At&T Corp.

Doing business as At&T At&T Corp Part of At&T Enterprises, LLC

UEI
CB61T5EE6T53
CAGE
3SCQ4
Primary NAICS
517111 Wired Telecommunications Carriers
SAM.gov registration
Expired

Company facts

Self-certified in SAM.gov
  • For Profit Organization
Entity structure
Corporate Entity (Not Tax Exempt)
NAICS codes registered in SAM.gov
Corporate family
SAM.gov registration date

Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .

Recent federal awards

About At&T Corp.

AT&T Corp., a major telecommunications provider, delivers critical voice, data, and network infrastructure services to the federal government through its Defense Information Systems Agency (DISA) contracts. As one of the nation's leading telecommunications companies, AT&T provides sophisticated communications solutions essential to military operations and federal agency functions. The corporation maintains extensive federal contracting experience and operates as a single-award contract holder with DISA, positioning itself as a primary telecommunications infrastructure provider for the Department of Defense across multiple geographic regions and operational commands worldwide.

AT&T Corp. has demonstrated substantial telecommunications service delivery capabilities through its federal contract portfolio, primarily focused on Voice Internet Service Provider (VISP) Session Initiation Protocol trunking, telephony services, and Ethernet transport services. The company has received numerous delivery orders under its master VISP contract since February 2022, with individual task orders ranging from approximately $100 to over $685,000 in ceiling value, collectively totaling in excess of several million dollars. Funded by diverse Department of Defense agencies including Army Cyber Command, Marine Corps, Naval Sea Systems Command, Naval Computer and Telecommunications, US Fleet Forces Command (Atlantic Fleet), Defense Contract Management Agency, Air Force DFAS, Defense Health Agency, Defense Media Activity, Office of the Secretary of Defense, and multiple other military commands and supporting agencies, these delivery orders reflect AT&T's critical role in sustaining defense communications infrastructure. Services provided encompass Voice over Internet Protocol (VoIP) capabilities, Session Initiation Protocol (SIP) trunking with direct inward dialing functionality, emergency calling systems, Ethernet transport services, and associated transport network infrastructure. All delivery orders are executed on a firm fixed-price basis with no set-aside designations, awarded through full and open competitive procurements, with performance conducted at AT&T's Vienna, Virginia facility. Additionally, AT&T serves as a subcontractor to The Boeing Company on aerospace support initiatives, demonstrating its role within larger defense industrial base structures.

AT&T Corp. holds a single-award Indefinite Delivery Contract (IDC) with DISA designated as the Virtual Integrated Services Platform (VISP), valued between $15 million and $304 million, with an ultimate completion date of February 13, 2032. This master contract vehicle, awarded February 10, 2022, through full and open competition, enables AT&T to provide comprehensive telecommunications infrastructure and services globally to the Department of Defense across four major geographic regions: Hawaii, Indo-Pacific Command, Europe-Africa-Central Command, and North-South America Command. The VISP contract encompasses voice over internet protocol services, Session Initiation Protocol trunking, direct inward dialing, emergency calling systems, and associated transport network services supporting over 500 mandatory worldwide Department of Defense sites. Since the VISP IDC's award, DISA and other authorized Department of Defense agencies have issued over one hundred delivery orders as child contracts, creating a continuous stream of specific telecommunications requirements for individual military installations, commands, and functional areas. The contract structure allows defense agencies to task AT&T for responsive telecommunications solutions within established pricing parameters and service definitions, with delivery orders distributed across multiple funding sources representing the Defense Department's integrated approach to global communications infrastructure. This single-award indefinite delivery vehicle represents AT&T's primary mechanism for sustaining its role as a critical telecommunications service provider to the defense enterprise, ensuring reliable voice and data connectivity across military operations and supporting functions throughout the global Department of Defense footprint.

Contract vehicles

Quick answers

What is At&T Corp.'s UEI?

At&T Corp.'s Unique Entity ID (UEI) in SAM.gov is CB61T5EE6T53.

What is At&T Corp.'s CAGE code?

At&T Corp.'s CAGE code is 3SCQ4.

What is At&T Corp.'s primary NAICS code?

At&T Corp.'s primary NAICS code is 517111 (Wired Telecommunications Carriers).

Is At&T Corp. registered in SAM.gov?

At&T Corp.'s SAM.gov registration expired on February 8, 2025.

Who is At&T Corp.'s parent company?

At&T Corp. is part of At&T Enterprises, LLC.

Which contract vehicles does At&T Corp. hold?

At&T Corp. holds a place on 1 federal contract vehicle: DISA Global Network Services.

What is At&T Corp.'s most recent federal award?

At&T Corp.'s most recent federal contract award is VISP001305EBM defense information systems agency voice internet service provider session initiation protocol trunking… (HC101326FB587), from Defense Information Systems Agency, on August 21, 2026.

On GovTribe

See At&T Corp.'s full federal record

  • Federal contract awards
  • IDV awards
  • Contract vehicles
  • Subcontracting relationships
  • Funding analysis by agency, NAICS and set-aside
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