CoreSite Data Centers: Locations, Map & Facts
CoreSite, a subsidiary of American Tower, runs network-dense colocation campuses in major US metros — strongest in Los Angeles and the Bay Area.
20Facilities on our map
6States & provinces
CaliforniaBiggest state
Colocation
Every mapped CoreSite facility
Map data © OpenStreetMap contributors (ODbL) · Basemap © CARTO · Mapped facilities only — the company's official count may be higher.
Where CoreSite operates
Facility list
| Facility | City | State |
|---|---|---|
| CoreSite - LA2 | Los Angeles | California |
| CoreSite SV2 | Milpitas | California |
| San Jose Colocation Center | San Jose | California |
| CoreSite SV3 | Santa Clara | California |
| CoreSite SV6 | — | California |
| CoreSite SV8 | — | California |
| CoreSite SV5 | — | California |
| CoreSite SV9 | — | California |
| CoreSite SV4 | — | California |
| CoreSite SV7 | — | California |
| CoreSite DC1 | — | District of Columbia |
| CoreSite AT1 | Atlanta | Georgia |
| CoreSite AT2 - Marietta Data Center | — | Georgia |
| CoreSite Chicago Data Center (CH1) | Chicago | Illinois |
| CoreSite Chicago Data Center (CH2) | Chicago | Illinois |
| CoreSite NY3 | Secaucus | New Jersey |
| CoreSite Secaucus Campus | — | New Jersey |
| CoreSite Reston Campus VA1 | Reston | Virginia |
| CoreSite Reston VA3 | Reston | Virginia |
| CoreSite Reston Campus VA2 | — | Virginia |
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Frequently asked questions
How many data centers does CoreSite have?
There are 20 mapped CoreSite facilities on our US & Canada map (updated August 1, 2026). The company's true global count is higher — some sites are unpublished, outside North America, or still under construction.
Where are CoreSite's data centers?
California leads with 10 mapped facilities, followed by Virginia (3), Illinois (2), Georgia (2).
Can I rent space in a CoreSite data center?
Yes — it sells colocation/wholesale space; enterprises can lease capacity directly.