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Zayo Acquires Data Center in Colorado

Press Release

Strategically located facility expands infrastructure in the state

BOULDER, Colo. –
Zayo Group Holdings, Inc. (NYSE: ZAYO) has purchased a colocation
facility located at 7579 W 103rd Avenue in Westminster, Colorado. The
acquisition is driven by strong customer demand in the area,
specifically along a high-tech corridor located between Boulder and
Denver and the underserved Northwest Corridor.

The facility includes 29,500total square feet and features
diverse fiber entrances, extensive interconnectivity, robust security,
and highly efficient power and cooling systems. The new data center
expands Zayo’s infrastructure footprint in the state, which now includes
four data centers and more than 4,000 fiber route miles, including
extensive metro fiber in Denver, Colorado Springs and Boulder. In
addition to serving existing and new customers, Zayo plans to support
the infrastructure needs of the Front Range startup and accelerator
community from this facility. This facility will be directly linked to
zColo’s data center at 1500 Champa.

“Zayo continues to experience accelerating demand in the Colorado Front
Range, driven by strong local growth and national requirements,” said TJ
Karklins, senior vice president of Zayo’s zColo business segment. “There
are limited Tier III equivalent data centers in Northwest Denver, this
location is strategic and will provide excellent access to our extensive
fiber network.”

For more information on Zayo’s data centers, please visit www.zayo.com/services/data-center-colocation/.

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 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.

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Zayo Group Holdings, Inc.
Media:
Shannon Paulk,
Corporate Communications
303-577-5897
press@www.zayo.com
or
Investors:
Brad
Korch
, Investor Relations
720-306-7556
IR@www.zayo.com