2.3 0.8 0.6 8.8Property and equipment 15.9 11.5 15.9 3.1 220.4Deferred tax assets, net — — 7.7 0.2 —Intangibles 0.2 18.0 19.3 11.0 60.8Goodwill 2.9 24.0 19.8 3.4 113.8Other assets 0.5 — 0.1 — 9.8Total assets acquired 20.1 57.0 63.6 18.3 427.3Current liabilities 0.7 1.0 1.3 0.5 34.8Deferred revenue 0.2 5.1 19.2 0.4 45.1Capital lease obligations 14.2 — — 0.2 —Deferred tax liability, net 3.0 9.6 — — 38.2Other liabilities — — — — 3.2Total liabilities assumed 18.1 15.7 20.5 1.1 121.3Net assets acquired 2.0 41.3 43.1 17.2 306.0Less cash acquired (0.1) (1.2) — — (13.7)Net consideration paid $1.9 $40.1 $43.1 $17.2 $292.3The goodwill arising from the Company's acquisitions results from the cost synergies, anticipated incremental sales to theacquired company's customer base and economies-of-scale expected from the acquisitions. The Company has allocated thegoodwill to the reporting units (in existence on the respective acquisition dates) that were expected toF- 21 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) benefit from the acquired goodwill. The allocation was determined based on the excess of the fair value of the acquired businessover the fair value of the individual assets acquired and liabilities assumed that were assigned to the reporting units. Note 6 -Goodwill , displays the allocation of the Company's acquired goodwill to each of its reporting units.Purchase Accounting Estimates Associated with Deferred TaxesThe Company acquired material deferred tax liabilities in its acquisitions of Latisys and Geo. Based on the Company’s fairvalue assessment related to deferred taxes acquired in the Latisys and Geo acquisitions , a value of $78.7 million and $38.2million, respectively, was assigned to the acquired net deferred income tax liabilities.In conjunction with the acquisition accounting for Latisys, the Company completed a “change in ownership” analysis,within the meaning of Section 382 of the Internal Revenue Code (“IRC”). Section 382 of the IRC limits an acquiring company’sability to utilize NOLs previously generated by an acquired company in order to reduce future taxable income. As a result of theCompany’s acquisition of Latisys, the Company is subject to annual limitations on usage of the acquired $134.9 million of NOLsgenerated by Latisys prior to the acquisition date.The tax effect of temporary differences that give rise to significant portions of the deferred tax assets and deferred taxliabilities are as follows: Latisys Geo February 23, 2015 May 16, 2014 (in millions)Deferred income tax assets: Net operating loss carryforwards $53.4 $2.5Deferred revenue 1.3 4.4Accrued expenses 0.2 —Allowance for doubtful accounts 0.3 —Other 1.2 —Total deferred income tax assets 56.4 6.9Deferred income tax liabilities: Property and equipment (42.0) (32.9)Intangible assets (93.1) (12.2)Total deferred income tax liabilities (135.1) (45.1)Net deferred income tax liabilities $(78.7) $(38.2) Transaction CostsTransaction costs include expenses associated with professional services (i.e., legal, accounting, regulatory, etc.) renderedin connection with signed and/or closed acquisitions or disposals (including spin-offs), travel expense, severance expenseincurred on the date of acquisition or disposal, and other direct expenses incurred that are associated with such acquisitions ordisposals. The Company incurred transaction costs of $21.5 million, $6.2 million, and $5.3 million during the years ended June30, 2016, 2015 and 2014, respectively. Transaction costs have been included in selling, general and administrative expenses in theconsolidated statements of operations and in cash flows from operating activities in the consolidated statements of cash flowsduring these periods.Pro-forma Financial Information (Unaudited)The pro forma results presented below include the effects of the Company’s Fiscal 2016 and 2015 acquisitions as if theacquisitions occurred on July 1, 2014. The pro forma net loss for the periods ended June 30, 2016 and 2015 includes theadditional depreciation and amortization resulting from the adjustments to the value of property and equipment and intangibleassets resulting from purchase accounting and adjustment to amortized revenue during Fiscal 2016 and 2015 as a result of theacquisition date valuation of assumed deferred revenue. The pro forma results alsoF- 22 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) include interest expense associated with debt used to fund the acquisitions. The pro forma results do not include any anticipatedsynergies or other expected benefits of the acquisitions. The unaudited pro forma financial information below is not necessarilyindicative of either future results of operations or results that might have been achieved had the acquisitions been consummated asof July 1, 2014. Year Ended June 30, 2016 2015 (in millions)Revenue $1,983.2 $1,902.7Net loss $(79.3) $(199.0)The Company is unable to determine the amount of revenue associated with each acquisition recognized in the post-acquisition period as a result of integration activities with the exception of Allstream which is currently tracked as a separatereportable segment (see Note 16 – Segment Reporting ).(4) SPIN-OFF OF BUSINESSOn June 13, 2014, the Company completed a spin-off of Onvoy, LLC and its subsidiaries (“OVS”), a company thatprovided voice and managed services. Prior to the spin-off, on March 7, 2014, OVS converted from a corporation to a limitedliability company. At that time, certain tax attributes were retained by the Company in connection with the conversion, primarilydeferred tax assets associated with net operating loss carry forwards totaling $13.7 million. On the spin-off date, the remaining netassets of OVS were distributed to CII.The spin-off is reported as an equity distribution at carryover basis equal to the net assets and liabilities of OVS on the spin-off date, as the transaction was between entities under common control.The Company determined that all significant cash flows and continuing involvement associated with the operations of OVSwere discontinued. The results of operations of OVS are reported as discontinued operations in the accompanying consolidatedfinancial statements for all periods presented and are presented net of intercompany eliminations.Earnings from discontinued operations, net of income taxes in the accompanying consolidated statements of operations arecomprised of the following: Period Ended June 30, 2014 (in millions)Revenues $75.7Earnings before income taxes 10.0Income tax expense $7.7Earnings from discontinued operations, net of income taxes $2.3 F- 23 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) (5) PROPERTY AND EQUIPMENTProperty and equipment, including assets held under capital leases, was comprised of the following: Estimated useful lives As of June 30, (in years) 2016 2015 (in millions)Land N/A $16.7 $16.2Buildings - leasehold and site improvements 15 to 35 187.3 109.2Furniture, fixtures and office equipment 3 to 7 6.8 5.1Computer hardware 3 to 5 24.5 15.1Software 3 37.2 8.3Machinery and equipment 5 to 7 326.6 272.1Fiber optic equipment 8 732.5 623.3Circuit switch equipment 10 20.3 12.1Packet switch equipment 5 97.9 76.2Fiber optic network 15 to 20 3,393.0 2,715.4Construction in progress N/A 656.8 437.1Total 5,499.6 4,290.1Less accumulated depreciation (1,420.1) (990.9)Property and equipment, net $4,079.5 $3,299.2Total depreciation expense, including depreciation of assets held under capital leases, for the years ended June 30, 2016,2015 and 2014 was $440.5 million, $351.4 million and $294.2 million, respectively.During the years ended June 30, 2016, 2015 and 2014, the Company capitalized interest in the amounts of $13.8 million,$12.5 million and $12.6 million, respectively. The Company capitalized $64.5 million, $58.3 million, and $42.7 million of directlabor costs to property and equipment accounts during the years ended June 30, 2016, 2015 and 2014, respectively.(6) GOODWILLThe Company’s goodwill balance was $1,214.5 million and $1,224.4 million as of June 30, 2016 and 2015, respectively. The Company’s reporting units are comprised of its strategic product groups (“SPGs”): Zayo Dark Fiber (“Dark Fiber”),Zayo Wavelength Services (“Waves”), Zayo SONET Services (“SONET”), Zayo Ethernet Services (“Ethernet”), Zayo IPServices (“IP”), Zayo Mobile Infrastructure Group (“MIG”), Zayo Colocation (“zColo"), Zayo Cloud Services (“Cloud”),Allstream business (“Zayo Canada”) and Other (primarily ZPS).F- 24 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) The following reflects the changes in the carrying amount of goodwill during Fiscal 2016: Product Group As of June 30, 2015 Fiscal 2016 Acquisitions Adjustments toFiscal 2015Acquisitions Foreign CurrencyTranslation andOther As of June 30, 2016 (in millions)Dark Fiber $299.1 $10.2 $ — $(14.2) $295.1Waves 265.6 — — (7.3) 258.3Sonet 50.3 1.0 — — 51.3Ethernet 104.2 — — 0.1 104.3IP 86.3 1.4 — (0.2) 87.5MIG 73.4 — 0.2 — 73.6zColo 273.2 1.3 (5.7) — 268.8Cloud 57.0 3.0 — — 60.0Other 15.3 — — 0.3 15.6Total $1,224.4 $16.9 $(5.5) $(21.3) $1,214.5 The following reflects the changes in the carrying amount of goodwill during Fiscal 2015: Product Group As of July 1, 2014 Fiscal 2015 Acquisitions Foreign Currency Translation and Other As of June 30, 2015 (in millions)Dark Fiber $293.3 $16.0 $(10.2) $299.1Waves 269.0 1.4 (4.8) 265.6Sonet 50.3 — — 50.3Ethernet 96.7 8.2 (0.7) 104.2IP 80.5 6.8 (1.0) 86.3MIG 43.7 29.8 (0.1) 73.4zColo 18.6 256.0 (1.4) 273.2Cloud — 57.2 (0.2) 57.0Other 14.6 0.9 (0.2) 15.3Total $866.7 $376.3 $(18.6) $1,224.4 F- 25 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) (7) INTANGIBLE ASSETSIdentifiable intangible assets as of June 30, 2016 and 2015 were as follows: GrossCarryingAmount Accumulated Amortization Net (in millions)June 30, 2016 Finite-Lived Intangible Assets Customer relationships $1,143.6 $(228.8) $914.8Trade names 0.2 (0.2) —Underlying rights 1.6 (0.3) 1.3Total 1,145.4 (229.3) 916.1Indefinite-Lived Intangible Assets Certifications 3.5 — 3.5Underlying Rights 15.3 — 15.3Total $1,164.2 $(229.3) $934.9June 30, 2015 Finite-Lived Intangible Assets Customer relationships $1,080.3 $(155.0) $925.3Trade names 0.2 (0.1) 0.1Underlying rights 1.7 (0.2) 1.5Total 1,082.2 (155.3) 926.9Indefinite-Lived Intangible Assets Certifications 3.5 — 3.5Underlying Rights 17.9 — 17.9Total $1,103.6 $(155.3) $948.3 The weighted average remaining amortization period for the Company’s customer relationships asset is 14.7 years. TheCompany has determined that certain underlying rights (including easements) and the certifications have indefinite lives. Theamortization period for underlying rights (including easements) is 20 years. The amortization of intangible assets for the yearsended June 30, 2016, 2015 and 2014 was $75.8 million, $54.8 million, and $44.0 million, respectively.During the years ended June 30, 2016 and 2015, the Company wrote off $1.8 million and $3.5 million in fully amortizedintangible assets, respectively. Estimated future amortization of finite-lived intangible assets is as follows: June 30, (in millions)2017 $74.02018 72.62019 70.62020 65.62021 63.5Thereafter 569.8Total $916.1 F- 26 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) (8) LONG-TERM