Tuesday’s problem came four months after another AT&T outage left tens of thousands of customers in the dark for up to 12 hours. In those cases, AT&T users could not make any phone calls, send ...

AT&T is one of the biggest telecommunications companies in the U.S., serving over 100 million people in the country.

AT&T confirmed service is back to normal after some customers experienced slow phone and internet service on Thursday afternoon, July 3.

This afternoon, all our AT&T alarm bells are going off, as we spot what looks like a service outage. Subscriber reports of issues with AT&T started piling up on Down Detector about an hour ago.