TEL AVIV (MarketWatch) -- AT&T Inc. /zigman2/quotes/203165245/composite T +2.30% and Deutsche Telekom AG /zigman2/quotes/207225900/composite DTEGY +2.23% /zigman2/quotes/209530574/composite DTEGF +4.25% /zigman2/quotes/206605042/delayed DE:DTEA +0.55% withdrew their applications to the Federal Communications Commission regarding their effort to combine AT&T and DT's U.S. unit, T-mobile. In a Thursday statement, the companies said they would focus on gaining antitrust clearance for the sale from the U.S. Justice Department. And AT&T said it would take a $4 billion charge -- $3 billion cash and $1 billion on the book value of spectrum -- in the fourth quarter to reflect potential deal-breakup payments to DT if the deal does not go through. The moves follow the FCC's decision to hold an administrative hearing on the merger, which has hit opposition on grounds that it would hurt competition in the U.S. wireless-phone sector. The $39 billion cash-and-stock deal was announced last March. The companies said they would seek antitrust clearance through their current litigation in U.S. District Court in Washington or through other means. "As soon as practical," the companies "intend to seek the necessary FCC approval," they said.