AT&T Subsidiaries
Significant subsidiary entities from SEC Exhibit 21(FY 2025)
Key Data Points
- Altman Z-Score 0.68 (distress zone, below 1.8 threshold)
- High earnings quality (cash-backed earnings)
Data sourced from SEC EDGAR filings. Not investment advice.
Overview
Jurisdiction Distribution
Subsidiary List (41)
| Subsidiary Name | Jurisdiction |
|---|---|
| Pacific Bell Telephone Company | California |
| Wisconsin Bell, LLC | Wisconsin |
| ATT Services, Inc. | Delaware |
| ATT Enterprises, LLC. | Delaware |
| Teleport Communications America, LLC | Delaware |
| ATT DW Holdings, Inc. | New York |
| ATT Mobility II LLC | Delaware |
| Legal Name | State Of IncorporationFormation |
| ATT Teleholdings, Inc. | Delaware |
| New Cingular Wireless PCS, LLC | Delaware |
| ATT Mobility LLC | Delaware |
| BellSouth Telecommunications, LLC | Georgia |
| Cricket Wireless LLC | Delaware |
| ATT Comunicaciones Digitales, S. de R.L. de C.V. | Mexico City |
| The Ohio Bell Telephone Company, LLC | Ohio |
| Southwestern Bell Telephone Company, LLC | Delaware |
| Illinois Bell Telephone Company, LLC | Illinois |
| Indiana Bell Telephone Company, LLC | Indiana |
| Michigan Bell Telephone Company, LLC | Michigan |
| Nevada Bell Telephone Company, LLC | Nevada |
| Legal Name | State of Incorporation/Formation |
| AT&T MVPD Group Holdings, LLC | Delaware |
| Illinois Bell Telephone Company, LLC | Illinois |
| Indiana Bell Telephone Company, LLC | Indiana |
| Michigan Bell Telephone Company, LLC | Michigan |
| Nevada Bell Telephone Company, LLC | Nevada |
| Pacific Bell Telephone Company | California |
| AT&T Teleholdings, Inc. | Delaware |
| Southwestern Bell Telephone Company, LLC | Delaware |
| The Ohio Bell Telephone Company, LLC | Ohio |
| AT&T Enterprises, LLC. | Delaware |
| Teleport Communications America, LLC | Delaware |
| AT&T DW Holdings, Inc. | New York |
| BellSouth Telecommunications, LLC | Georgia |
| New Cingular Wireless PCS, LLC | Delaware |
| AT&T Comunicaciones Digitales, S. de R.L. de C.V. | Mexico City |
| Wisconsin Bell, LLC | Wisconsin |
| AT&T Services, Inc. | Delaware |
| AT&T Mobility LLC | Delaware |
| AT&T Mobility II LLC | Delaware |
| Cricket Wireless LLC | Delaware |
As of FY2025 · SEC 10-K Exhibit 21 · Updated Feb 27, 2026
About SEC Exhibit 21
SEC Exhibit 21 is filed as part of a company's annual 10-K report. It lists all significant subsidiaries, including each entity's jurisdiction of incorporation or organization.
The number of subsidiaries can indicate a company's operational complexity, geographic reach, and corporate structure. Companies with many subsidiaries in tax-advantaged jurisdictions may have different tax optimization strategies.
This data is sourced directly from SEC EDGAR filings, which are publicly available.
Frequently Asked Questions
How many subsidiaries does AT&T have?
AT&T (T) lists 41 significant subsidiaries in its SEC Exhibit 21 filing for fiscal year 2025, including 37 US-based and 4 international entities. Exhibit 21 includes significant subsidiaries and may not represent the complete list.
Where does subsidiary data come from?
This subsidiary list is sourced from SEC EDGAR Exhibit 21, which is filed as part of a company's annual 10-K report. SEC filings are publicly available government-mandated disclosures.