Zayo to Expand East Coast Data Center Presence

BOULDER, Colo. –
Zayo Group Holdings, Inc. (NYSE: ZAYO) will expand its East Coast data
center presence with a new location in Piscataway, New Jersey. The
carrier-neutral facility will add more than 47,000 total square feet and
up to five megawatts (MW) of critical power, addressing strong demand
for colocation in the tri-state area.

The anchor agreement with a leading financial services tenant includes
space and power in the data center and two dark fiber rings. Zayo will
renovate the remaining space and upgrade critical power to sell to
additional customers. The facility tethers to Zayo’s data center at 165
Halsey St. in Newark and includes connectivity to local carrier hotels
and more than 1,000 data centers globally.

“The tri-state area is one of the most important data center markets in
the world, with a diverse base of businesses, including financial and
professional service companies, contributing to strong demand,” said
Bruce Garrison, senior vice president of Zayo’s zColo business segment.
“This facility provides an excellent option for colocation space in the
Northeast with connectivity across North America and around the world.”

This expansion brings Zayo’s zColo portfolio to 51 data centers in more
than 30 markets across North America and Europe. In addition to space
and power, Zayo provides its customers with extensive connectivity over
its global fiber network.

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

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
130,000-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 24, 2018. 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

Investors:
Brad
Korch, Investor Relations
720-306-7556
IR@www.zayo.com