CoreSite Realty Corporation (NYSE: COR), a national provider of powerful, network-rich data centers, today announced the appointment of Christopher Ancell as Senior Vice President of Sales and Sales Engineering, effective October 8, 2012. In his role, Mr. Ancell will oversee the Company’s sales and sales engineering, and will report to Jarrett Appleby, the Company’s Chief Operating Officer. He will assume the responsibilities of Chris Bair who resigned and is pursuing other opportunities, effective October 1, 2012. Tom Ray, CoreSite’s Chief Executive Officer, commented, “We are pleased to welcome Chris Ancell to the CoreSite team. Chris brings 28 years of experience leading business units and sales organizations in the communications and technology-services industries. We believe that Chris’s experience, domain expertise and industry relationships will further accelerate our momentum around our go-to-market platform and sales engine.” Mr. Ray concluded, “We would also like to thank Chris Bair for his service and many contributions to CoreSite’s growth. We wish him success in his new endeavors.” Mr. Ancell comes to CoreSite following 12 years at CenturyLink and Qwest in leadership roles of increasing responsibility. Most recently before joining CoreSite, Chris was President of CenturyLink’s Business Markets organization, which generated more than $4 billion in annual revenues through delivery of a comprehensive portfolio of data and voice networking communications solutions across North America, Europe and Asia. Prior thereto, Chris served as Executive Vice President of Qwest’s Business Markets organization, where he was responsible for sales, marketing, product development and delivery of voice and data communications to large business and government customers. Prior to that, he held various sales roles at Qwest including Vice President of Sales, Western Region and Vice President of Hosting Sales. He has also held management positions at PricewaterhouseCoopers and with Oracle’s Telecommunications Consulting Practice. 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 www.CoreSite.com. 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 the company’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 the company’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; the company’s failure to obtain necessary outside financing; the company’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 the company’s good faith beliefs, assumptions and expectations, but they are not guarantees of future performance. Furthermore, the company 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 the company’s future results to differ materially from any forward-looking statements, see the section entitled “Risk Factors” in the company’s most recent annual report on Form 10-K, and other risks described in documents subsequently filed by the company from time to time with the Securities and Exchange Commission.