DEBTAs of June 30, 2016 and 2015, long-term debt was as follows: 2016 2015 (in millions)Term Loan Facility due 2021 $1,837.4 $1,646.8 10.125% Senior Unsecured Notes due 2020 — 325.6 6.00% Senior Unsecured Notes due 2023 1,430.0 1,430.0 6.375% Senior Unsecured Notes due 2025 900.0 350.0 Total debt obligations 4,167.4 3,752.4 Unamortized discount on Term Loan Facility (19.0) (19.8) Unamortized premium on 6.00% Senior Unsecured Notes due 2023 6.3 7.1 Unamortized discount on 6.375% Senior Unsecured Notes due 2025 (15.6) — Unamortized debt issuance costs (53.8) (71.0) Carrying value of debt 4,085.3 3,668.7 Less current portion — (16.5) Long-term debt, less current portion $4,085.3 $3,652.2 Term Loan Facility due 2021 and Revolving Credit FacilityOn May 6, 2015, ZGL and Zayo Capital, Inc. (“Zayo Capital”) entered into an Amendment and Restatement Agreementwhereby the Credit Agreement (the “Credit Agreement”) governing their senior secured term loan facility (the “Term LoanFacility”) and $450.0 million senior secured revolving credit facility (the “Revolver”) was amended and restated in its entirety.The amended and restated Credit Agreement extended the maturity date of the outstanding term loans under the Term LoanFacility to May 6, 2021. The interest rate margins applicable to the Term Loan Facility were decreased by 25 basis points toLIBOR plus 2.75% with a minimum LIBOR of 1.0%. In addition, the amended and restated Credit Agreement removed the fixedcharge coverage ratio covenant and replaced such covenant with a springing senior secured leverage ratio maintenancerequirement applicable only to the Revolver, increased certain lien and debt baskets, and removed certain covenants related tocollateral. The terms of the Term Loan Facility require the Company to make quarterly principal payments of $5.1 million plus anannual payment of up to 50% of excess cash flow, as determined in accordance with the Credit Agreement (no such payment wasrequired during Fiscal 2016 or Fiscal 2015).The Revolver matures at the earliest of (i) April 17, 2020 and (ii) six months prior to the maturity date of the Term LoanFacility, subject to amendment thereof. The Credit Agreement also allows for letter of credit commitments of up to $50.0million. The Revolver is subject to a fee per annum of 0.25% to 0.375% (based on ZGL’s current leverage ratio) of the weighted-average unused capacity, and the undrawn amount of outstanding letters of credit backed by the Revolver are subject to a 0.25%fee per annum. Outstanding letters of credit backed by the Revolver accrue interest at a rate ranging from LIBOR plus 2.0% toLIBOR plus 3.0% per annum based upon ZGL’s leverage ratio.On January 15, 2016, ZGL and Zayo Capital entered into an Incremental Amendment (the “Amendment”) to the CreditAgreement. Under the terms of the Amendment, the Term Loan Facility was increased by $400.0 million. The additional amountsborrowed bear interest at LIBOR plus 3.5% with a minimum LIBOR rate of 1.0%. The $400.0 million add-on was priced at99.0% (the “Term Loan Proceeds”). The issue discount of $4.8 million on the Amendment is being accreted to interest expenseover the term of the Term Loan Facility under the effective interest method. No other terms of the Credit Agreement wereamended. The Term Loan Proceeds were used to fund the Allstream acquisition (see Note 3 – Acquisitions ) and for generalcorporate purposes.F- 27 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) The weighted average interest rates (including margins) on the Term Loan Facility were approximately 3.9% and 3.75% atJune 30, 2016 and 2015, respectively. Interest rates on the Revolver as of June 30, 2016 and 2015 were approximately 3.4% and3.0%, respectively.As of June 30, 2016, no amounts were outstanding under the Revolver. Standby letters of credit were outstanding in theamount of $7.9 million as of June 30, 2016, leaving $442.1 million available under the Revolver, subject to certain conditions.6.00% Senior Unsecured Notes Due 2023 and 6.375% Senior Unsecured Notes due 2025On January 23, 2015, ZGL and Zayo Capital (together “the Issuers”) completed a private offering (the “January 2015 NotesOffering”) of $700.0 million aggregate principal amount of 6.00% senior unsecured notes due in 2023 (the “2023 UnsecuredNotes”). On March 9, 2015, the Issuers completed a private offering of an additional $730.0 million aggregate principal amountof 2023 Unsecured Notes at a premium of 1% (the “March 2015 Notes Offering”, and together with the January 2015 NotesOffering, the “2023 Notes Offerings”) resulting in aggregate gross proceeds for the 2023 Unsecured Notes of $1,437.3million. The issue premium of $7.3 million on the March 2015 Notes Offering is being accreted against interest expense over theterm of the notes under the effective interest method. The 2023 Unsecured Notes bear interest at the rate of 6.00% per year,which is payable on April 1 and October 1 of each year, beginning on October 1, 2015. The 2023 Unsecured Notes will mature onApril 1, 2023. The net proceeds from the January 2015 Notes Offering were used to fund the Latisys acquisition (see Note 3 –Acquisitions ). The net proceeds from the March 2015 Notes Offering were used to redeem the Company’s remaining $675.0million 2020 Secured Notes (the “Second Notes Redemption”) at a price of 105.75%. As part of the Second Notes Redemption,we recorded an early redemption call premium of $38.8 million. The call premium has been recorded as a loss on extinguishmentof debt on the consolidated statements of operations for the year ended June 30, 2015.On May 6, 2015, ZGL and Zayo Capital issued $350.0 million aggregate principal amount of 6.375% senior unsecurednotes due in 2025 (the “2025 Unsecured Notes”). The net proceeds from the 2025 Unsecured Notes were used to repay $344.5million of the Company’s Term Loan Facility. As a result of the repayment, the Company recorded a loss on extinguishment ofdebt of $8.4 million.On April 14, 2016, the Issuers completed a private offering of $550.0 million aggregate principal amount of additional2025 Unsecured Notes (the “New 2025 Notes”). The New 2025 Notes are an additional issuance of the Issuers’ existing 2025Unsecured Notes and were priced at 97.1%. The issue discount of $15.9 million of the New 2025 Notes is being accreted tointerest expense over the term of the New 2025 Notes using the effective interest method. The net proceeds from the offering pluscash on hand (i) were used to redeem the Issuers’ remaining $325.6 million 2020 Unsecured Notes (as defined below), includingthe required $20.3 million make-whole premium and accrued interest, and (ii) were used to repay $196.0 million of borrowingsunder its secured Term Loan Facility. Per the terms of the Credit Agreement, the $196.0 million prepayment on the Term LoanFacility relieves the Company of its obligation to make quarterly principal payments on the Term Loan Facility until thecumulative amount of such relieved payments exceeds $196.0 million. The Company recorded a $2.1 million loss onextinguishment of debt associated with the write-off of unamortized debt discount on the Term Loan Facility accounted for as anextinguishment. Following the offering of the New 2025 Notes, $900.0 million aggregate principal amount of the 2025 UnsecuredNotes is outstanding.The 2025 Unsecured Notes bear interest at the rate of 6.375% per year. Interest on the 2025 Unsecured Notes is payableon May 15 and November 15 of each year. The 2025 Unsecured Notes will mature on May 15, 2025.10.125% Senior Unsecured Notes due 2020On July 2, 2012, the Issuers issued $500.0 million aggregate principal amount of 10.125% senior unsecured notes due 2020(the “2020 Unsecured Notes”). On December 15, 2014, the Issuers redeemed $174.4 million of their outstanding 2020 UnsecuredNotes at a price of 110.125% and $75.0 million of the then outstanding 8.125% seniorF- 28 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) secured notes due 2020 at a price of 108.125% (the “Partial Notes Redemption”). As part of the Partial Notes Redemption, theCompany paid an early redemption call premium of $23.8 million, which was recorded as a loss on extinguishment of debt in theconsolidated statements of operations during the year ended June 30, 2015.Debt covenantsThe indentures (the “Indentures”) governing the 2023 Unsecured Notes and the 2025 Unsecured Notes (collectively the“Notes”) contain covenants that, among other things, restrict the ability of ZGL and its subsidiaries to incur additionalindebtedness and issue preferred stock; pay dividends or make other distributions with respect to any equity interests, makecertain investments or other restricted payments, create liens, sell assets, incur restrictions on the ability of the ZGL’s restrictedsubsidiaries to pay dividends or make other payments to ZGL, consolidate or merge with or into other companies or transfer all orsubstantially all of their assets, engage in transactions with affiliates, and enter into sale and leaseback transactions. The terms ofthe Indentures include customary events of default.The Credit Agreement contains customary events of default, including among others, non-payment of principal, interest, orother amounts when due, inaccuracy of representations and warranties, breach of covenants, cross default to certain otherindebtedness, insolvency or inability to pay debts, bankruptcy, or a change of control. The Credit Agreement also contains acovenant, applicable only to the Revolver, that ZGL maintain a senior secured leverage ratio below 5.25:1.00 at any time whenthe aggregate principal amount of loans outstanding under the Revolver is greater than 35% of the commitments under theRevolver. The Credit Agreement also requires ZGL and its subsidiaries to comply with customary affirmative and negativecovenants, including covenants restricting the ability of ZGL and its subsidiaries, subject to specified exceptions, to incuradditional indebtedness, make additional guaranties, incur additional liens on assets, or dispose of assets, pay dividends, or makeother distributions, voluntarily prepay certain other indebtedness, enter into transactions with affiliated persons, make investmentsand amend the terms of certain other indebtedness.The Indentures limit any increase in ZGL’s secured indebtedness (other than certain forms of secured indebtednessexpressly permitted under such indentures) to a pro forma secured debt ratio of 4.50 times ZGL’s previous quarter’s annualizedmodified EBITDA (as defined in the indentures), and limit ZGL’s incurrence of additional indebtedness to a total indebtednessratio of 6.00 times the previous quarter’s annualized modified EBITDA.The Company was in compliance with all covenants associated with its debt agreements as of June 30, 2016 and 2015.Redemption rightsAt any time prior to May 15, 2018 (for the 2025 Unsecured Notes) and April 1, 2018 (for the 2023 Unsecured Notes) theCompany may redeem all or part of the applicable Notes at a redemption price equal to the sum of (i) 100% of the principalamount thereof, plus (ii) accrued interest and a “make-whole” premium, which is a lump sum payment derived from a