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Global Webscale Company Selects Zayo for Dark Fiber

Press Release

Large transaction significantly increases capacity for long-standing

BOULDER, Colo. –
A global webscale company has selected Zayo Group Holdings, Inc. (NYSE:
ZAYO) for a dark fiber solution to provide additional capacity to
support its data center growth in the Midwest. The solution consists of
more than 500 miles of long haul dark fiber located on a strategic
route. The multimillion-dollar deal utilizes Zayo’s in-place network
that was acquired from FiberLink in 2013.

“In this case, our long-standing customer continues to experience
increasing demand and needed dozens of dark fiber strands on a unique
route,” said Jack Waters, CTO and president of Fiber Solutions at Zayo.
“It’s another excellent illustration of Zayo’s ability to meet an
accelerating need for capacity over our embedded network.”

Dark fiber infrastructure provides nearly unlimited bandwidth and offers
companies the ability to scale to meet their long-term needs. Leveraging
investments made in this unique Midwestern route over recent years, Zayo
now provides dark fiber connectivity to three major webscale companies,
as well as multi-geography carriers and other enterprise customers in
key verticals. Zayo also sells lit services to a broader customer set
over this route and across its extensive long-haul dark fiber network.

For more information about Zayo, please visit

About Zayo Group

Zayo Group Holdings, Inc. (NYSE: ZAYO) provides communications
infrastructure services, 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
124,000-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 clients with
flexible, customized solutions and self-service through Tranzact, an
innovative online platform for managing and purchasing bandwidth and
services. 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
, Investor Relations