AT&T says that it covers 300,000 more square miles than T-Mobile, and that it had the fewest dropped calls in recent tests.

AT&T is finally making some noise, taking direct aim at T-Mobile for its so called Untruths in latest campaign.

AT&T Inc is exploring a sale of its advertising unit Xandr, according to a person familiar with the matter, as it appears to reverse expensive plans to transform from a wireless carrier to a media and ...