formulabased on the net present value of future coupon payments that will not be paid because of the early redemption. On or after May 1, 2020 ( for the 2025 Unsecured Notes ) or April 1, 2018 ( for the 2023 Unsecured Notes ), the Companymay redeem all or part of the applicable Notes, at the redemption prices (expressed as percentages of principal amount and setforth below), plus accrued and unpaid interest and additional interest, if any, thereon, to the applicableF- 29 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) redemption date, subject to the rights of the holders of the Notes on the relevant record date to receive interest due on the relevantinterest payment date, if redeemed during the 12-month period of the years indicated below: Redemption Price Year (2023 Unsecured Notes) 2018 104.500%2019 103.000%2020 101.500%2021 and thereafter 100.000% Redemption Price Year (2025 Unsecured Notes) 2020 103.188%2021 102.125%2022 101.063%2023 and thereafter 100.000%The Company may purchase the Notes in open-market transactions, tender offers, or otherwise. The Company is notrequired to make any mandatory redemption or sinking fund payments with respect to the Notes.Aggregate future contractual maturities of long-term debt (excluding issue discounts and premiums) were as follows as ofJune 30, 2016: Year Ended June 30, (in millions)2017 $ —2018 —2019 —2020 —2021 1,837.4Thereafter 2,330.0Total $4,167.4GuaranteesThe Notes are fully and unconditionally guaranteed, jointly and severally, on a senior unsecured basis by all of the ZGL’scurrent and future domestic restricted subsidiaries. The Notes were co-issued with Zayo Capital, which does not have independentassets or operations.Debt issuance costsIn connection with the Credit Agreement (and subsequent amendments thereto), and the various Notes offerings, theCompany incurred debt issuance costs of $89.6 million (net of extinguishments). These costs are being amortized to interestexpense over the respective terms of the underlying debt instruments using the effective interest method, unless extinguishedearlier, at which time the related unamortized costs are to be immediately expensed.Unamortized debt issuance costs of $11.4 million, $23.2 million and $0.7 million associated with the Company’s previousindebtedness were recorded as part of the loss on extinguishment of debt during the years ended June 30, 2016 , 2015 and 2014 ,respectively. The balance of debt issuance costs as of June 30, 2016 and 2015 was $53.8 million and $71.0 million, net of accumulatedamortization of $35.8 million and $28.3 million, respectively. The amortization of debt issuance costs isF- 30 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) included on the consolidated statements of cash flows within the caption “Non-cash interest expense” along with the amortizationor accretion of the premium and discount on the Company’s indebtedness and changes in the fair value of the Company’s interestrate derivatives. Interest expense associated with the amortization of debt issuance costs was $10.0 million for the year endedJune 30, 2016 and $13.9 million for the years ended June 30, 2015 and 2014.Debt issuance costs are presented in the consolidated balance sheets as a reduction to “Long-term debt, non-current”.Interest rate derivativesOn August 13, 2012, the Company entered into forward-starting interest rate swap agreements with an aggregate notionalvalue of $750.0 million, a maturity date of June 30, 2017, and a start date of June 30, 2013. There were no up-front fees for theseagreements. The contract states that the Company shall pay a 1.67% fixed rate of interest for the term of the agreement beginningon the start date. The counter-party will pay to the Company the greater of actual LIBOR or 1.25%. The Company entered in tothe forward-starting swap arrangements to reduce the risk of increased interest costs associated with potential changes in LIBORrates.Changes in the fair value of interest rate swaps are recorded in interest expense in the consolidated statements of operationsfor the applicable period. The fair value of the interest rate swaps of $3.0 million and $4.1 million are included in “Other longterm liabilities” in the Company’s consolidated balance sheet as of June 30, 2016 and 2015, respectively. During the years endedJune 30, 2016, 2015 and 2014, $(1.1) million, $2.1 million and $4.6 were recorded as a (decrease)/increase in interest expense forthe change in the fair value of the interest rate swaps.(9) INCOME TAXESThe Company’s provision/(benefit) for income taxes from operations are summarized as follows: June 30, 2016 2015 2014 (in millions)Current Income Taxes Federal $(1.3) $1.7 $6.2State 8.7 4.4 3.6Foreign 3.9 (1.6) 3.3Total $11.3 $4.5 $13.1Deferred Income Taxes Federal $7.3 $(8.7) $23.8State (2.3) (6.9) 1.0Foreign (7.8) 2.3 (0.6)Total (2.8) (13.3) 24.2Total provision/(benefit) for income taxes $8.5 $(8.8) $37.3 The United States and foreign components of loss from operations before income taxes are as follows: June 30, 2016 2015 2014 (in millions)United States $(46.9) $(159.7) $(135.3)Foreign (20.8) (4.4) (9.0)Total $(67.7) $(164.1) $(144.3)F- 31 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) The Company’s effective income tax rate differs from what would be expected if the federal statutory rate were applied toearnings before income taxes primarily because of certain expenses that represent permanent differences between book and taxexpenses and deductions, such as the stock-based compensation expense related to the Company’s CII common units that isrecorded as an expense for financial reporting purposes but is not deductible for tax purposes.A reconciliation of the actual income tax provision and the tax computed by applying the U.S. federal rate to the earningsbefore income taxes during the years ended June 30, 2016, 2015 and 2014 are as follows: June 30, 2016 2015 2014 (in millions)Expected benefit at the statutory rate $(23.8) $(57.4) $(50.5)Increase/(decrease) due to: Non-deductible stock-based compensation 27.9 59.4 96.5State income taxes benefit, net of federal benefit (2.1) (7.4) (6.6)Transactions costs not deductible for tax purposes 1.5 0.7 0.8Reversal of uncertain tax positions, net — — (2.6)Change in statutory tax rate (3.6) (2.2) (0.3)Change in valuation allowance 2.8 — 1.3Foreign tax rate differential 2.7 0.6 1.0Other, net 3.1 (2.5) (2.3)Provision/(benefit) for income taxes $8.5 $(8.8) $37.3 Deferred income taxes reflect the tax effects of temporary differences between the carrying amounts of assets and liabilitiesfor financial reporting purposes and the amounts used for income tax purposes. The tax effect of temporary differences that giverise to significant portions of the deferred tax assets and deferred tax liabilities are as follows: June 30, 2016 2015 (in millions)Deferred income tax assets Net operating loss carry forwards $563.9 $448.7Alternate minimum tax credit carryforwards 17.2 8.7Deferred revenue 318.3 243.5Accrued expenses 40.2 27.9Other liabilities 25.5 14.4Reserves against accounts receivable 14.8 10.2Other 15.5 17.4Total deferred income tax assets 995.4 770.8Valuation allowance (135.3) (1.1)Net deferred tax assets 860.1 769.7Deferred income tax liabilities Property and equipment 559.2 468.9Intangible assets 321.5 327.2Debt issuance costs 13.7 18.8Total deferred income tax liabilities 894.4 814.9Net deferred income tax liabilities $(34.3) $(45.2)In accordance with ASU No. 2015-17, at June 30, 2016 all deferred tax assets and liabilities are presented as noncurrent. Noprior periods were adjusted retrospectively.F- 32 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) As of June 30, 2016, the Company had $1,239.7 million of U.S. federal net operating loss ("NOL") carry forwards. Itutilized approximately $23.0 million during Fiscal 2016. The Company has completed several acquisitions in which it acquirednet operating loss tax attributes as part of the purchase. These acquisitions, however, were considered a "change in ownership”within the meaning of Section 382 of the Internal Revenue Code and, as a result, such NOL carry forwards are subject to anannual limitation, reducing the amount available to offset income tax liabilities absent the limitation. Currently available U.S.NOL carry forwards as of June 30, 2016 are approximately $730.7 million. An additional $200.8 million will become availablefor use during fiscal year ended June 30, 2017. The Company's NOL carry forwards, if not utilized to reduce taxable income infuture periods, will expire in various amounts beginning in 2019 and ending in 2035.As of June 30, 2016, the Company had approximately $401.1 million of foreign jurisdiction net operating loss carryforwards, primarily in Canada, the United Kingdom and France. The majority of these foreign NOLs have a valuation allowanceagainst the value of the corresponding deferred tax asset in the financial statements due to current forecasts of the Company’slimited ability to use them in the future.As of June 30, 2016, the Company had tax-effected state net operating loss carry forwards of approximately $37.8 million,which are subject to limitations on their utilization and have various expiration dates through 2034.Management believes it is more likely than not that it will utilize its net deferred tax assets to reduce or eliminate taxpayments in future periods, with the exception of deferred tax assets related to certain foreign subsidiaries. The Company’sevaluation encompassed (i) a review of its recent history of taxable income for the past three years and (ii) a review of internalfinancial forecasts demonstrating its expected ability to fully utilize its deferred tax assets prior to expiration.