AT&T’s (T) bid to acquire No.4 wireless carrier T-Mobile USA failed spectacularly in late 2011 after the Justice Department sued to block the merger. There is clearly no love lost between AT&T and its former acquisition target, as the carrier on Thursday took out a full-page ad in several large newspapers slamming T-Mobile’s network. “The truth about T-Mobile’s network compared to AT&T,” the ad reads. “2x more dropped calls, 2x more failed calls, 50% slower download speeds.” The ad, pictured below, ran in The New York Times, The Wall Street Journal and in USA Today on Thursday.

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

An AT&T spokesman told Bloomberg that the ad was printed in response to T-Mobile’s long-running campaign that highlights its 4G network speeds.

“T-Mobile’s advertising is a combination of misguided and just plain wrong,” AT&T spokesman Mark Siegel said. “[The ad is] just a friendly reminder of the fact that independent third-party testing says AT&T’s network delivers faster speeds and fewer dropped calls than them.”

“Don’t be fooled by their misleading claims,” AT&T’s ad concludes. “For the better network experience, count on AT&T.”

The full ad follows below.

Zach Epstein has worked in and around ICT for more than 15 years, first in marketing and business development with two private telcos, then as a writer and editor covering business news, consumer electronics and telecommunications. Zach’s work has been quoted by countless top news publications in the US and around the world. He was also recently named one of the world's top-10 “power mobile influencers” by Forbes, as well as one of Inc. Magazine's top-30 Internet of Things experts.