T-Mobile has said that its customers could see handset subsidies reduce by as much as 70% should the FCC's new rule go into effect.

Mobile's Michele Thomas, the proposed rule could force carriers to abandon their device payment plans, thereby impacting customers. The carrier also questioned the FCC's

T-Mobile and AT&T say US regulators should drop a plan to require unlocking of phones within 60 days of activation, claiming that locking phones to a carrier's network makes it possible to provide cheaper handsets to consumers.

T-Mobile and AT&T are expressing strong opposition to a new proposal from the Federal Communications Commission (FCC) that would mandate mobile carriers to unlock phones within 60 days of activation.