(10) ACCRUED LIABILITIESAccrued liabilities included in current liabilities consisted of the following: June 30, 2016 2015 (in millions)Accrued compensation and benefits $27.9 $19.4Accrued property and equipment purchases 46.7 54.7Network expense accruals 94.8 77.2Other accrued taxes 9.1 12.7Accrued professional fees 2.3 3.4Other accruals 44.9 14.8Total $225.7 $182.2 (11) EQUITYPrior to October 16, 2014, the Company was a wholly owned subsidiary of CII. CII was organized on November 6, 2006,and subsequently capitalized on May 7, 2007, with capital contributions from various institutional and founder investors. Prior toOctober 16, 2014, the Company was controlled by the CII board of managers, which was in turn controlled by the members of CIIin accordance with the rights specified in CII’s operating agreement. At formation, 1,000 shares of common stock, par value$0.001, were issued to CII by the Company.As part of the Company’s IPO in October 2014, the Company sold 16,008,679 shares of its common stock at a price of$19.00 per share for $304.2 million in gross proceeds. The Company incurred costs directly associated with the IPO of $22.2million. In March 2015, the Company completed a follow-on equity offering selling 4,000,000 shares of its common stock at aprice of $27.35 per share for $109.5 million in gross proceeds. The Company incurred costs directly associated with the follow-onoffering of $4.3 million. Proceeds from the IPO and the follow-on equity offeringF- 33 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) (net of issuance costs) of $387.2 million are reflected on the Company’s consolidated statement of stockholders’ equity during theyear ended June 30, 2015.During the year ended June 30, 2015, there was a deemed modification to the Company’s stock compensation arrangementswith employees and directors. The modification resulted in a reclassification of the previously recorded stock-basedcompensation liability to additional paid-in capital (see Note 12 – Stock-Based Compensation ). As discussed in Note 12— Stock-Based Compensation , during the quarter ended December 31, 2013, the Board of CIIauthorized a non-liquidating distribution to certain common unit holders of up to $10.0 million and advanced $10.0 million to CII,evidenced by an intercompany note receivable. During the quarter ended March 31, 2014, the Board of CII authorized and paid anon-liquidating distribution to the Company’s CEO for $3.0 million and amended the intercompany note receivable with CII forthe incremental distribution. During the quarter ended June 30, 2014, the Board of CII authorized and paid a non-liquidatingdistribution to a member of management for $9.0 million in full and final settlement of his outstanding common unit grants andfurther amended the intercompany note receivable with CII for the incremental distribution. The amount due from CII is reflectedas a reduction of stockholder’s equity as of June 30, 2014.On October 16, 2014, the Company entered into an agreement with CII which relieved CII of its obligation to repay theCompany the outstanding intercompany note receivable balance of $22.0 million. The cancelation of the intercompany notereceivable with CII is reflected on the consolidated statement of stockholders’ equity during the year ended June 30, 2015 as adecrease to additional paid-in-capital of $22.0 million and an offsetting decrease to the note receivable from shareholder.As discussed in Note 4— Spin-Off of Business , during the year ended June 30, 2014, the Company spun off OVS to CIIwith a corresponding non-cash distribution to CII totaling $31.8 million.As discussed in Note 3— Acquisitions, CII issued 301,949 preferred units with an estimated fair value of $1.6 million inconnection with the Corelink acquisition during the first quarter of Fiscal 2014.During the year ended June 30, 2016, the Company recorded a $152.9 million increase in additional paid-in capitalassociated with stock-based compensation expense related to the Company’s equity classified stock-based compensation awards(See Note 12 – Stock-based Compensation ). Additionally, during the first quarter of the year the Company recorded an increaseof $7.9 million to additional paid-in capital associated with a net tax benefit from stock-based compensation. The net tax benefitis a result of the stock-based compensation deduction for tax purposes exceeding the stock-based compensation expense recordedin the Company’s consolidated statement of operations. Subsequently during the year, the additional paid-in capital was reducedto the extent stock-based compensation expense recorded in the books exceeded the tax deduction up to the original $7.9 millionrecorded. Under GAAP, the gross tax benefit recognized during the period of $7.9 million has been recorded on the consolidatedstatement of cash flows as a cash inflow in the financing activities section and an offsetting outflow of $7.9 million has beenrecorded as a cash outflow in the cash provided by operating activities section.Share RepurchasesDuring the year ended June 30, 2016, the Company repurchased 3,474,120 shares of its outstanding common stock. Thisamount includes 3,103,350 shares repurchased at an average price of $23.07 per share, or $71.7 million, excluding commissions,under a $500 million, 6-month share repurchase program authorized by the Company’s Board of Directors (the “Board”) onNovember 10, 2015. The 6-month share repurchase program expired in May 2016. The amounts included in the “Common stockrepurchases” line in the Company’s Consolidated Statements of Cash Flows represents both shares authorized by the Board forrepurchase under the publically announced authorization described above, as well as $9.4 million, or 370,770 shares, withheldfrom employees to cover tax withholding obligations on restricted stock units that have vested.F- 34 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) (12) STOCK-BASED COMPENSATIONThe following tables summarize the Company’s stock-based compensation expense for liability and equity classifiedawards included in the consolidated statements of operations: Year Ended June 30, 2016 2015 2014 (in millions)Included in: Operating costs $17.4 $23.3 $20.2Selling, general and administrative expenses 138.5 177.4 233.5Total stock-based compensation expense $155.9 $200.7 $253.7 CII common and preferred units $73.0 $156.8 $253.7Part A restricted stock units 45.3 12.6 —Part B restricted stock units 36.5 31.3 —Part C restricted stock units 1.1 — —Total stock-based compensation expense $155.9 $200.7 $253.7CII Common and Preferred UnitsPrior to the Company’s IPO, the Company was given authorization by CII to award 625,000,000 of CII’s common units asprofits interests to employees, directors, and affiliates of the Company. The common units were historically considered to bestock-based compensation with terms that required the awards to be classified as liabilities due to cash settlement features. Thevested portion of the awards was reported as a liability and the fair value was re-measured at each reporting date until the date ofsettlement, with a corresponding charge (or credit) to stock-based compensation expense. In connection with the Company’s IPOand the related amendment to the CII operating agreement, there was a deemed modification to the stock compensationarrangements with the Company’s employees and directors. As a result, previously issued common units which were historicallyaccounted for as liability awards, became classified as equity awards. Prior to reclassifying the common unit liability to equity,the Company re-measured the fair value of the CII common units factoring in the change in fair value since September 30, 2014and the change in fair value caused by the modification. The fair value of these previously vested common units was estimated tobe $490.2 million on the modification date and this amount is reflected in the Company’s consolidated statement of stockholders’equity as an increase to additional-paid-in-capital during the year ended June 30, 2015. The fair value of the unrecognizedcompensation expense associated with unvested CII common units is being recognized over the remaining vesting period of theCompany’s outstanding common units through May 15, 2017.On October 9, 2014, the Company and CII’s board of managers approved a non-liquidating distribution by CII of shares ofthe Company's common stock held by CII to holders of CII vested common units. Employees and independent directors of theCompany with vested CII common units received shares of the Company’s common stock equal in value to the underlying valueof their vested CII common units. The total number of shares of the Company’s common stock that were distributed to CIIcommon unit holders in connection with this non-liquidating distribution was 20,460,047 shares.Employees with unvested CII common units have and/or will continue to receive monthly distributions from CII of theCompany’s common stock as they vest under the original terms of the CII common unit grant agreements. A total of 6,353,302shares of the Company’s common stock associated with unvested CII common units have or will be distributed subsequent to theIPO date. In addition, CII has and may in the future be required to distribute additional shares of the Company’s common stock toCII common unit holders on a quarterly basis based on the Company’s stock price performance through June 30, 2016 results,subject to the existing vesting provisions of the CII common units. The shares to be distributed to the common unit holders arebased on a pre-existing distribution mechanism, whose primaryF- 35 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) input is the Company’s stock price at each subsequent measurement date. Any remaining shares of common stock owned by CIIwill be distributed to the CII preferred unit holders. The total number of shares of the Company’s common stock that have or willbe distributed to CII preferred or common unit holders subsequent to the IPO date is 10,294,867 shares.The valuation of the CII common units as of the IPO date was determined based on a Monte Carlo simulation. The MonteCarlo valuation analysis attempts to approximate the probability of certain outcomes by running multiple trial runs, calledsimulations, using random variables to generate potential future stock prices. This valuation technique was used to estimate thefair value associated with future distributions of common stock to CII common unit holders. The Monte Carlo simulation firstprojects the number of shares to be distributed by CII to the common unit holders at each subsequent measurement date based onstock price projections under each simulation. Shares attributable to unvested CII common units are subject to the existing vestingprovisions of the CII common unit awards. The estimated future value of shares scheduled to be distributed by CII based onvesting provisions are calculated under each independent simulation. The present value of the number of shares of common stockto be distributed to common unit holders under each simulation is then computed, and the average of each simulation is the fairvalue of the Company’s common shares to be distributed by CII to the common unit holders. This value was then adjusted forprior non-liquidating distributions made by the Company to derive a value for CII common units by class and on per unit basis.These values were used to calculate the fair value of outstanding CII common units as of the IPO date. Various inputs andassumptions were utilized in the valuation method, including forfeiture behavior, vesting provisions, holding restrictions, peercompanies’ historical volatility, and an appropriate risk-free rate.The value of the CII common units is derived from the value of CII’s investments in the Company and OVS (see Note 4 –Spin-off of Business) . As the value derived from each of these investments is separately determinable and there is a plan in placeto distribute the value associated with the investment in Company shares separate from the value derived from OVS, the twocomponents are accounted for separately. The OVS component of the CII awards is adjusted to fair value each reporting period. On December 31, 2015, CII entered into an agreement to sell OVS to a third party. The sale was completed in May 2016. Basedon the sale price, the estimated fair value of OVS awards has been increased, resulting in an increase to stock based compensationexpense and corresponding increase to additional paid-in capital of $12.9 million for the year ended June 30, 2016. Proceedsfrom the sale to be distributed to the Company’s employees will be paid by CII.During the years ended June 