CoreSite Realty Corporation Updates Dial in Information for Third Quarter 2012 Conference Call

  CoreSite Realty Corporation Updates Dial in Information for Third Quarter
  2012 Conference Call

                       Change is Due to Hurricane Sandy

Business Wire

DENVER -- October 30, 2012

CoreSite Realty Corporation (the “Company”) (NYSE: COR), a national provider
of powerful, network-rich data centers, today announced revised call in
numbers for the Company's conference call to discuss third quarter 2012
financial results. The revised numbers are being issued as a precautionary
measure to avoid potential weather related interruptions with the Company's
conference call service provider located in New Jersey. CoreSite will release
its third quarter 2012 financial results prior to market open on Thursday,
November 1, 2012, to be followed by its quarterly conference call at 12:00
p.m. (Eastern time).

The call will be accessible by dialing +1-877-941-1429 (domestic) or
+1-480-629-9857 (international). A replay will be available until November 8,
2012, and can be accessed shortly after the call by dialing +1-877-870-5176
(domestic) or +1-858-384-5517 (international). The passcode for the replay is
4573751. Please note that the previously released dial in information will no
longer connect to the company’s call.

The quarterly conference call will also be offered as a simultaneous webcast,
accessible by visiting and clicking on the “Investors” tab.
An on-line replay will be available for a limited time immediately following
the call.

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


CoreSite Investor Relations Contact
+1 303.222.7276
CoreSite Media Contact
Jeannie Zaemes | CoreSite Marketing Senior Director
+1 720.446.2006 | +1 866.777.CORE
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