It appears that T-Mobile will remain the un-carrier.

According to Bloomberg, which cited a person with knowledge of the matter, Sprint has pulled the plug on merger talks with T-Mobile - and its CEO.

Dan Hesse, who has been CEO since 2007, is reportedly being booted as Sprint's chief, and will be replaced by Marcelo Claure, founder of Brightstar Corp., Bloomberg said.

Neither company is talking, but the deal reportedly collapsed over money, as well as the chilly reception the deal was getting from regulators.

News of a possible Sprint/T-Mobile merger emerged late last year, and has been framed as a way for the nation's third and fourth largest carriers to compete against the top two: AT&T and Verizon.

But reaction has been mixed, with detractors - including our own Sascha Segan - questioning whether we should really be reducing the number of major U.S. wireless carriers from four to three.

More recently, the FCC threw a wrench into rumored plans of a joint spectrum bid from T-Mobile and Sprint when the commission proposed rules that would prevent those joint bids. A French company - Iliad - also made a bid for T-Mobile, though there's no indication the carrier will accept the bid.

T-Mobile, meanwhile, has also been doing some rather innovative things lately, from free overseas data to dropping contracts altogether. Ironically, the carrier was able to make gains thanks in part to the money it received from AT&T after their 2011 proposed merger went south.

For more, check out 6 Reasons Sprint Shouldn't Buy T-Mobile and Sprint and T-Mobile's Painful Technical Path.