AT&T published an advertisement in several well known publications on Friday that took a stab back at T-Mobile. The advertisement says that T-Mobile subscribers experience twice number the dropped calls, twice the number of failed calls and data speeds that are 2x slower than AT&T’s 4G LTE network. It’s a big burn, but T-Mobile took a few swings at AT&T during the Consumer Electronics Show in January.


During that event, T-Mobile CEO John Legere took the stage with plenty of confidence in his company and said “[AT&T’s] network is crap. You’ll see us come with some swagger and some aggressive attitude [this year]. All in fun, of course.” AT&T clearly didn’t find much humor in Legere’s comments.

T-Mobile shrugged off AT&T’s advertisement in a statement to Bloomberg. “Wow. Looks like we struck a chord,” Mike Sievert, T-Mobile’s chief marketing officer said. “AT&T doth protest too much. Glad they’re spending their money to print our name.”

AT&T spokesperson Mark Siegal said that the advertisement is a “friendly reminder” that tests have showed its network is faster in third party tests.

The competition is a far cry from the buddy-buddy stance the two companies held when AT&T was in talks to acquire T-Mobile USA from Deutsche Telekom for $39 billion, or when the two entered a roaming agreement to support customers of both carriers during Superstorm Sandy.