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Zayo Completes Successful E-Rate Season

Press Release

BOULDER, Colo. –
Dozens of school districts have selected Zayo Group Holdings, Inc.
(NYSE: ZAYO) for E-Rate solutions during the first calendar quarter of
2019. The contracts include a range of dark fiber and lit fiber-based
connectivity solutions to provide schools and libraries with high-speed
connectivity.

Zayo’s 2019 E-Rate deals utilize more than 1,100 route miles of existing
fiber network and include more than 800-route miles of new build in 11
states across the U.S. The new build will be leveraged for follow-on
tenants, including small cell opportunities.

The districts are funding the upgrades through E-Rate, a federal program
that subsidizes internet infrastructure for schools and libraries.
High-speed internet is vital for digital curricula, which includes
online educational resources and streaming media. Zayo works closely
with school districts across the nation to deliver high-quality,
fiber-based connectivity to replace or upgrade outdated technology.

“Zayo can provide school districts a full scope of solutions from dark
fiber to traditional lit services,” said Jack Waters, president of Zayo
Networks and COO. “Serving these schools is making a difference for
thousands of students and teachers across the country.”

Zayo’s E-Rate business is just one of many growing sectors within the
public, health and utilities mega vertical. As school districts are
increasingly relying on communications infrastructure to enable 21st
century learning, Zayo is well positioned to benefit from this demand
because of its deep, dense fiber networks.

For more information about Zayo, visit zayo.com.

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.

Media:
Shannon Paulk, Corporate Communications
303-577-5897
press@www.zayo.com

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