Leverages Zayo’s fiber network in 30 markets
BOULDER, Colo. – 
      A major wireless carrier has selected Zayo Group Holdings, Inc. (NYSE:
      ZAYO) for fiber-to-the-tower (FTT) to new macro towers in 30 markets
      across 21 states. The deal is an expansion of an agreement
      announced in September 2016. Inclusive of both contracts, Zayo will
      connect thousands of macro towers for the customer. The contract is
      Zayo’s largest mobile infrastructure contract to date.
    
      The solution includes deployment of dark fiber infrastructure, in some
      cases replacing legacy Ethernet. The new infrastructure will support the
      carrier’s strategy of improving coverage and capacity across its network
      to accommodate increasing traffic and to prepare for 5G. The deployment
      will leverage Zayo’s existing fiber network and includes construction of
      hundreds of route miles of fiber.
    
      “This undertaking is the result of a trusted relationship with the
      customer,” said Dan Caruso, chairman and CEO of Zayo. “As they continue
      to densify to meet the growing demand for bandwidth, dark fiber provides
      the optimal long-term solution.”
    
      This agreement pertains to macro towers. Under other contracts, Zayo is
      deploying small cell infrastructure for this customer. In many cases,
      these are full turnkey implementations, including RF design, site
      acquisition, permitting and installation of equipment.
    
      “Mobile Infrastructure projects like these leverage existing fiber
      networks,” added Caruso. “They also result in further network expansion,
      which is then leveraged for other customer projects, including
      healthcare, school districts and other wireless carriers.”
    
For more information on Zayo, please visit zayo.com.
About Zayo Group
      Zayo Group Holdings, Inc. (NYSE: ZAYO) provides communications
      infrastructure solutions, including fiber and bandwidth connectivity,
      colocation and cloud infrastructure to the world’s leading businesses.
      Customers include wireless and wireline carriers, media and content
      companies and finance, healthcare and other large enterprises. Zayo’s
      127,000-mile network in North America and Europe includes extensive
      metro connectivity to thousands of buildings and data centers. In
      addition to high-capacity dark fiber, wavelength, Ethernet and other
      connectivity solutions, Zayo offers colocation and cloud infrastructure
      in its carrier-neutral data centers. Zayo provides users with flexible,
      customized solutions and self-service through Tranzact, an innovative
      online platform for managing and purchasing bandwidth. For more
      information, visit zayo.com.
    
Forward Looking Statements
      This press release contains a number of forward-looking statements.
      Words, and variations of words such as “believe,” “expect,” “plan,”
      “continue,” “will,” “should,” and similar expressions are intended to
      identify our forward-looking statements. No assurance can be given that
      future results expressed or implied by the forward-looking statements
      will be achieved and actual results may differ materially from those
      contemplated by the forward-looking statements. These forward-looking
      statements involve risks and uncertainties, many of which are beyond our
      control. For additional information on these and other factors that
      could affect our forward-looking statements, see our risk factors, as
      they may be amended from time to time, set forth in our filings with the
      SEC, including our 10-K dated August 22, 2017. We disclaim and do not
      undertake any obligation to update or revise any forward-looking
      statement in this press release, except as required by applicable law or
      regulation.
    
View source version on businesswire.com: https://www.businesswire.com/news/home/20180402005142/en/
Zayo Group Holdings, Inc.
Media:
Shannon Paulk,
      303-577-5897
Corporate Communications
press@www.zayo.com
or
Investors:
Brad
      Korch, 720-306-7556
Investor Relations
IR@www.zayo.com