30, 2016, 2015 and 2014, the Company recognized $73.0 million, $156.8 million and $253.7million, respectively, of stock-based compensation expense related to vesting of CII common and preferred units. As of June 30,2016, the unrecognized compensation associated with unvested CII common units was $10.1 million.Performance Incentive Compensation PlanDuring October 2014, the Company adopted the 2014 Performance Compensation Incentive Plan (“PCIP”). The PCIPincludes incentive cash compensation (ICC) and equity (in the form of restricted stock units or “RSUs”). Grants under the PCIPRSU plans are made quarterly for all participants. The PCIP was effective on October 16, 2014 and will remain in effect for aperiod of 10 years (or through October 16, 2024) unless it is earlier terminated by the Company’s Board of Directors.The PCIP has the following components:Part AUnder Part A of the PCIP, all full-time employees, including the Company’s executives, are eligible to earn quarterlyawards of RSUs. Each participant in Part A of the PCIP will have a RSU annual award target value, which will be allocated toeach fiscal quarter. The final Part A value awarded to a participant for any fiscal quarter is determined by the CompensationCommittee subsequent to the end of the respective performance period taking into account theF- 36 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) Company’s measured value creation for the quarter, as well as such other subjective factors that it deems relevant (includinggroup and individual level performance factors). The number of Part A RSUs granted will be calculated based on the final awardvalue determined by the Compensation Committee divided by the average closing price of the Company’s common stock over thelast ten trading days of the respective performance period. Part A RSUs will vest assuming continuous employment fifteenmonths subsequent to the end of the performance period. Upon vesting, the RSUs convert to an equal number of shares of theCompany’s common stock.During the years ended June 30, 2016 and 2015 the Company recognized $45.3 million and $12.6 million of compensationexpense associated with the vested portion of the Part A awards, respectively. The June 2016 and June 2015 quarterly awardswere recorded as liabilities totaling $2.0 million and $1.9 million as of June 30, 2016 and 2015, respectively, as the awardsrepresent an obligation denominated in a fixed dollar amount to be settled in a variable number of shares during the subsequentquarter. The quarterly stock-based compensation liability is included in “Other long-term liabilities” in the accompanyingconsolidated balance sheets. Upon the issuance of the RSUs, the liability is re-measured and then reclassified to additional paid-incapital, with a corresponding charge (or credit) to stock based compensation expense. The value of the remaining unvested RSUsis expensed ratably through the vesting date. At June 30, 2016, the remaining unrecognized compensation cost to be expensedover the remaining vesting period for Part A awards is $27.3 million.The following table summarizes the Company’s Part A RSU activity for the years ended June 30, 2016 and 2015: Number of Part ARSUs Weighted average grant-date fair value per share Weighted average remaining contractual term in monthsOutstanding at July 1, 2014 — $ — —Granted 955,831 26.25 Vested — Forfeited (22,614) n/a Outstanding at July 1, 2015 933,217 $26.25 7.1Granted 2,190,785 26.04 Vested (852,853) 26.14 Forfeited (101,248) n/a Outstanding at June 30, 2016 2,169,901 $26.04 7.9Part BUnder Part B of the PCIP, participants, who include members of the Company’s senior management team, are awardedquarterly grants of RSUs. The number of the RSUs earned by the participants is based on the Company’s stock price performanceover a four fiscal quarter measurement period and vest, assuming continuous employment at the end of the measurement period.The existence of a vesting provision that is associated with the performance of the Company’s stock price is a market condition,which affects the determination of the grant date fair value. Upon vesting, RSUs earned convert to an equal number of shares ofthe Company’s common stock.F- 37 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) The following table summarizes the Company’s Part B RSU activity for the years ended June 30, 2016 and 2015: Number of Part BRSUs Weighted averagegrant-date fairvalue per unit Weighted average remaining contractual term in monthsOutstanding at July 1, 2014 — $ — —Granted 1,251,671 42.90 Vested — Forfeited (1,798) n/a Outstanding at July 1, 2015 1,249,873 $42.90 5.5Granted 1,152,176 26.8 Vested (1,463,893) 38.7 Forfeited (77,220) n/a Outstanding at June 30, 2016 860,936 $29.50 6.2 The table below reflects the total Part B RSUs granted during each period presented, the maximum eligible shares of theCompany’s stock that the respective Part B RSU grant could be converted into shares of the Company’s common stock and thegrant date fair value per Part B RSU: During the three months ended June 30, 2016 March 31, 2016 December 31, 2015 September 30, 2015Part B RSUs granted 312,516 284,773 282,074 272,813Maximum eligible shares of the Company's commonstock 1,606,332 1,463,733 1,449,860 1,426,812Grant date fair value per Part B RSU $37.03 $25.12 $25.26 $17.83 During the three months ended June 30,2015 March 31,2015 December 31,2014Part B RSUs granted 316,353 359,658 575,660Maximum eligible shares of the Company's common stock 1,490,023 1,388,280 2,220,293Grant date fair value per Part B RSU $27.10 $24.36 $63.12Units converted to Company's common stock — — 2,220,293During years ended June 30, 2016 and 2015, the Company recognized stock-based compensation expense of $36.5 millionand $31.3 million related to Part B awards.The grant date fair value of Part B RSU grants is estimated utilizing a Monte Carlo simulation. This simulation estimatesthe ten-day average closing stock price ending on the vesting date, the stock price performance over the performance period, andthe number of common shares to be issued at the vesting date. Various assumptions are utilized in the valuation method, includingthe target stock price performance ranges and respective share payout percentages, the Company’s historical stock priceperformance and volatility, peer companies’ historical volatility and an appropriate risk-free rate. The aggregate future value ofthe grant under each simulation is calculated using the estimated per share value of the common stock at the end of the vestingperiod multiplied by the number of common shares projected to be granted at the vesting date. The present value of the aggregategrant is then calculated under each of the simulations, resulting in a distribution of potential present values. The fair value of thegrant is then calculated based on the average of the potential present values. The remaining unrecognized compensation costassociated with Part B RSU grants is $14.5 million at June 30, 2016.F- 38 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) Part CUnder Part C of the PCIP, independent directors of the Company are eligible to receive quarterly awards ofRSUs. Independent directors electing to receive a portion of their annual director fees in the form of RSUs are granted a setdollar amount of Part C RSUs each quarter. The quantity of Part C RSUs granted is based on the average closing price of theCompany’s common stock over the last ten trading days of the quarter ended immediately prior to the grant date and vest at theend of each quarter for which the grant was made. During the year ended June 30, 2016, the Company’s independent directorswere granted 41,793 Part C RSUs. During the year ended June 30, 2016, the Company recognized $1.1 million of compensationexpense associated with the Part C RSUs.(13) FAIR VALUE MEASUREMENTSThe Company’s financial instruments consist of cash and cash equivalents, restricted cash, trade receivables, accountspayable, interest rate swaps, certain post-employment plans, stock-based compensation liabilities and long-term debt. Thecarrying values of cash and cash equivalents, restricted cash, trade receivables, and accounts payable approximated their fairvalues at June 30, 2016 and 2015, due to the short maturity of these instruments.The carrying value of the Company’s Notes reflects the original amounts borrowed, inclusive of unamortized net discountbut excluding debt issuance costs, was $2,320.7 million and $2,112.7 million as of June 30, 2016 and 2015, respectively. Basedon market interest rates for debt of similar terms and average maturities, the fair value of the Company's Notes as of June 30,2016 and 2015 was estimated to be $2,338.1 million and $2,109.3 million, respectively. The Company’s fair value estimatesassociated with its Note obligations were derived utilizing Level 2 inputs – quoted prices for similar instruments in activemarkets.The carrying value of the Company’s Term Loan Facility reflects the original amounts borrowed, inclusive of theunamortized discounts but excluding debt issuance costs, was $1,818.4 million and $1,627.0 million as of June 30, 2016 and2015, respectively. The Company’s Term Loan Facility accrues interest at variable rates based upon the one month, three monthor six month LIBOR (with a LIBOR floor of 1.0%) plus a spread of 2.75% or 3.50% depending on the Term Loan tranche. Sincemanagement does not believe that the Company’s credit quality has changed significantly since the date when the Term LoanFacility last amended on May 6, 2015, its carrying amount approximates fair value. Excluding any offsetting effect of theCompany’s interest rate swaps, a hypothetical increase in the applicable interest rate on the Company’s term loan of onepercentage point above the 1.0% LIBOR floor would increase the Company’s annual interest expense by approximately $18.4million.The Company’s interest rate swaps are valued using discounted cash flow techniques that use observable market inputs,such as LIBOR-based yield curves, forward rates, and credit ratings. Changes in the fair value of the interest rate swaps of $(1.1)million, $2.1 million and $4.6 million were recorded as a (decrease)/increase to interest expense during the years ended June 30,2016, 2015 and 2014, respectively. A hypothetical increase in LIBOR rates of 100 basis points would favorably increase the fairvalue of the interest rate swaps by approximately $3.0 million.As of June 30, 2016 and 2015, there is no balance currently outstanding under the Company's Revolver.Financial instruments measured at fair value on a recurring basis are summarized below: Level June 30, 2016 June 30, 2015Liabilities Recorded at Fair Value in the Financial Statements: (in millions)Interest rate swap Level 2 $3.0 $4.1 F- 39 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) (14) COMMITMENTS AND CONTINGENCIESCapital LeasesFuture contractual payments under the terms of the Company’s capital lease obligations were as follows: Year Ended June 30, (in millions)2017 $6.82018 5.72019 5.12020 4.42021 4.4Thereafter 36.5Total minimum lease payments 62.9Less amounts representing interest (12.2)Less current portion (5.8)Capital lease