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Cloud Service Provider Selects Zayo for Diverse Wavelengths

Press Release

100G Wavelength solution to connect data centers in key markets

BOULDER, Colo. –
A global cloud service provider has selected Zayo Group Holdings, Inc.
(NYSE: ZAYO) for a wavelength solution to provide full diversity for a
portion of its backbone network. Zayo will provide three 100G
wavelengths on four routes connecting the providers’ data centers in
four of the top markets across the U.S. The route fully leverages Zayo’s
existing network, including acquired network from Electric Lightwave,
with capital required only for equipment.

“The ability for this provider to offer very high levels of uptime to
their customers is central to its value proposition,” said Andrew
Crouch, Zayo’s president and COO. “These fully diverse, high-performance
routes will help ensure full network availability, preventing costly,
damaging downtime.”

According to Gartner,
the overall global cloud services market is forecast to grow 18 percent
this year, with annual double digit growth driving the total market to
approximately $383 billion by 2020. In addition to expanding their
offerings, cloud service providers are increasingly upgrading their
networks to diverse, high-performance fiber.

For more information, 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
122,000-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 25, 2016. 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