AT&T Inc. Headquarters & Corporate Office

: AT&T Inc

About AT&T Inc.

AT&T Inc. (NYSE: T) — an abbreviation of its predecessor’s historic name, the American Telephone and Telegraph Company — is one of the world’s largest telecommunications companies, a Fortune 10 American multinational providing wireless communications, broadband internet, fiber, and business networking services to more than 100 million consumers and millions of business customers across the United States and globally. Founded in 1885 in Boston, Massachusetts as the American Telephone and Telegraph Company — itself a spinoff of Alexander Graham Bell’s original Bell Telephone Company established in 1877 — AT&T held a decades-long monopoly over American telecommunications that was forcibly broken up by a landmark 1982 federal antitrust settlement, divesting into the “Baby Bells.” Today’s AT&T Inc. was reconstituted through the 2005 merger of SBC Communications with the original AT&T Corp., and is led by Chair and CEO John Stankey, who has served in the role since July 2020. AT&T is currently headquartered at Whitacre Tower (One AT&T Plaza), 208 S. Akard Street in downtown Dallas, Texas.

In a major strategic announcement in January 2026, AT&T confirmed it will relocate its global headquarters from downtown Dallas to a newly constructed 54-acre campus in Plano, Texas — expected to consolidate more than 6,000 employees from the Akard Street site and other locations, with the move anticipated to begin in late 2028. AT&T delivered strong full-year 2025 financial results: over 1.5 million postpaid phone net additions for the fifth consecutive year, over 1 million fiber net additions for the eighth consecutive year, 875,000 AT&T Internet Air (Fixed Wireless Access) net additions doubling the base in a single year, full-year free cash flow of $16.6 billion, adjusted EPS growth of nearly 9% to $2.12, and more than $12 billion returned to shareholders through dividends and buybacks. AT&T plans to expand fiber service to 40 million customer locations by end of 2026.

Quick Information

Industry

Telecommunications — Wireless, Broadband Internet, Fiber, TV & Business Networking

Founded

1885, Boston, Massachusetts (as American Telephone and Telegraph Company)

NASDAQ Ticker

Number of Employees

Approximately 150,000 employees

Corporate Office Hours

Wireless Customer Service: 24/7. Internet & Home Services: 24/7. Corporate headquarters: Monday–Friday 8:00 AM – 5:00 PM CT.

Email / Online Portal

AT&T does not provide a direct public email address for customer complaints. Submit formal complaints through the online portal at att.com/support or through the Notice of Dispute process at att.com/support/how-to/notice-of-dispute/

Website

www.att.com

Support Center

att.com/support

Investor Relations

investors.att.com

Business / Enterprise

corp.att.com

Careers Page

att.jobs

Products & Services

AT&T delivers a comprehensive telecommunications ecosystem — covering wireless mobility, high-speed broadband internet, fiber optics, fixed wireless access, and enterprise networking — across its Consumer and Business divisions. Their full range of products and services includes:

AT&T Wireless (Mobility) — postpaid and prepaid wireless phone plans, 5G smartphone service, and mobile broadband; AT&T operates one of the largest 5G networks in the United States and added over 1.5 million postpaid phone net subscribers in 2025; AT&T’s FirstNet — the dedicated nationwide wireless network for first responders and public safety — is a major differentiator in the government and public safety market
AT&T Fiber (Internet) — ultra-fast symmetrical fiber internet service (up to 5 Gbps) delivered to homes and businesses across AT&T’s expanding all-fiber network footprint; AT&T added over 1 million fiber net subscribers for the eighth consecutive year in 2025, targeting 40 million passings by end of 2026
AT&T Internet Air — AT&T’s 5G Fixed Wireless Access (FWA) home internet product for residences not yet reached by AT&T Fiber; achieved 875,000 net additions in 2025, doubling the customer base in a single year
AT&T Phone (Landline) — traditional voice landline service for residential customers in AT&T’s wireline footprint
AT&T TV / DirecTV (Legacy) — AT&T completed the separation of DirecTV into an independent entity (DirecTV LLC) in partnership with TPG; AT&T no longer consolidates DirecTV in its financial results but retains a minority equity stake
AT&T Business — comprehensive enterprise and government technology solutions including SD-WAN, MPLS networking, managed services, cybersecurity, cloud connectivity, IoT, and unified communications for Fortune 500 companies, federal agencies, and SMBs worldwide
FirstNet — AT&T’s dedicated nationwide first responder and public safety wireless network, built under a 25-year agreement with the U.S. government; FirstNet serves law enforcement, fire, EMS, and public safety agencies with dedicated, priority, and preemptive connectivity across the entire country
AT&T Global Business (International) — enterprise networking, managed services, and connectivity solutions for multinational corporations operating in more than 200 countries through AT&T’s global IP and cloud networking infrastructure

