ATT Illinois Customer Service Phone Number

Phone Number of ATT Illinois is +1 312-263-1799 .
AT&T Illinois is one of the operational areas of At&T Inc., which is a public telecommunication service provider company. It was established on 5th of October, 1983. The headquarters of the AT&T is situated at Texas, United States of America. It was founded by the inventor of the telephone Alexander Graham Bell. The predecessors of the company was American Telephone and Telegraph Company. Some of the main subsidiaries of the company are AT&T Corporation, AT&T Mobility, BellSouth, Southwestern Bell, AT&T Teleholdings and Cricket Wireless.

Products of AT&T Illinois

There are several different products which are contained in the portfolio of the company such as fixed line, Mobile telephony, broadband, fixed-line internet services and digital television.

About AT&T Illinois

AT&T is regarded as America’s seventh largest company with more than 106 million mobile customers. Randall Stephenson is the Chairman and Chief Executive Officer of the company. It has over 242,000 employees. The company's services include internet access, telephony, broadband service, digital television, cable television service, landline phone services, etc. AT&T Inc. also offers online bill pay service through its website. The company is registered on the New York Stock Exchange for public trading and is also an active component of S&P 500.

Headquarters Address of AT&T Illinois

The headquarters of the company is located in Texas, United States and the permanent address of the company's headquarters is 208 South Akard Street, Dallas, Texas 75202, United States. The Illinois address of the company is 70 West Madison Street, Chicago, Illinois, United States.

Web Portal of AT&T

The official online website of the company is The customers can visit the website for any query or detailed information related to the company.

Customer Service Number of AT&T

The customer service number of the company is +1 312-263-1799.
The customers can call this number to talk to the customer service representatives of the company regarding any inquiry or complaint.

Additional Contact Numbers of AT&T

Corporate Phone Number- 1-210-821-4105.
Technical Support Number- 888.932.4678.
Billing Question Number- 888.932.4678.
Sales Question Number- 888.932.4678.

Social Links of AT&T

Facebook page of the ATT Illinois

Twitter link of the ATT Illinois

Linkedin of the ATT Illinois

ATT Illinois Address

The address of ATT Illinois is 70 West Madison Street, Chicago, Illinois, United States.

ATT Illinois Website

The Website of ATT Illinois is

ATT Illinois Customer Support Service Phone Number

The customer support phone number of ATT Illinois is +1 312-263-1799 (Click phone number to call).

The postal and official address, email address and phone number (helpline) of ATT Illinois Service Center and ATT Illinois customer service phone number is given below. The helpline of ATT Illinois customer service phone number may or may not be toll free.

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