T supply chain intelligence for AT&T Inc.: verified suppliers, customers, debt relationships, acquisitions, and ownership data.
Data compiled by Redley Lamar · ChainSifter Intelligence
AT&T Inc. (T) is shown with relationship data already present in ChainSifter's database. Counts below come from stored supply-chain records and filing/source URLs where available; missing source URLs are not filled in or estimated.
| Ticker | Name | Confidence | Evidence |
|---|---|---|---|
| CIEN | Ciena Corporation | 92% | Reciprocal relationship from CIEN graph: Reciprocal relationship from T graph: Reciprocal relationship from CIEN graph: Reciprocal relationship from T graph: Reciprocal relationship from CIEN graph: … |
| CURB | Curbline Properties Corp. | 92% | Reciprocal relationship from CURB graph: Reciprocal relationship from T graph: Reciprocal relationship from CURB graph: Reciprocal relationship from T graph: Reciprocal relationship from CURB graph: … |
| DOX | Amdocs Limited | 92% | Reciprocal relationship from DOX graph: AT&T accounted for 25.9% and 24.5% of our revenue in fiscal years 2025 and 2024, respectively. |
| LUMN | Lumen Technologies, Inc. | 92% | Reciprocal relationship from LUMN graph: Reciprocal relationship from T graph: On February 2, 2026, we closed our transaction with Lumen Technologies, Inc. (Lumen) and acquired substantially all of L… |
| LUMN | Lumen Technologies, Inc. | 92% | On February 2, 2026, we closed our transaction with Lumen Technologies, Inc. (Lumen) and acquired substantially all of Lumen’s Mass Markets fiber business. |
| DLR | Digital Realty Trust, Inc. | 90% | Reciprocal relationship from DLR graph: Reciprocal relationship from T graph: Reciprocal relationship from DLR graph: Reciprocal relationship from T graph: Reciprocal relationship from DLR graph: Rec… |
| DY | Dycom Industries, Inc. | 80% | Reciprocal relationship from DY graph: Customers exceeding 5% of total revenues for Q4 2026 were Brightspeed, Charter, Comcast and Uniti. |
| SATS | EchoStar Corporation | 72% | Reciprocal relationship from SATS graph: Reciprocal relationship from T graph: Reciprocal relationship from SATS graph: Reciprocal relationship from T graph: Reciprocal relationship from SATS graph: … |
| TMUS | T-Mobile US, Inc. | 72% | Reciprocal relationship from TMUS graph: Reciprocal relationship from T graph: Reciprocal relationship from TMUS graph: Reciprocal relationship from T graph: Reciprocal relationship from TMUS graph: … |
| Ticker | Name | Confidence | Evidence |
|---|---|---|---|
| CTBB | Qwest Corp. NT | 92% | Reciprocal relationship from CTBB graph: In connection with the sale, we have entered into a transition services agreement under which we will provide to AT&T various support services and certain lon… |
| FIVN | Five9, Inc. | 90% | Reciprocal relationship from FIVN graph: value-added resellers such as AT&T Inc. and British Telecom, CDW Corporation, NWN Carousel, Presidio Networked Solutions Group, LLC, and Worldwide Technologies |
| LUMN | Lumen Technologies, Inc. | 72% | Reciprocal relationship from LUMN graph: Reciprocal relationship from T graph: Reciprocal relationship from LUMN graph: Reciprocal relationship from T graph: Reciprocal relationship from LUMN graph: … |
| LUMN | Lumen Technologies, Inc. | 72% | in “Accounts payable and accrued liabilities.” 23 AT&T INC. MARCH 31, 2026 Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations Dollars in millions except per… |
