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American Tower Corp

AMTNYSEReal Estate Investment TrustsFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Oct 27, 2026Score 7/302% above fair value
$188.30+0.52 (+0.28%)

Close on Nov 2, 2026Market cap $87.74BP/E 25.9Yield 3.61%

American Tower CoreSite Operating Data Center Facilities by Quarter

CoreSite Operating Data Center Facilities — Total U.S. Portfolio

QuarterlyAnnual

American Tower CoreSite Operating Data Center Facilities: 30 in Q3 2026, unchanged from a year earlier. That is the highest of the 20 quarters on record here.

Latest, Q3 2026
30
Period ended Sep 30, 2026
Change on a year earlier
0.0%
30 in Q3 2025
History
20 quarters
Since Q4 2021
Sources
20
Documents cited below

Where the Q3 2026 figure comes from

Source: American Tower SEC Form 10-Q FY2026Q3 (0001053507-26-000157, filed 2026-10-27) ↗

Interconnected U.S. colocation data center facilities acquired via CoreSite Realty Corp. (closed Dec 28, 2021) plus subsequent expansions/acquisitions.

Quarterly history

Hover a value to see the sentence it was read from; calculated values show their formula

PeriodEndedCoreSite Operating Data Center Facilities — Total U.S. PortfolioYear on yearSource
Q3 2026Sep 30, 2026300.0%American Tower SEC Form 10-Q FY2026Q3 (0001053507-26-000157, filed 2026-10-27) ↗
Q2 2026Jun 30, 2026300.0%American Tower SEC Form 10-Q FY2026Q2 (0001053507-26-000133, filed 2026-07-28) ↗
Q1 2026Mar 31, 2026300.0%American Tower SEC Form 10-Q FY2026Q1 (0001053507-26-000099, filed 2026-04-28) ↗
Q4 2025Dec 31, 202530+3.4%American Tower SEC Form 10-K FY2025 (0001053507-26-000035, filed 2026-02-24) ↗
Q3 2025Sep 30, 202530+7.1%American Tower SEC Form 10-Q FY2025Q3 (0001053507-25-000149, filed 2025-10-28) ↗
Q2 2025Jun 30, 202530+7.1%American Tower SEC Form 10-Q FY2025Q2 (0001053507-25-000120, filed 2025-07-29) ↗
Q1 2025Mar 31, 202530+7.1%American Tower SEC Form 10-Q FY2025Q1 (0001053507-25-000102, filed 2025-04-29) ↗
Q4 2024Dec 31, 202429+3.6%American Tower SEC Form 10-K FY2024 (0001053507-25-000025, filed 2025-02-25) ↗
Q3 2024Sep 30, 2024280.0%American Tower SEC Form 10-Q FY2024Q3 (0001053507-24-000130, filed 2024-10-29) ↗
Q2 2024Jun 30, 2024280.0%American Tower SEC Form 10-Q FY2024Q2 (0001053507-24-000105, filed 2024-07-30) ↗
Q1 2024Mar 31, 2024280.0%American Tower SEC Form 10-Q FY2024Q1 (0001053507-24-000084, filed 2024-04-30) ↗
Q4 2023Dec 31, 2023280.0%American Tower SEC Form 10-K FY2023 (0001053507-24-000011, filed 2024-02-27) ↗
Q3 2023Sep 30, 2023280.0%American Tower SEC Form 10-Q FY2023Q3 (0001053507-23-000161, filed 2023-10-26) ↗
Q2 2023Jun 30, 202328+3.7%American Tower SEC Form 10-Q FY2023Q2 (0001053507-23-000142, filed 2023-07-27) ↗
Q1 2023Mar 31, 202328+3.7%American Tower SEC Form 10-Q FY2023Q1 (0001053507-23-000114, filed 2023-04-26) ↗
Q4 2022Dec 31, 202228+3.7%American Tower SEC Form 10-K FY2022 (0001053507-23-000023, filed 2023-02-23) ↗

Breakdown

What makes up coreSite Operating Data Center Facilities

Cite this data

StockData. (2026). American Tower CoreSite Operating Data Center Facilities, quarterly Q4 2021–Q3 2026 [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.