American Tower Corp
Close on Nov 2, 2026Market cap $87.74BP/E 25.9Yield 3.61%
American Tower CoreSite Operating Data Center Facilities by Year
CoreSite Operating Data Center Facilities — Total U.S. Portfolio
American Tower CoreSite Operating Data Center Facilities: 30 in FY2025, up 3.4% from a year earlier.
Where the FY2025 figure comes from
Source: American Tower SEC Form 10-K FY2025 (0001053507-26-000035, filed 2026-02-24) ↗
Interconnected U.S. colocation data center facilities acquired via CoreSite Realty Corp. (closed Dec 28, 2021) plus subsequent expansions/acquisitions.
Annual history
Hover a value to see the sentence it was read from; calculated values show their formula
| Period | Ended | CoreSite Operating Data Center Facilities — Total U.S. Portfolio | Year on year | Source |
|---|---|---|---|---|
| FY2025 | Dec 31, 2025 | 30 | +3.4% | American Tower SEC Form 10-K FY2025 (0001053507-26-000035, filed 2026-02-24) ↗ |
| FY2024 | Dec 31, 2024 | 29 | +3.6% | American Tower SEC Form 10-K FY2024 (0001053507-25-000025, filed 2025-02-25) ↗ |
| FY2023 | Dec 31, 2023 | 28 | 0.0% | American Tower SEC Form 10-K FY2023 (0001053507-24-000011, filed 2024-02-27) ↗ |
| FY2022 | Dec 31, 2022 | 28 | +3.7% | American Tower SEC Form 10-K FY2022 (0001053507-23-000023, filed 2023-02-23) ↗ |
| FY2021 | Dec 31, 2021 | 27 | – | American Tower SEC Form 10-K FY2021 (0001053507-22-000017, filed 2022-02-25) ↗ |
Breakdown
What makes up coreSite Operating Data Center Facilities
- San Francisco Bay / Silicon Valley, CA — Operating Data Centers9 · FY2025
- Los Angeles, CA — Operating Data Centers3 · FY2025
- Northern Virginia — Operating Data Centers3 · FY2025
- New York / Northern NJ — Operating Data Centers3 · FY2025
- Chicago, IL — Operating Data Centers2 · FY2025
- Boston, MA — Operating Data Centers1 · FY2025
- Orlando, FL — Operating Data Centers1 · FY2025
- Miami, FL — Operating Data Centers2 · FY2025
- Atlanta, GA — Operating Data Centers2 · FY2025
- Denver, CO — Operating Data Centers2 · FY2025
- Washington, D.C. — Operating Data Centers2 · FY2025
Cite this data
StockData. (2026). American Tower CoreSite Operating Data Center Facilities, annual FY2021–FY2025 [Data set]. Compiled from American Tower SEC filings and investor materials. https://stockdatahq.com/stocks/amt/kpis/dc-facilities-total
See every metric in the American Tower KPI table. Data updated Nov 1, 2026.