Deutsche Telekom, the owners of T-Mobile in the U.S., are reportedly looking into acquiring competitor Sprint. Together, the two companies would have a customer base that rivals AT&T.

According to The Daily Telegraph, Detsche Telekom is prepping a multi-billion dollar offer for Sprint Nextel, which is the third-largest wireless carrier in America. Together, the two companies would have a combined customer base near AT&T’s nearly 80 million subscribers.

Currently, AT&T is the second-largest wireless carrier in the U.S., behind only Verizon Wireless, which had an estimated 87.7 million subscribers as of July. While AT&T has lagged behind Verizon, the No. 2 company has been gaining ground, thanks, in part, to its exclusive deal for Apple’s iPhone.

Sprint is estimated to have a market value of $10 billion. The formal bid from Deutsche Telekom is expected to be received within weeks.

The news comes as the international corporation also hopes to merge T-Mobile U.K. with Orange. Combined, those two British carriers would have 37 percent of the market with 28.4 million subscribers. That deal is reportedly centered on the possibility of gaining access to popular handsets, like the iPhone, by having a larger customer base for negotiation leverage.

The Telegraph notes that T-Mobile U.S. has struggled recently, with revenue falling and subscribers leaving for larger carriers that offer better coverage, like AT&T and Verizon, or smaller, regional carriers that cost less. But combined with Sprint, it would have a subscriber base of 78.2 million, just behind AT&T.