| SATS | EchoStar Corporation | 72% | Reciprocal relationship from SATS graph: Reciprocal relationship from T graph: Reciprocal relationship from SATS graph: Reciprocal relationship from T graph: Reciprocal relationship from SATS graph: … |
| TMUS | T-Mobile US, Inc. | 72% | Reciprocal relationship from TMUS graph: Reciprocal relationship from T graph: Reciprocal relationship from TMUS graph: Reciprocal relationship from T graph: Reciprocal relationship from TMUS graph: … |
| TMUS | T-Mobile US, Inc. | 72% | ns except per share amounts more advanced mobile internet services. Additionally, in November 2024, we agreed to purchase select spectrum licenses from United States Cellular Corporation (UScellular)… |
| CROWN-CASTLE-INTERNATIONAL-CORP | CROWN-CASTLE-INTERNATIONAL-CORP | 62% | 21,039 $ 8,679 $ — 1 Includes initial sales of receivables of $ 1,270 , $ 1,500 and $ 0 for the years ended December 31, 2024, 2023 and 2022, respectively. 2 Receivables net of allowance and other re… |
| DIRECTV-ENTERTAINMENT-HOLDINGS-LLC | DIRECTV-ENTERTAINMENT-HOLDINGS-LLC | 62% | Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations Dollars in millions except per share amounts Operating income increased in the first quarter of 2026. Our… |
| RESULTS-OF-OPERATIONS-AT-T-INC | RESULTS-OF-OPERATIONS-AT-T-INC | 62% | in “Accounts payable and accrued liabilities.” 23 AT&T INC. MARCH 31, 2026 Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations Dollars in millions except per… |
| UNITED-STATES-CELLULAR-CORPORATION | UNITED-STATES-CELLULAR-CORPORATION | 62% | ns except per share amounts more advanced mobile internet services. Additionally, in November 2024, we agreed to purchase select spectrum licenses from United States Cellular Corporation (UScellular)… |
| Instrument | Description | Confidence | Evidence |
|---|---|---|---|
| T-DEBT | Debt stack $69.6B | 90% | Market cache reports total debt of $69.6B. |
| Holder | Name | Confidence | Evidence |
|---|---|---|---|
| T-OWNER-VANGUARD-CAPITAL-MANAGEMENT-LLC | VANGUARD CAPITAL MANAGEMENT LLC | 90% | 13F overlay lists VANGUARD CAPITAL MANAGEMENT LLC as top holder; 2971 tracked holders. |
| Ticker | Name | Chain Index | Hops | Relationship Types |
|---|---|---|---|---|
| NOK | Nokia Oyj | 100.00 | 2 | |
| RNG | RingCentral, Inc. | 100.00 | 2 | |
| CTBB | Qwest Corp. NT | 100.00 | 1 | ['customer'] |
| LBRDK | Liberty Broadband Corporation | 100.00 | 2 | |
| SATS | EchoStar Corporation | 100.00 | 1 | ['customer', 'supplier'] |
| DOX | Amdocs Limited | 100.00 | 1 | ['supplier'] |
| FIVN | Five9, Inc. | 100.00 | 1 | ['customer'] |
| TPICQ | TPI Composites, Inc. | 100.00 | 2 | |
| LUMN | Lumen Technologies, Inc. | 100.00 | 1 | ['customer', 'supplier'] |
| CHTR | Charter Communications, Inc. | 100.00 | 2 | |
| CURB | Curbline Properties Corp. | 100.00 | 1 | ['supplier'] |
| TMUSI | T-Mobile US, Inc. 5.500% Senior Notes due June 2070 | 100.00 | 2 | |
| QVCGA | QVC Group Inc. | 100.00 | 2 | |
| DTEGY | Deutsche Telekom AG | 100.00 | 2 | |
| AKAM | Akamai Technologies, Inc. | 100.00 | 2 | |
| DLR | Digital Realty Trust, Inc. | 100.00 | 1 | ['supplier'] |
| CIEN | Ciena Corporation | 100.00 | 1 | ['supplier'] |
| ACN | Accenture plc | 100.00 | 2 | |
| DY | Dycom Industries, Inc. | 100.00 | 1 | ['supplier'] |
| TMUS | T-Mobile US, Inc. | 100.00 | 1 | ['customer', 'supplier'] |