AT&T Corporate Phone Number

In order to contact AT&T Corporate Office (Headquarters), you need to call the following Phone Number: 210-821-4105

If you need to get in touch with the main AT&T Corporate Office for official inquiries, executive matters, or corporate-related services, you can reach the AT&T headquarters by calling the dedicated corporate phone number. The AT&T Corporate Phone Number is 210-821-4105. This is the primary contact number for speaking directly with representatives from the corporate office.

Whether you are a customer, business partner, investor, or job applicant, this number connects you to AT&T’s headquarters where you can request assistance regarding corporate policies, investor relations, executive matters, and more. Keep in mind that the AT&T headquarters team does not handle general customer service issues such as billing, mobile plans, or technical support. For those inquiries, you should contact the AT&T customer service department.

AT&T’s corporate office is located in Dallas, Texas, and the phone number listed above is the best way to initiate formal communication with the company’s top-tier management or administrative departments. Calling during regular business hours—typically between 9:00 AM and 5:00 PM Central Time—is recommended to ensure a timely response.

If you’re searching for AT&T head office contact details, AT&T headquarters phone number, or how to reach AT&T corporate support, this is the official number to call: 210-821-4105.

AT&T Jobs Website

AT&T Human Resources Phone Number

What are AT&T Office Hours? AT&T Office Hours

If you’re planning to contact the AT&T Corporate Office, it’s important to know their official office hours to ensure your inquiry is handled promptly. AT&T office hours typically begin at 9:00 AM and extend until 5:00 PM, Monday through Friday, excluding major U.S. holidays. These are the standard business hours during which the company’s corporate departments are fully operational and available to assist with a range of inquiries.

During these business hours, all key departments at the AT&T headquarters are actively working. This includes executive support, legal services, human resources, public relations, corporate finance, marketing, business development, investor relations, and other high-level divisions. If you are looking to connect with AT&T corporate staff for matters related to executive concerns, media relations, employment verification, legal inquiries, or strategic partnerships, calling during these office hours is strongly recommended.

Please note that these hours apply to AT&T’s corporate headquarters and not necessarily to retail store locations or customer service call centers, which may operate on extended schedules or weekends. If you’re seeking general customer assistance, technical support, or account services, AT&T’s customer service department has different hours of operation and contact numbers.

To ensure quicker service when contacting the corporate office, try calling mid-morning—around 10:30 AM to 11:30 AM—when call volumes are often lighter. If you are searching for AT&T executive office hours, AT&T corporate hours of operation, or what time AT&T headquarters is open, the official schedule remains Monday to Friday from 9:00 AM to 5:00 PM Central Time.

When Was AT&T Founded?

AT&T, officially known as AT&T Inc., is one of the largest telecommunications and media companies in the United States and around the world. The company is headquartered in the state of Texas, with its main corporate office located in Dallas. AT&T was officially founded in the year 1983, following a reorganization of the original American Telephone and Telegraph Company, which dates back to 1885 and was initially established by Alexander Graham Bell and his associates.

Since its formation in 1983 as a modern telecommunications entity, AT&T has grown into a global leader in wireless communications, broadband internet, digital entertainment, and business networking services. With a strong legacy in the telecom industry, AT&T has continued to innovate through the decades, evolving from a traditional telephone service provider into a technology powerhouse offering mobile, fiber, satellite, and cloud-based solutions to both individual customers and large enterprises.

Today, AT&T employs over 268,540 people across the United States and internationally. These employees work in a variety of roles, including engineering, customer service, information technology, marketing, retail operations, cybersecurity, and corporate support. AT&T’s workforce is spread throughout its offices, service centers, and retail outlets, as well as in remote and hybrid positions supporting its global infrastructure.

AT&T remains a dominant force in the telecommunications industry, continuously expanding its reach through mergers, acquisitions, and cutting-edge technological advancements. The company’s commitment to connectivity, innovation, and service excellence makes it a top employer and service provider in the U.S. and abroad.

This information is provided by Contact-Human-Resources.com, a leading resource for accurate and up-to-date details about AT&T and other major corporations. Our goal is to help users find the most relevant contact numbers, HR details, and company background information. If you have any updated information, corrections, or suggestions to improve this listing, please don’t hesitate to contact us.

Corporate Phone Numbers
J.P. Morgan Chase Corporate Phone Number
TJ Maxx Corporate Phone Number
McDonald’s Corporate Phone Number
HCA Healthcare Corporate Phone Number
Aramark Corporate Phone Number
Bank of America Corporate Phone Number
Sears Corporate Phone Number
USPS Corporate Phone Number
Publix Corporate Phone Number
PWC Corporate Phone Number
Cargill Corporate Phone Number