Corporate Phone Numbers

AT&T Wireless Customer Service

1-800-331-0500 — primary AT&T Mobility wireless customer service line for account questions, billing, plan changes, device issues, and general support. Available 24/7. Also accessible by dialing 611 from any AT&T wireless phone.

AT&T PREPAID Customer Service

1-800-901-9878 — dedicated AT&T PREPAID℠ customer service line. Available 24/7.

AT&T Internet, Phone & TV (U-verse / Broadband)

1-800-288-2020 — dedicated customer service line for AT&T Internet (fiber and DSL), home phone, and legacy U-verse TV services. Available 24/7.

AT&T Business (Small Business)

1-800-331-0500 (Wireless) / 1-855-855-5896 (Internet, Phone, TV) — dedicated small business customer service lines. Available during extended business hours.

AT&T Business / Enterprise (Large Business)

1-866-288-0008 — dedicated enterprise and large business customer service line. Available during business hours.

AT&T International (Roaming Support)

+1-314-925-6925 — dedicated international roaming support line for AT&T customers calling from outside the United States.

AT&T Digital Life (Smart Home Security)

1-855-288-2727 — dedicated AT&T Digital Life customer service line.

New Wireless Service / Sales

1-888-333-6651 — dedicated line for new AT&T wireless service and sales inquiries.

FirstNet Customer Service

1-800-574-7000 — dedicated FirstNet first responder network support line.

Corporate Headquarters Main Line

(210) 821-4105 — AT&T corporate headquarters main line. Note: Despite AT&T’s headquarters being in Dallas, Texas, this number uses a San Antonio, Texas area code — a legacy of AT&T’s origins as SBC Communications, which was headquartered in San Antonio.

How to Reach a Real Person at AT&T

The fastest way to speak with a live AT&T customer service representative is to call 1-800-331-0500 for wireless accounts or 1-800-288-2020 for internet, phone, and TV. Both lines are available 24 hours a day, 7 days a week. AT&T wireless customers can also dial 611 directly from any AT&T mobile phone to reach customer service instantly without needing to dial the full number. When the automated system answers, say “representative” or press 0 at any prompt to reach a live agent directly — though AT&T’s system may require you to verify your account before connecting.

You can also reach AT&T customer service through live chat on att.com — navigate to att.com/support, select your service type, and select “Chat” to connect with a live associate in real time. The AT&T mobile app (myAT&T) also provides in-app chat and messaging support available 24/7. AT&T’s online support portal accepts formal complaint submissions at att.com/support, and for legal-level disputes, the Notice of Dispute process at att.com/support/how-to/notice-of-dispute/ is the proper escalation channel — AT&T has 60 days to respond. AT&T also responds to customers through its @ATTHelp account on X (Twitter).

AT&T Headquarters & Corporate Office Address

AT&T has been headquartered in Texas since 2005 — first in San Antonio (as SBC Communications), and then in Dallas following the SBC-AT&T merger that year. Since 2008, AT&T has been anchored in downtown Dallas at Whitacre Tower — formally known as One AT&T Plaza — a 40-story office tower at 208 S. Akard Street named in honor of AT&T’s former Chairman and CEO Edward Whitacre Jr., who engineered the transformational mergers that created the modern AT&T. Whitacre Tower is one of downtown Dallas’s most prominent office buildings and has served as the nerve center of one of the world’s largest telecommunications companies for nearly two decades. In January 2026, AT&T announced it will move to an all-new 54-acre corporate campus in Plano, Texas — consolidating 6,000+ employees from Dallas and surrounding locations when the move begins in late 2028, making Plano one of the largest corporate headquarters addresses in North Texas.

