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Wireless Carrier Selects Zayo for Significant National Expansion

Press Release

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

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

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


Zayo Group Holdings, Inc.
Shannon Paulk,
Corporate Communications
, 720-306-7556
Investor Relations