American Tower Corporation (also referred to as American Tower or ATC) is an American publicly held company, owner and operator of wireless and broadcast communications infrastructure in several countries. American Tower is headquartered in Boston, Massachusetts and has local offices worldwide. The company was formed in 1995 as a unit of American Radio Systems, and was spun off from that company in 1998 when that company merged with CBS Corporation. Following the merger, American Tower began international expansion by establishing operations in Mexico in 1998 and Brazil in 1999. The company is structured as a real estate investment trust (REIT.) Source: Wikipedia

American Tower Corporation Logo
Boston, MA, USA
American Tower Stock:
Retail Colocation (Cabinets, Cages, RU)
Company Type:


Company Hierarchy

American Tower Corporation has 2 Subsidiaries
Company Subsidiaries:
American Tower Corporation Logo
  • 34 Facilities
  • 10 Markets
  • 39.0 Megawatts
Colo Atl Logo
  • 1 Facilities

  • 1 Markets

  • 0 Megawatts

CoreSite Logo
  • 18 Facilities

  • 9 Markets

  • 39.0 Megawatts

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American Tower Corporation Data Center Map

American Tower Corporation Locations

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CoreSite SV1 55 S Market
55 S Market Street
San Jose, CA
Located in San Francisco Bay Area
  • 85,000 Gross SqFt
  • ??? NN
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55 S Market is a legacy Carrier Hotel in San Jose

CoreSite Somerville BO1
70 Innerbelt Road
Somerville, MA 02143
Located in Boston
  • 133,646 Gross SqFt
  • Utility: nStar

CoreSite’s Boston data center (BO1) borders Cambridge and Boston’s central business district, serving the many healthcare, financial, technological and educational enterprises located in the area.

CoreSite Chicago CH1
427 South LaSalle Street
Chicago, IL 60605
Located in Chicago: Downtown
  • 180,032 Gross SqFt
  • ??? NN
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Once owned by the Western Union company, the building was formerly known as "The Telegraph Building."

CoreSite DC1 - 1275 K Street NW
1275 K Street NW
Washington, DC 20005
Located in Washington, DC
  • 22,137 Gross SqFt
  • ??? NN
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1275 K Street is Washington DC's Network Hotel

CoreSite Denver DE1
910 15th Street
Denver, CO 80202
Located in Denver
  • 4,000 Gross SqFt
  • Does not own Owns the Building

Acquired from Comfluent, data center has the acted as the defacto building Meet-Me Room until 910Telecom set up its own MMR.

CoreSite DE2
639 E 18th Ave
Denver, CO
Located in Denver
  • 7,000 Gross SqFt

This is the legacy Comfluent Denver 2 site that is adjacent to the Level 3's Denver gateway site

CoreSite Los Angeles (LA1) One Wilshire
624 South Grand Avenue
Los Angeles, CA 90017
Located in Los Angeles
  • 173,000 Gross SqFt
  • ??? NN
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CoreSite's Any2 IXP (Peering Exchange) is the largest public IXP in the Western United States. The Unity Trans-Pacific submarine cable, also lands in the building, which provides undersea connectivity to Asia.

CoreSite Los Angeles (LA2) 900 N Alameda
900 N Alameda
Los Angeles, CA 90012
Located in Los Angeles
  • 281,078 Gross SqFt
  • ??? NN
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CoreSite's LA2 facility at 900 N Alameda is an elegant building that was built in 1940 as a Postal Annex. It was the central mail processing facility for Los Angeles until 1989. The site is now owned by CoreSite and is being incrementally converted to data center space.

CoreSite Miami MI1
2115 NW 22nd Street
Miami, FL 33142
Located in Miami
  • 48,000 Gross SqFt
  • Owns Owns the Building

CoreSite’s MI1 data center in Miami provides connectivity from the U.S. to South America, as well as existing and scalable connectivity to NAP of the Americas. Built to withstand a Category 5 hurricane.

CoreSite NY1
32 Avenue of the Americas
New York, NY 10013
Located in New York
  • 48,404 Gross SqFt
  • Does not own Owns the Building


June 2019

CoreSite marketing slick describing how to make connections from CoreSite locations to Microsoft Azure's ExpressRoute service.

September 2018

IDC Vendor Profile for Coresite

January 2018

CS CoreSite Equity Research Report (2018)

June 2017

CS CoreSite Equity Research Report (2017)