After weeks of taking the hit, AT&T has now officially responded to Verizon’s “There’s a Map for That” campaign in the form of a lawsuit. The former company alleges that in the ad, which mocks the iPhone’s “There’s an App for That” theme, its wireless rival is misleading consumers about AT&T’s range of coverage by using a map with large amounts of blank space. According to the Wall Street Journal, AT&T contends the map suggests that the blank spots indicate the complete lack of coverage and not just 3G.

“By communicating that AT&T customers have no coverage in large parts of the country, Verizon is misleading the public about an essential component of the services AT&T offers,” the lawsuit says. Verizon, though, is dismissing the suit, which company spokesman Jim Gerace says to the WSJ “doesn’t have any merits. Our ads clearly explain that non-3G coverage is available elsewhere.”

(note: McCann New York is the agency behind “Map for that”.)

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