obligations, non-current $44.9Operating LeasesThe Company leases office space, warehouse space, network assets, switching and transport sites, points of presence andequipment under non-cancelable operating leases. Lease expense was $102.0 million, $125.3 million, and $90.1 million for theyears ended June 30, 2016, 2015 and 2014, respectively.For scheduled rent escalation clauses during the lease terms or for rental payments commencing at a date other than the dateof initial occupancy, the Company records minimum rental expenses on a straight-line basis over the terms of the leases. Whenthe straight-line expense recorded exceeds the cash outflows during the respective period, the Company records a deferred leaseobligation on the consolidated balance sheets and amortizes the deferred rent over the terms of the respective leases.Minimum contractual lease payments due under the Company’s long-term operating leases are as follows: Year Ended June 30, (in millions)2017 $133.32018 135.12019 124.62020 104.22021 80.9Thereafter 332.0 $910.1Purchase CommitmentsAt June 30, 2016, the Company was contractually committed for $268.7 million of capital expenditures for constructionmaterials and purchases of property and equipment. A majority of these purchase commitments are expected to be satisfied in thenext twelve months. These purchase commitments are primarily success based; that is, the Company has executed customercontracts that support the future capital expenditures.F- 40 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) Outstanding Letters of CreditAs of June 30, 2016, the Company had $7.9 million in outstanding letters of credit, which were primarily entered into inconnection with various lease agreements.ContingenciesIn the normal course of business, the Company is party to various outstanding legal proceedings, asserted and unassertedclaims, and carrier disputes. In the opinion of management, the ultimate disposition of these matters, both asserted and unasserted,will not have a material adverse effect on the Company’s financial condition, results of operations, or cash flows.(15) RELATED-PARTY TRANSACTIONSAs discussed in Note 4— Spin-off of Business , the Company spun-off the OVS business to CII on June 13, 2014. In May2016, CII sold OVS to an entity that has a material ownership interest in the Company. The Company continues to have ongoingcontractual relationships with OVS, whereby the Company provides OVS and its subsidiaries with bandwidth capacity and OVSprovides the Company and its subsidiaries with voice services. The contractual relationships are based on agreements that wereentered into at estimated market rates. Subsequent to the spin-off date, transactions with OVS are included in the Company’sresults of operations.The following table represents the revenue and expense transactions the Company recorded with OVS: Year Ended June 30, 2016 2015 2014 (in millions)Revenues $6.6 $6.9 $7.0Operating costs $0.5 $1.0 $1.6As of June 30, 2016 and June 30, 2015, the Company had a balance due from OVS in the amount of nil and $0.6 million,respectively.As discussed in Note 11 – Equity , during Fiscal 2014, (i) the Board of CII authorized a non-liquidating distribution tocertain common unit holders of up to $10.0 million, and the Company advanced $10.0 million to CII, evidenced by anintercompany note receivable, (ii) the board of managers of CII authorized and paid a non-liquidating distribution to theCompany’s CEO of $3.0 million and amended the intercompany note receivable with CII for the incremental distribution, and(iii) the board of managers of CII authorized and redeemed for cash the vested common units held by a member of managementfor $9.0 million in full and final settlement of his outstanding common unit grants and further amended the intercompany notereceivable with CII for the incremental distribution. The amount due to the Company from CII of $22.0 million was reflected as areduction of stockholder’s equity as of June 30, 2014. In October 2014, the Company and CII entered into an agreement whichrelieved CII of its obligation to repay the outstanding intercompany note receivable balance. As of June 30, 2016, the Companydoes not have an outstanding receivable balance from CII.Dan Caruso, the Company’s Chief Executive Officer and Chairman of the Board is a party to an aircraft charter (ormembership) agreement through his affiliate, Bear Equity LLC, for business and personal travel. Under the terms of the charteragreement, all fees for the use of the aircraft are effectively variable in nature. For his business travel on behalf of the Company,Mr. Caruso is reimbursed for his use of the aircraft subject to quarterly and annual maximum reimbursement thresholds approvedby the Company's Nominating and Governance Committee. During the years ended June 30, 2016, 2015 and 2014, respectively,the Company reimbursed Mr. Caruso $0.5 million, $0.7 million and $0.1 million for his business use of the aircraft.F- 41 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) On June 28, 2012, Matt Erickson, President and COO of Global Sales & Customer Success, purchased $0.6 million inaggregate principal amount of 2020 Unsecured Notes at the offering price for such notes. Mr. Erickson qualifies as an “accreditedinvestor” (as defined in Rule 501 under the Securities Act), and this purchase was on terms available to other investors. InDecember 2014, in connection with the Partial Notes Redemption, approximately $0.2 million of Mr. Erickson’s notes wereredeemed. In May 2016, in connection with the Remaining Notes Redemption, the Company redeemed the remaining $0.4million held by Mr. Erickson. See Note 8 – Long-Term Debt . (16) SEGMENT REPORTINGThe Company uses the management approach to determine the segment financial information that should bedisaggregated and presented separately in the Company's notes to its financial statements. The management approach is based onthe manner by which management has organized the segments within the Company for making operating decisions, allocatingresources, and assessing performance. As the Company has increased in scope and scale, it has developed its management and reporting structure to supportthis growth. The Company’s dark fiber solutions, network connectivity, colocation and cloud infrastructure, Zayo Canada andother services are comprised of various related product groups generally defined around the type of service the customer isbuying, referred to as Strategic Product Groups ("SPG" or "SPGs"). Each SPG is responsible for the revenue, costs and associatedcapital expenditures of their respective services. The SPGs enable sales, make pricing and product decisions, engineer networksand deliver services to customers, and support customers for their specific telecom and Internet infrastructure services. With the continued increase in the Company’s scope and scale, effective October 1, 2015 the Company's chief operatingdecision maker ("CODM"), the Company's Chief Executive Officer, implemented certain organizational changes to themanagement and operation of the business that directly impacts how the CODM makes resource allocation decisions andmanages the Company. The change in structure had the impact of establishing a new reportable segment and re-aligning theCompany’s existing SPGs to the revised reportable segments. Prior to this change, the operating segments were reported asPhysical Infrastructure, which included the Company’s Dark Fiber, MIG and zColo SPGs, Cloud and Connectivity, whichincluded the Company’s Waves, SONET, Ethernet, IP and Cloud SPGs, and Other, which primarily included ZPS. The newstructure has moved the zColo and Cloud SPGs out of the Physical Infrastructure and Cloud and Connectivity reporting segments,respectively, creating a new reportable segment named Colocation and Cloud Infrastructure. The Dark Fiber and MIG SPGs arenow reported in the Dark Fiber Solutions operating segment, and Ethernet, IP, Waves, and SONET SPGs, are now reported in theNetwork Connectivity operating segment. SPGs report directly to the reportable segment managers who are responsible for theoperations and financial results for the Dark Fiber Solutions, Network Connectivity, Colocation and Cloud Infrastructure, andOther reportable segments (collectively, the “Revised Segments”). The segment managers report directly to the CODM, and it isthe financial results of those segments that are evaluated and drive the resource allocation decisions made by the CODM. On January 15, 2016, the Company acquired Allstream. As a result of this acquisition, management established a newreportable segment to account for the fact that this business is viewed as separate and distinct from the other segments forpurposes of operating decisions, allocation of resources, and performance assessment. The Zayo Canada segment, which iscomposed primarily of Allstream’s legacy business, has some of the business products and services that are like those within theCompany’s other SPGs but also has voice and unified communications and small enterprise businesses, which are additions to theCompany’s service offerings. The Zayo Canada segment contains all financial information related to the acquired Allstreambusiness, and to the extent products and services are included within the Zayo Canada segment, such products and services are notincluded within the Company’s other SPGs.The Company’s segments are further described below:Dark Fiber Solutions . Through the Dark Fiber Solutions segment, the Company provides raw bandwidthinfrastructure to customers that require more control of their internal networks. These services include darkF- 42 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) fiber and mobile infrastructure (fiber-to-the-tower and small cell). Dark fiber is a physically separate and secure,private platform for dedicated bandwidth. The Company leases dark fiber pairs (usually 2 to 12 total fibers) to itscustomers, who “light” the fiber using their own optronics. The Company’s mobile infrastructure services providedirect fiber connections to cell towers, small cells, hub sites, and mobile switching centers. Dark Fiber Solutionscustomers include carriers and other communication service providers, Internet service providers, wireless serviceproviders, major media and content companies, large enterprises, and other companies that have the expertise to runtheir own fiber optic networks or require interconnected technical space. The contract terms in the Dark FiberSolutions segment tend to range from three to twenty years.Network Connectivity . The Network Connectivity segment provides bandwidth infrastructure solutions over theCompany’s metro, regional, and long-haul fiber networks where it uses optronics to light the fiber and theCompany’s customers pay for access based on the amount and type of bandwidth they purchase. The Company’sservices within this segment include wavelength, Ethernet, IP and SONET. The Company targets customers whorequire a minimum of 10G of bandwidth across their networks. Network Connectivity customers include carriers,financial services companies, healthcare, government institutions, education institutions and other