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During most of the 20th century, AT&T had a near monopoly on phone service in the United States through its Bell System of local operating companies. This led to AT&T's common nickname of "Ma …

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4 days ago · AT&T said a new corporate campus in Plano, Texas, would consolidate three existing locations in the Dallas area, including a downtown skyscraper.

How can we help you? Contact AT&T by phone or live chat to order new service, track orders, and get customer service, billing and tech support.

Transferring or “porting” your phone number from your old carrier to AT&T can be done in a few easy steps. Learn more about the process to switch from another carrier to AT&T.

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The AT&T Support Center provides personalized assistance for customers of AT&T Wireless, Internet, Prepaid, and more! Read our helpful Support articles to self-service and check on the status of your …