AT&T Inc. — Current Corporate Headquarters (Whitacre Tower)

208 S. Akard Street
Dallas, Texas 75202
United States

AT&T Inc. — Future Corporate Headquarters (Opening ~2028)

54-Acre Campus (Address TBD)
Plano, Texas 75024
United States

AT&T — San Antonio Legacy / Investor Relations Mailing Address

208 S. Akard St., Dallas, TX 75202 / C/O Computershare, P.O. Box 43078, Providence, RI 02940-3078 (for stockholder correspondence)

AT&T — Bedminster, New Jersey (Network Operations)

One AT&T Way
Bedminster, New Jersey 07921
United States

AT&T — Atlanta Technology Center

675 West Peachtree Street NW
Atlanta, Georgia 30308
United States

AT&T — St. Louis Operations

909 Chestnut Street
St. Louis, Missouri 63101
United States

AT&T — New Jersey Operations

180 Washington Valley Road
Bedminster, New Jersey 07921
United States

AT&T — Canada (Toronto)

P.O. Box 4232, Toronto, Ontario M5W 5M9
Canada

For all formal written correspondence and Notice of Dispute filings, write to AT&T Inc., 208 S. Akard Street, Dallas, Texas 75202. For stockholder inquiries, write to AT&T Inc., C/O Computershare, P.O. Box 43078, Providence, RI 02940-3078. For formal legal disputes under AT&T’s arbitration terms, submit a Notice of Dispute online at att.com/support/how-to/notice-of-dispute/ — AT&T has 60 days from receipt to attempt to resolve the dispute before arbitration may proceed.

How to File a Complaint Against AT&T

Step 1 — Call Customer Service (24/7)
For the fastest resolution of most AT&T complaints — including billing errors, unauthorized charges, service outages, and equipment issues — call 1-800-331-0500 (wireless) or 1-800-288-2020 (internet, phone, and TV). Both lines are available 24/7. Have your account number, the specific charges or service dates in question, and a clear description of your complaint ready. Ask the representative to formally log your complaint and provide a case or ticket reference number.

Step 2 — Use Live Chat or the myAT&T App
For a written record of your complaint, use AT&T’s live chat at att.com/support or through the myAT&T app. Live chat creates a timestamped transcript of your interaction — valuable for billing disputes and later regulatory escalations. Live chat is available during extended hours on att.com.

Step 3 — Request Supervisor Escalation
If the first representative cannot resolve your complaint, ask immediately to be escalated to a supervisor or the Customer Resolution team. Supervisors have authority to approve exception credits, reverse unauthorized charges, issue service credits, and formally escalate unresolved issues. Always document the case reference number.

Step 4 — Submit a Notice of Dispute
For formally unresolved complaints, submit a Notice of Dispute through AT&T’s official dispute process at att.com/support/how-to/notice-of-dispute/. This is AT&T’s legally required pre-arbitration step under its Customer Agreement. An AT&T representative will contact you within 60 days to attempt resolution. This step is required before proceeding to formal arbitration.

Step 5 — Write to the Corporate Office
For formal written complaints, write to AT&T Inc., 208 S. Akard Street, Dallas, Texas 75202, Attn: Customer Relations. Include your full name, account number, all prior contacts and case reference numbers, copies of relevant bills or documentation, and the specific resolution you are requesting.

Step 6 — File a Complaint With the FCC
For unresolved complaints involving wireless service, internet billing, unauthorized charges (cramming), robocalls, or telemarketing violations, file a formal complaint with the Federal Communications Commission at fcc.gov/consumers/guides/filing-informal-complaint or call 1-888-CALL-FCC (1-888-225-5322). The FCC forwards all complaints to AT&T and requires a formal written response within 30 days.

Step 7 — File a Complaint With the FTC
For complaints involving deceptive advertising, misleading contract terms, or unauthorized billing, file a complaint with the Federal Trade Commission at ftc.gov or call 1-877-FTC-HELP (1-877-382-4357).

Step 8 — File a Complaint With Your State PUC
For landline, home phone, and local wireline service complaints, file a formal complaint with your state’s Public Utilities Commission (PUC). State PUCs regulate landline telephone service quality and billing practices and can investigate complaints against AT&T’s wireline operations.

Step 9 — File a BBB Complaint
File a public complaint with the Better Business Bureau at www.bbb.org. AT&T holds an A+ rating with the BBB and a formal complaint filing typically prompts a corporate-level response within 14 days.

Step 10 — Proceed to Arbitration
If all prior steps fail to resolve your complaint, AT&T’s Customer Agreement requires binding arbitration through the American Arbitration Association (AAA) — with the arbitration conducted in the county of your billing address. AT&T pays all arbitration fees for claims under $75,000. Small claims court remains an alternative for qualifying disputes