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Zayo Completes Los Angeles to Dallas Long Haul Fiber Route

Press Release

Company secures multiple dark fiber anchor tenants; introduces
diverse wavelengths on route

BOULDER, Colo. –
Zayo Group Holdings, Inc. (NYSE: ZAYO) today announced that it has
completed its long haul dark fiber route between Los Angeles and Dallas.
The route complements Zayo’s existing long haul network, enabling
diverse connectivity between major West Coast data center markets to
Dallas, one of the largest data center and interconnection markets in
the U.S.

Zayo secured an anchor tenant and began development of the 2,000-mile
route in 2015, which included upgrades and new construction. Since
construction began, Zayo has secured multiple additional dark fiber and
wavelengths anchor tenants on the route, supporting return on investment
for the strategic project.

Zayo will offer its full range of high-performance connectivity
solutions across the route, enabling 100G wavelengths service later this
month. The new wavelengths route will be diverse from other existing
carrier networks and from Zayo’s existing routes, and will enable unique
options between Los Angeles, San Diego, Phoenix, Tucson, El Paso, Ft.
Worth and Dallas. Customer demand is strong, with commitments already in

“Zayo is committed to success-based investments in our network, and this
expansion will help meet the high-bandwidth demands across many
industries,” said Jack Waters, CTO and president of Fiber Solutions at
Zayo. “We continue to collaborate with key customers and construct
critical strategic routes to ensure the availability of high-performance
fiber and 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
128,200-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.
Pat Nichols,
Corporate Communications
, 720-306-7556
Investor Relations