enterprises. Thecontract terms in this segment tend to range from two to five years.Colocation and Cloud Infrastructure . The Colocation and Cloud Infrastructure segment provides data centerinfrastructure solutions to a broad range of enterprise, carrier, content and cloud customers. The Company’s serviceswithin this segment include colocation, interconnection, cloud, hosting and managed services, such as security andremote hands offerings. Solutions range in size from single cabinet and server support to comprehensive internationaloutsourced IT infrastructure environments. The Company’s data centers also support a large component of theCompany’s networking equipment for the purpose of aggregating and distributing data, voice, Internet, and videotraffic. The contract terms in this segment tend to range from two to five yearsZayo Canada . The Zayo Canada segment is comprised of the recently acquired business of Allstream, Inc. andAllstream Fiber U.S. Inc. (together, “Allstream”). The services provided by this segment include legacy dark fiber,network connectivity, cloud and colocation infrastructure, voice, unified communications, managed security servicesand small and medium businesses (“SMB”) of Allstream. Voice provides a full range of local voice servicesallowing business customers to complete telephone calls in their local exchange, as well as make long distance, toll-free and related calls. Unified communications is the integration of real-time communication services such astelephony (including IP telephony), instant messaging and video conferencing with non-real-time communicationservices, such as integrated voicemail and e-mail. Unified communications provides a set of products that give usersthe ability to work and communicate across multiple devices, media types and geographies. Managed securityservices provide proactive services and solutions designed to enable organizations to operate in an environment ofconstantly evolving threats from organized cyber-crime. The service provides real-time threat analysis andcorrelation of information security threats, response and mitigations services, secure access to the internet and thecloud, information risk and compliance services, and management of the IT security envelope. Zayo Canadaprovides services to over 26,000 customers in the SMB market while leveraging its extensive network and productofferings. These include IP, internet, voice, IPT trunking, cloud private branch exchange, collaboration services andunified communications.Other . The Other segment is primarily comprised of ZPS. ZPS provides network and technical resources tocustomers who wish to leverage our expertise in designing, acquiring and maintaining networks. Services aretypically provided for a term of one year for a fixed recurring monthly fee in the case of network and on an hourlybasis for technical resources (usage revenue).Revenues for all of the Company’s products are included in one of the Company’s segments. The segment presentation hasbeen recast for all prior periods presented for comparability. The results of operations for each segmentF- 43 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) include an allocation of certain indirect costs and corporate related costs, including overhead and third party-financed debt. Theallocation is based on a percentage that represents management’s estimate of the relative burden each segment bears of indirectand corporate costs. Management has evaluated the allocation methods utilized to allocate these costs and determined they aresystematic, rational and consistently applied. Identifiable assets for each reportable segment are reconciled to total consolidatedassets including unallocated corporate assets and intersegment eliminations. Unallocated corporate assets consist primarily ofcash and deferred taxes.Segment Adjusted EBITDASegment Adjusted EBITDA is the primary measure used by the Company’s CODM to evaluate segment operatingperformance.The Company defines Segment Adjusted EBITDA as earnings/(loss) from continuing operations before interest, incometaxes, depreciation and amortization (“EBITDA”) adjusted to exclude acquisition or disposal-related transaction costs, losses onextinguishment of debt, stock-based compensation, unrealized foreign currency gains/(losses) on intercompany loans, and non-cash income/(loss) on equity and cost method investments. The Company uses Segment Adjusted EBITDA to evaluate operatingperformance, and this financial measure is among the primary measures used by management for planning and forecasting offuture periods. The Company believes that the presentation of Segment Adjusted EBITDA is relevant and useful for investorsbecause it allows investors to view results in a manner similar to the method used by management and facilitates comparison ofthe Company’s results with the results of other companies that have different financing and capital structures.Segment Adjusted EBITDA results, along with other quantitative and qualitative information, are also utilized by theCompany and its Compensation Committee for purposes of determining bonus payouts to employees.Segment Adjusted EBITDA has limitations as an analytical tool and should not be considered in isolation from, or as asubstitute for, analysis of the Company’s results from operations and operating cash flows as reported under GAAP. For example,Segment Adjusted EBITDA:·does not reflect capital expenditures, or future requirements for capital and major maintenance expenditures orcontractual commitments;·does not reflect changes in, or cash requirements for, working capital needs;·does not reflect the significant interest expense, or the cash requirements necessary to service the interest payments, onthe Company’s debt; and·does not reflect cash required to pay income taxes.The Company’s computation of Segment Adjusted EBITDA may not be comparable to other similarly titled measurescomputed by other companies because all companies do not calculate segment Adjusted EBITDA in the same fashion.F- 44 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) For the year ended June 30, 2016 DarkFiber Solutions Network Connectivity Colocationand Cloud Infrastructure Zayo Canada Other Corp/ Eliminations Total (in millions)Revenue from external customers $563.9 $683.5 $240.7 $213.3 $20.3 $ — $1,721.7Segment Adjusted EBITDA 406.5 359.3 119.4 45.2 4.5 — 934.9Total assets 3,155.0 1,901.8 1,069.4 477.6 33.4 90.3 6,727.5Capital expenditures 420.6 185.0 77.4 21.1 — — 704.1 For the year ended June 30, 2015 DarkFiber Solutions Network Connectivity Colocationand Cloud Infrastructure Zayo Canada Other Corp/ Eliminations Total (in millions)Revenue from external customers $525.9 $648.0 $150.0 $ — $23.2 $ — $1,347.1Segment Adjusted EBITDA 364.3 339.2 73.8 — 5.3 — 782.6Total assets 2,830.1 1,807.7 1,032.6 — 35.0 389.2 6,094.6Capital expenditures 279.7 195.1 55.4 — 0.2 — 530.4 For the year ended June 30, 2014 DarkFiber Solutions Network Connectivity Colocationand Cloud Infrastructure Zayo Canada Other Corp/ Eliminations Total (in millions)Revenue from external customers $419.8 $606.2 $75.6 $ — $28.1 $(6.5) $1,123.2Segment Adjusted EBITDA 287.6 325.9 37.3 — 8.0 (5.2) 653.6Capital expenditures 181.0 151.6 28.2 — — — 360.8 Reconciliation from Total Segment Adjusted EBITDA to loss from continuing operations For the year ended June 30, 2016 2015 2014 Total Segment Adjusted EBITDA $934.9 $782.6 $653.6Interest expense (220.1) (214.0) (203.5)(Provision)/benefit for income taxes (8.5) 8.8 (37.3)Depreciation and amortization expense (516.3) (406.2) (338.2)Transaction costs (21.5) (6.2) (5.3)Stock-based compensation (155.9) (200.7) (253.7)Loss on extinguishment of debt (33.8) (94.3) (1.9)Foreign currency (loss)/gain on intercompany loans (53.8) (24.4) 4.7Non-cash loss on investments (1.2) (0.9) —Loss from continuing operations $(76.2) $(155.3) $(181.6) F- 45 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) The following is a summary of geographical information: For the year ended June 30, 2016 2015 2014Revenue from external customers: United States $1,334.1 $1,193.5 $1,052.8Europe 174.1 153.6 70.3Canada 213.3 — —Other 0.2 — 0.1Total Revenue $1,721.7 $1,347.1 $1,123.2Long-lived assets: United States $4,236.1 $3,848.0 3,142.4Europe 527.8 454.0 429.9Canada 326.4 — —Other 25.6 0.3 0.3Total Long-lived assets $5,115.9 $4,302.3 $3,572.6The Company includes all non-current assets, except for goodwill and assets of discontinued operations, in its long-livedassets.(17) QUARTERLY FINANCIAL DATA (UNAUDITED)The following table presents the unaudited quarterly results for the year ended June 30, 2016: 2016 Quarter Ended September 30 December 31 March 31 (1)(2) June 30 (3)(4) Total (in millions)Revenue $366.8 $369.6 $478.0 $507.3 $1,721.7Operating costs and expenses Operating costs (excluding depreciation and amortizationand including stock-based compensation) 113.0 112.2 170.8 182.7 578.7Selling, general and administrative expenses (includingstock-based compensation) 84.6 85.0 112.5 104.3 386.4Depreciation and amortization 117.1 113.7 137.2 148.3 516.3Total operating costs and expenses 314.7 310.9 420.5 435.3 1,481.4Operating income 52.1 58.7 57.5 72.0 240.3Other expenses Interest expense (53.8) (51.2) (57.7) (57.4) (220.1)Loss on extinguishment of debt — — — (33.8) (33.8)Foreign currency loss on intercompany loans (10.7) (7.1) (11.1) (24.9) (53.8)Other expense, net (0.1) (0.1) (0.2) 0.1 (0.3)Total other expenses, net (64.6) (58.4) (69.0) (116.0) (308.0)(Loss)/earnings from operations before income taxes (12.5) 0.3 (11.5) (44.0) (67.7)Provision/(benefit) for income taxes 2.7 11.1 7.8 (13.1) 8.5Net loss $(15.2) $(10.8) $(19.3) $(30.9) $(76.2) (1)The Company realized an increase in revenue and operating expenses beginning January 1, 2016 as a result of theacquisitions of Viatel and Dallas Data Center.(2)The Company realized an increase in revenue and operating expenses beginning January 15, 2016 as a result of theacquisition of Allstream.F- 46 Table of ContentsZAYO GROUP HOLDINGS, INC. AND SUBSIDIARIESNOTES TO THE CONSOLIDATED STATEMENTS (Continued) (3)The Company realized an increase in revenue and operating expenses beginning April 1, 2016 as a result of the acquisitionof Clearview.(4)The Company completed debt refinancing transactions during April and May, resulting in a loss on debt extinguishment inthe fourth quarter. See Note 8 – Long Term Debt.The following table presents the unaudited quarterly results for the year ended June 30, 2015: 2015 Quarter Ended (1) September 30 (1) December 31 March 31 (3)(4) June 30 Total (in millions)Revenue $320.6 $323.9 $340.7 $361.9 $1,347.1Operating costs and expenses Operating costs (excluding depreciation andamortization and including stock-based compensation) 107.3 97.8 100.9 107.5 413.5Selling, general and administrative expenses(including stock-based compensation) (2) 156.8 32.1 83.0 86.5 358.4Depreciation and amortization 96.0 96.9 100.1 113.2 406.2Total operating costs and expenses 360.1 226.8 284.0 307.2 1,178.1Operating (loss)/income (39.5) 97.1 56.7 54.7 169.0Other expenses Interest expense (46.9) (53.4) (60.7) (53.0) (214.0)Loss on extinguishment of debt (5) — (30.9) (54.9) (8.5) (94.3)Foreign currency (loss)/gain on intercompany loans (14.7) (13.3) (13.2) 16.8 (24.4)Other expense, net — (0.1) — (0.3) (0.4)Total other expenses, net (61.6) (97.7) (128.8) (45.0) (333.1)(Loss)/earnings from operations before income taxes (101.1) (0.6) (72.1) 9.7 (164.1)Provision/(benefit) for income taxes 9.4 (4.4) (18.4) 4.6 (8.8)Net (loss)/earnings $(110.5) $3.8 $(53.7) $5.1 $(155.3)(1)The Company realized an increase in revenue and operating expenses beginning July 1, 2014 as a result of the acquisition ofAtlantaNap and Neo.