CoreSite Expands into Atlanta and Orlando Data Center Markets

Integration of American Tower Assets Delivers Increased Capacity, Robust Ecosystem and Greater Market Reach for Customers

CoreSite, a leading hybrid IT solutions provider and subsidiary of American Tower Corporation (NYSE: AMT) (“American Tower”), today announced its expansion into the Atlanta and Orlando markets with the integration of three American Tower assets into CoreSite’s data center ecosystem: Atlanta AT1 (55 Marietta Street NW, Atlanta, GA, 30303), Atlanta AT2 (1130 Powers Ferry Place, Marietta, GA, 30067) and Orlando OR1 (9701 S. John Young Parkway, Orlando, FL, 32819). All three data centers, which have a combined total of more than 250,000 square feet, now also offer access to the Open Cloud Exchange^® (OCX), CoreSite’s leading software-defined networking platform which provides fully managed, direct and secure connections into all of the major cloud service providers.

The Atlanta and Orlando data centers, former DataSite and Colo-ATL assets acquired by American Tower, provide businesses of all sizes the secure, reliable interconnection solutions to meet their critical infrastructure requirements. The OCX provides superior connectivity and a highly interconnected partner network needed to reach new markets, rapidly scale on-demand, reduce total cost of operation and accelerate IT modernization.

“With a long-standing track record of operational excellence in these markets, these facilities have been serving Atlanta- and Orlando-area businesses for years and now operate as an integral part of the broader data center ecosystem within CoreSite,” said Juan Font, President of CoreSite and SVP, U.S. Tower Division of American Tower. “The Atlanta and Orlando teams are equipped with the technical, security, remote hands and customer service expertise organizations rely on to future-proof their digital businesses. Offering low-latency, redundant and secure colocation services as well as the OCX, businesses of all sizes can seamlessly and dynamically scale their IT infrastructure to meet their ever-changing needs.”

As one of the fastest-growing data center markets, Atlanta has the third-largest concentration of Fortune 500 companies in the United States. CoreSite’s Atlanta data center campus includes AT1, which is located in the second most interconnected building in the heart of downtown Atlanta, and AT2 in Marietta. Together these assets are strategically positioned to serve this rapidly growing technology hub.

Orlando, a city whose goal is to be a “Future-Ready City,” offers enterprises, IT services providers and cloud service providers (CSPs) a densely populated market that is positioned to be a digital transformation leader. CoreSite’s Orlando campus is a 16-acre safe haven with regional and global reach that enables access via internet exchange to South America.

The integration of these assets into the CoreSite data center portfolio expands upon CoreSite’s offering to now include 27 data centers in 10 markets, 450+ networks, 23 native cloud onramps and 35,000+ interconnections.

“This Atlanta and Orlando market expansion delivers on the value proposition originally envisioned with the CoreSite acquisition,” said Steve Vondran, Executive Vice President and President, U.S. Tower Division of American Tower. “With the incorporation of these three assets, CoreSite and American Tower continue to develop the infrastructure required to offer seamless, end-to-end connectivity between mobile data networks at the tower and digital platforms at the data center campus. The complementary global communications real estate portfolio and financial wherewithal that American Tower brings will continue to accelerate our growth and leadership in the emerging 5G digital ecosystem.”

Related Resources:

• Learn more about the Atlanta Data Center Market and the Orlando Data Center Market

• AT1, AT2 and OR1 Facility Specification Sheets

• Open Cloud Exchange® Solution Brief

• See why businesses partner with CoreSite

About CoreSite

CoreSite, an American Tower company (NYSE: AMT), provides hybrid IT solutions that empower enterprises, cloud, network, and IT service providers to monetize and future-proof their digital business. Our highly interconnected data center campuses offer a native digital supply chain featuring direct cloud onramps to enable our customers to build customized hybrid IT infrastructure and accelerate digital transformation. For more than 20 years, CoreSite’s team of technical experts have partnered with customers to optimize operations, elevate customer experience, dynamically scale, and leverage data to gain competitive edge. For more information, visit CoreSite.com and follow us on LinkedIn and Twitter.

Forward-Looking Statements

This press release 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. 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 American Tower’s most recent annual report on Form 10-K, and other risks described in documents subsequently filed by American Tower from time to time with the Securities and Exchange Commission.

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