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Global Telecom & Technology (GTT) Extends Its Network Footprint Into Ten CoreSite Data Centers

   Global Telecom & Technology (GTT) Extends Its Network Footprint Into Ten
                            CoreSite Data Centers

Greater GTT Presence Gives CoreSite's Vertical Ecosystem Communities Expanded
Interconnection Opportunities

PR Newswire

DENVER, Nov. 05, 2012

DENVER, Nov. 05, 2012 /PRNewswire/ -- CoreSite Realty Corporation (NYSE: COR),
a national provider of powerful, network-rich data centers, today announced
that Global Telecom & Technology (GTT) has agreed to extend its backbone
network into ten CoreSite data centers. GTT provides one of the world's most
extensive networks across North America, Europe, and Asia and this significant
upgrade will provide CoreSite customers new opportunities to access diverse
business ecosystems through increased interconnection resources.

GTT utilizes its own network assets, including private, optical long-haul
networks and highly scalable IP networks, extended through network partners,
to provide customers worldwide with innovative connectivity solutions through
its Network as a Service proposition. These solutions include Ethernet
transport, nLayer IP Transit, cloud connectivity, collaborative networking,
and global peering. This expanded relationship with CoreSite gives GTT
customers access to CoreSite's extensive mesh of interconnection for the
networking and cloud communities and it provides CoreSite's customers access
to GTT's increased network footprint resulting in improved solutions for
redundancy and resiliency.

As a result of the network upgrade into the new data centers, GTT will peer on
Any2, the nation's second largest peering exchange, operated by CoreSite. GTT
will also provide seamless access to CoreSite's Open Internet Exchange,
including connections to AMS-IX, DE-CIX, and NYIIX through CoreSite locations.

"Providing our customers with diverse, extended interconnection opportunities
is critical," said Brian Warren, Vice President of Product Management at
CoreSite. "We are building relationships across CoreSite's network-centric
computing platform with top network providers such as GTT to bring our
customers best-in-class networking solutions."

"We believe that CoreSite provides the optimal, resource to help us extend our
network footprint and connect to our customers," said Richard Calder, Jr., GTT
President and CEO. "We are pleased to significantly upgrade our presence,
reaching CoreSite's growing customer base and robust ecosystems. CoreSite's
network-centric computing platform provides the diversity and resiliency that
we need to effectively grow our business."

For further information on CoreSite, visit or call
303-405-1000. Learn more about GTT at

About CoreSite
CoreSite Realty Corporation (NYSE: COR) is a national provider of data center
products and interconnection services. More than 750 customers such as Global
1000 enterprises, communications providers, cloud and content companies,
financial firms, media and entertainment, healthcare, and government agencies
choose CoreSite for the confidence that comes with customer-focused data
center products, service and support systems, and scalability. CoreSite's
network-centric computing platform is a business catalyst, featuring the Any2
Internet exchange and network ecosystems, which include access to 225+
carriers and service providers and a growing mesh of more than 15,000
interconnections. The company features a diverse colocation offering from
individual cabinets to custom cages and private suites, with 14 data center
locations in nine major U.S. markets. For more information, visit

About Global Telecom & Technology
GTT is a global network operator delivering managed data services to large
enterprise, government and carrier customers in over 80 countries worldwide.
GTT provides customers with innovative connectivity solutions by utilizing our
own network assets - linking over 100 Points of Presence across North America,
Europe and Asia - and extending them through our 800 partners worldwide. Our
Network as a Service proposition delivers flexible, reliable and scalable
network infrastructure, capable of both public and secure private
networking.We simplify network deployment by removing the complexity of
multi-vendor solutions while offering the cost efficiencies of a single
partner. For over 14 years GTT has provided world class project management,
rapid service implementation and global24/7end-to-end solution monitoring
and support. GTT is headquartered in the Washington, DC metro region with
offices in London, Dusseldorf and Denver. For more information visit the GTT

Forward Looking Statements
This earnings release and accompanying supplemental information may contain
forward-looking statements within the meaning of the federal securities laws.
Forward-looking statements relate to expectations, beliefs, projections,
future plans and strategies, anticipated events or trends and similar
expressions concerning matters that are not historical facts. In some cases,
you can identify forward-looking statements by the use of forward-looking
terminology such as "believes," "expects," "may," "will," "should," "seeks,"
"approximately," "intends," "plans," "pro forma," "estimates" or "anticipates"
or the negative of these words and phrases or similar words or phrases that
are predictions of or indicate future events or trends and that do not relate
solely to historical matters. Forward-looking statements involve known and
unknown risks, uncertainties, assumptions and contingencies, many of which are
beyond CoreSite's control, that may cause actual results to differ
significantly from those expressed in any forward-looking statement. These
risks include, without limitation: the geographic concentration of CoreSite's
data centers in certain markets and any adverse developments in local economic
conditions or the demand for data center space in these markets; fluctuations
in interest rates and increased operating costs; difficulties in identifying
properties to acquire and completing acquisitions; significant industry
competition; CoreSite's failure to obtain necessary outside financing;
CoreSite's failure to qualify or maintain our status as a REIT; financial
market fluctuations; changes in real estate and zoning laws and increases in
real property tax rates; and other factors affecting the real estate industry
generally. All forward-looking statements reflect CoreSite's good faith
beliefs, assumptions and expectations, but they are not guarantees of future
performance. Furthermore, CoreSite disclaims any obligation to publicly update
or revise any forward-looking statement to reflect changes in underlying
assumptions or factors, of new information, data or methods, future events or
other changes. For a further discussion of these and other factors that could
cause CoreSite's future results to differ materially from any forward-looking
statements, see the section entitled "Risk Factors" in CoreSite's most recent
annual report on Form 10-K, and other risks described in documents
subsequently filed by CoreSite from time to time with the Securities and
Exchange Commission.


Contact: Jeannie Zaemes, CoreSite Marketing Senior Director, +1 720-446-2006,