The sale would have been part of a plan to divest 30% of T-Mobile's assets to appease government regulators and get the deal pushed through. AT&T began pursuing this route in earnest after the DoJ sued to block the deal in August. Then last month the Federal Communications Commission expressed serious concerns about the deal and issued a report recommending a formal hearing on its legality. AT&T subsequently withdrew its application to the FCC, choosing instead to focus on battling the DoJ and putting the divestiture plan into place.
In addition to Leap Wireless, Dish Network, MetroPCS and foreign buyers are interested in acquiring some of T-Mobile's assets, the Journal reports, though the stalled talks with Leap may have left things at a dead end.