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Zayo Announces New Long Haul Dark Fiber Route

Press Release

New route to connect Reno to Umatilla, Oregon

BOULDER, Colo. –
Zayo Group Holdings, Inc. (NYSE: ZAYO) today announced plans for a new
long haul dark fiber network between Reno, Nevada and Umatilla, Oregon.
The route is anchored by a webscale customer and is generating strong
demand from additional customers.

The network expansion will add more than 600 route miles along the
western U.S. and adds to the Portland
and Umatilla route announced last year
. The route, which will be
fully underground, connects the two cities via Prineville, Oregon. The
expansion creates a diverse route between Portland and other major
cities on the West Coast.

Reno is a fast-growing data center hub for webscale companies, based on
its proximity to Silicon Valley, affordable real estate and industrial
power and a favorable tax environment.

“The new route completes a piece of the puzzle that the western U.S.
needs to connect the dots between content companies’ core data center
locations in a way no other carriers can provide,” said Jack Waters, CTO
and president of Fiber Solutions at Zayo. “As more companies add data
centers in Oregon and Nevada, Zayo is well positioned to provide them
with high-capacity fiber infrastructure.”

For more information on Zayo, please visit

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
126,000-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

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
, 720-306-7556
Investor Relations