(2)The Company realized an increase in compensation expense in the first quarter as a result of an increase in the estimated fairvalue of CII common units as a result of the pending IPO. The common unit fair values were further adjusted in secondquarter upon completion of the IPO. See Note 12— Stock-based Compensation .(3)The Company realized an increase in revenue and operating expenses beginning January 1, 2015 as a result of the acquisitionof IdeaTek.(4)The Company realized an increase in revenue and operating expenses beginning February 23, 2015 as a result of theacquisition of Latisys.(5)The Company completed debt refinancing transactions during the second, third and fourth quarters of Fiscal 2015, resultingin a loss on debt extinguishment for those respective periods. See Note 8— Long-Term Debt . (18) SUBSEQUENT EVENTS On July 22, 2016, the Company amended the terms of its Credit Agreement governing its Term Loan Facility (the “RepricingAmendment”). Per the terms of the Repricing Amendment, the $361.0 million term loan tranche under the Credit Agreement wasrepriced at par and will bear interest at a rate of LIBOR plus 2.75%, with a minimum LIBOR rate of 1.00%, which represents adecrease of 75 basis points. No other terms of the Credit Agreement were amended.F- 47Exhibit 21.1Subsidiaries of the Company Zayo Group Holdings, Inc. is publicly held and has no parent. Name of Subsidiary State of Incorporation or OrganizationZayo Group, LLC DelawareZayo Professional Services, LLC DelawareZayo Capital, Inc. DelawareAboveNet Communications, LLC DelawareLatisys- Chicago Holdings Corp. DelawareLatisys- Chicago, LLC DelawareLatisys Holdings Corp. DelawareLatisys Corp. DelawareLatisys-Denver, LLC DelawareLatisys-irvine, LLC DelawareLatisys-Irvine Properties, LLC DelawareLatisys- Ashburn Holdings Corp. DelawareLatisys- Ashburn, LLC DelawareLatisys SPV, Inc. CaliforniaClearview International, LLC TexasCVMS Waco Data Partners, LLC TexasZayo Canada Inc. CanadaAllstream Business Inc. CanadaAllstream Voice Inc. CanadaZayo Group International Ltd. United KingdomEgo Holdings Limited United KingdomEgo Midco Limited United KingdomEgo Acquisitions Limited United KingdomGeo Networks Limited United KingdomFibreSpeed Limited United KingdomGeo Metro Limited United Kingdom.Zayo Group UK Limited United KingdomZayo Group EU Limited United KingdomZayo Infrastructure (UK) Limited United KingdomZayo (UK) Limited United KingdomZayo Infrastructure France SA* FranceZayo Enterprise France SAS FranceNeo Telecom Group SAS FranceZayo France SAS FranceIntexan SARL FranceNeocenter Est SARL* FranceResoptic SAS* FranceNeocenter Ouest SAS * FranceNeoClyde SAS* FranceSerenisys SARL* FranceZayo Infrastructure Europe Limited IrelandZayo Infrastructure Ireland Limited IrelandEmerald Bridge Fibre Limited* IrelandZayo Infrastructure Deutschland GmbH GermanyZayo Deutschland GmbH GermanyZayo Infrastructure Nederland B.V. NetherlandsZayo Nederland B.V. NetherlandsZayo Infrastructure Belgium NV BelgiumZayo Infrastructure Switzerland AG SwitzerlandMFN Japan KK JapanupstreamNet Communications GmbH* Austria *Indicates a company that is not wholly owned directly or indirectly by Zayo Group Holdings, Inc. Exhibit 23.1Consent of Independent Registered Public Accounting FirmThe Board of Directors Zayo Group Holdings, Inc.:We consent to the incorporation by reference in the registration statement (No. 333 ‑199856) on Form S-8 of Zayo GroupHoldings, Inc. of our reports dated August 26, 2016, with respect to the consolidated balance sheets of Zayo Group Holdings,Inc. and subsidiaries as of June 30, 2016 and 2015, and the related consolidated statements of operations, stockholders’ equity,cash flows, and comprehensive loss for each of the years in the three-year period ended June 30, 2016, and the effectiveness ofinternal control over financial reporting as of June 30, 2016, which reports appear in the June 30, 2016 annual report on Form10 ‑K of Zayo Group Holdings, Inc. Our report dated August 26, 2016, on the effectiveness of internal control over financialreporting as of June 30, 2016, expresses our opinion that Zayo Group Holdings, Inc. did not maintain effective internal controlover financial reporting as of June 30, 2016 because of the effect of a material weakness on the achievement of the objectivesof the control criteria and contains an explanatory paragraph that states that material weaknesses have been identified and areincluded in management’s assessment. The material weaknesses related to an insufficient number of adequately trainedemployees with respect to the COSO 2013 Framework; ineffective monitoring activities over the information technologyorganization; ineffective general information technology controls, specifically program change and user access controls, overseveral technology systems; and inadequately designed and documented management review control and monitoring activitiesover the accounting for revenue recognition collectability criterion. /s/ KPMG LLPDenver, Colorado August 26, 2016 EXHIBIT 31.1CERTIFICATION OF CHIEF EXECUTIVE OFFICERPURSUANT TO RULE 13A-14(A) OF THE SECURITIES EXCHANGE ACT OF 1934I, Dan Caruso, Chief Executive Officer of Zayo Group Holdings, Inc. certify that:1.I have reviewed this Annual Report on Form 10-K of Zayo Group Holdings, Inc.;2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material factnecessary to make the statements made, in light of the circumstances under which such statements were made, notmisleading with respect to the period covered by this report;3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present inall material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periodspresented in this report;4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls andprocedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (asdefined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to bedesigned under our supervision, to ensure that material information relating to the registrant, including itsconsolidated subsidiaries, is made known to us by others within those entities, particularly during the period inwhich this report is being prepared;(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting tobe designed under our supervision, to provide reasonable assurance regarding the reliability of financial reportingand the preparation of financial statements for external purposes in accordance with generally acceptedaccounting principles;(c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report ourconclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period coveredby this report based on such evaluation; and(d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred duringthe registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) thathas materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financialreporting; and5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control overfinancial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or personsperforming the equivalent functions):(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financialreporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize andreport financial information; and(b)Any fraud, whether or not material, that involves management or other employees who have a significant role inthe registrant’s internal control over financial reporting. Date: August 26, 2016 By: /s/ Dan Caruso Dan Caruso Chief Executive Officer EXHIBIT 31.2CERTIFICATION OF CHIEF FINANCIAL OFFICERPURSUANT TO RULE 13A-14(A) OF THE SECURITIES EXCHANGE ACT OF 1934I, Ken desGarennes, Chief Financial Officer of Zayo Group Holdings, Inc. certify that:1.I have reviewed this Annual Report on Form 10-K of Zayo Group Holdings, Inc.;2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material factnecessary to make the statements made, in light of the circumstances under which such statements were made, notmisleading with respect to the period covered by this report;3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present inall material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periodspresented in this report;4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls andprocedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (asdefined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to bedesigned under our supervision, to ensure that material information relating to the registrant, including itsconsolidated subsidiaries, is made known to us by others within those entities, particularly during the period inwhich this report is being prepared;(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting tobe designed under our supervision, to provide reasonable assurance regarding the reliability of financial reportingand the preparation of financial statements for external purposes in accordance with generally acceptedaccounting principles;(c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report ourconclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period coveredby this report based on such evaluation; and(d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred duringthe registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) thathas materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financialreporting; and5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control overfinancial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or personsperforming the equivalent functions):(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financialreporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize andreport financial information; and(b)Any fraud, whether or not material, that involves management or other employees who have a significant role inthe registrant’s internal control over financial reporting. /s/Date: August 26, 2016 By: /s/ Ken desGarennes Ken desGarennes Chief Financial Officer Exhibit 32CERTIFICATION PURSUANT TO18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TOSECTION 906 OF THE SARBANES-OXLEY ACT OF 2002In connection with the Annual Report of Zayo Group Holdings, Inc. (the “Company”) on Form 10-K for the period ending June30, 2016 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned officers of theCompany, does hereby certify, to such each officer’s knowledge, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of theSarbanes-Oxley Act of 2002, that:(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results ofoperations of the Company, as of and for the periods covered by the Report. Date: August 26, 2016 By:/s/ Dan Caruso Dan Caruso Chief Executive Officer /s/Date: August 26, 2016 By:/s/ Ken desGarennes Ken desGarennes Chief Financial Officer
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