T Suppliers List & Customers — AT&T Inc. | Varamir

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AT&T Inc.

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13F top-10 QoQ

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ties · implied moves · holdersMethod

Ties Implied moves Holders

supplier

ADArray Digital Infrastructure, Inc.

SentenceA substantial portion of Array revenues are derived from a small number of tenants concentrated in the wireless industry including Verizon, AT&T and particularly T-Mobile (collectively, large carriers).

AD 10-Kaccession 0000821130-26-000012filed Feb 20 '26AD

ARLOArlo Technologies, Inc.

SentenceWe supply our products to major wireless carriers around the world, including AT&T, T-Mobile, Verizon, Telstra and Vodafone.

ARLO 10-Kaccession 0001736946-26-000031filed Feb 27 '26ARLO

ASTSAST SpaceMobile, Inc.

SentenceWe have entered into a space-based wireless connectivity agreement with AT&T to provide SpaceMobile Service to AT&T's end users for use within the continental United States (excluding Alaska) and Hawaii.

ASTS 10-Kaccession 0001780312-26-000006filed Mar 2 '26ASTS

ATNIATN International, Inc.

SentenceIn July 2019, we entered into a Network Build and Maintenance Agreement with AT&T Mobility, LLC ("AT&T") that we subsequently amended through March 31, 2025 (the "FirstNet Agreement").

ATNI 10-Kaccession 0001104659-26-028515filed Mar 16 '26ATNI

CCICrown Castle Inc.

SentenceAT&T 19 % 19 % 18 %

CCI 10-Kaccession 0001051470-25-000089filed Mar 14 '25CCI

CDPCopt Defense Properties

SentenceAT&T Corporation 1.0 % 1.0 % 1.1 %

CDP 10-Kaccession 0000860546-25-000008filed Feb 21 '25CDP

CIENCiena Corp

SentenceA cloud provider customer accounted for approximately 13.3% of our total revenue for fiscal 2024 and 12.8% of our total revenue for fiscal 2023, and AT&T accounted for approximately 11.8% of our total revenue for fiscal 2024 and 10.6% of our total revenue for fiscal 2023.

CIEN 10-Kaccession 0000936395-24-000044filed Dec 20 '24CIEN

DHXDHI Group, Inc.

SentenceAs of December 31, 2025 notable customers of the ClearanceJobs and Dice businesses included AT&T, Adecco, CACI, Cisco, Capital One, General Dynamics, Kforce, Microsoft, and Northrop Grumman.

DHX 10-Kaccession 0001393883-26-000041filed Feb 12 '26DHX

DYDycom Industries Inc

SentenceDuring fiscal 2025, we derived approximately 20.1% of our total contract revenues from AT&T Inc., 12.1% from Lumen Technologies Inc., 8.5% from Comcast Corporation, 7.3% from Charter Communications, Inc., and 7.4% from another customer.

DY 10-Kaccession 0000067215-25-000012filed Feb 28 '25DY

INSGInseego Corp.

SentenceThese mobile operators include T-Mobile, Verizon Wireless, and AT&T in the United States, Rogers and Telus in Canada, and various companies in other vertical markets.

INSG 10-Kaccession 0001022652-26-000005filed Feb 20 '26INSG

SBACSBA Communications Corp

SentenceDomestic site leasing revenues increased $14.9 million for the year ended December 31, 2024, as compared to the prior year, primarily due to (1) organic site leasing growth , primarily from monetary lease amendments (due in part to our 2023 MLA with AT&T) and additional equipment added to our towers as well as new leases and contractual rent escalators and (2) revenues from 130 towers acquired and 39 towers built since January 1, 2023 , partially offset by lease non-renewals.

SBAC 10-Kaccession 0001034054-25-000002filed Feb 26 '25SBAC

TDSTelephone & Data Systems Inc

Sentence3.45 GHz and 700 MHz AT&T $ 1,018,044 $ 860,145 November 6, 2024 January 13, 2026

TDS 10-Kaccession 0001051512-26-000011filed Feb 24 '26TDS

customer

AALAmerican Airlines Group Inc.

Sentence• announced complimentary high-speed Wi-Fi sponsored by AT&T, exclusive to our AAdvantage members, which became effective in January 2026 on our narrowbody and dual-class regional fleets and will be available on nearly every American Airlines flight by spring 2026;

AAL 10-Kaccession 0000006201-26-000014filed Feb 18 '26AAL

AMTAmerican Tower Corp

SentenceWe spent approximately $123.0 million for acquisitions, including $25.7 million in payments made for acquisitions completed in 2023, $59.1 million in payments for sites acquired in connection with the AT&T transaction described in note 18 to our consolidated financial statements included in this Annual Report.

AMT 10-Kaccession 0001053507-25-000025filed Feb 25 '25AMT

ASTSAST SpaceMobile, Inc.

SentenceWe have executed lease agreements with Verizon and AT&T, and a similar agreement with FirstNet, and have filed notices of those agreements with the FCC.

ASTS 10-Kaccession 0001780312-26-000006filed Mar 2 '26ASTS

CCICrown Castle Inc.

Sentence22 % of the Company's towers are leased or subleased or operated and managed under a master lease or other related agreements with AT&T for a weighted-average initial term of approximately 28 years , weighted based on towers site rental gross margin.

CCI 10-Kaccession 0001051470-25-000089filed Mar 14 '25CCI

CHPTChargePoint Holdings, Inc.

SentenceChargePoint depends on connectivity from its charging stations to its data centers through several cellular service providers, such as Verizon, AT&T, Vodafone, and Semtech Corporation.

CHPT 10-Kaccession 0001777393-26-000013filed Apr 2 '26CHPT

ECHOEchoStar Corp

SentenceAs a mobile virtual network operator ("MVNO"), we depended on either T-Mobile or AT&T to provide us with network services under the amended Master Network Services Agreement (as amended, the "MNSA") and Network Services Agreement (as amended, the "NSA"), respectively.

ECHO 10-Kaccession 0001104659-26-021817filed Mar 2 '26ECHO

NNNextnav Inc.

SentenceEquipment, Network Colocation and Installation Agreement, dated October 7, 2019, by and between NextNav, LLC and AT&T Services, Inc.

NN 10-Kaccession 0001554855-26-000328filed Mar 17 '26NN

OPTUOptimum Communications, Inc.

SentenceTo support our mobile business, we have a nationwide mobile core network with multiple interconnection points (including Texas, California, Illinois, and two in New York), as well as the necessary interconnection points for our network partners T-Mobile and AT&T Inc. ("AT&T"), Appalachian Wireless and US Cellular.

OPTU 10-Kaccession 0001702780-26-000013filed Feb 13 '26OPTU

SIRISirius XM Holdings Inc.

SentenceIn 2024, we acquired the licenses in the 2.3 GHz Wireless Communications Service ("WCS") "C block" and "D block" from subsidiaries of AT&T.

SIRI 10-Kaccession 0000908937-26-000006filed Feb 5 '26SIRI

SSTISoundThinking, Inc.

SentenceWe rely on wireless carriers, mainly AT&T and Verizon, to provide access to wireless networks for machine-to-machine data transmissions, which are an integral part of our services.

SSTI 10-Kaccession 0001193125-26-132104filed Mar 30 '26SSTI