Switching to a new cell phone service provider can save you hundreds of dollars per year—and there’s no need to ditch your current phone to do so. To make the move, though, you may have to first ...

Want to unlock your off-contract AT&T iPhone to use with competing GSM carriers such as T-Mobile? As reported last week, now you can, the only hitch is it may take up to a week for AT&T to process the ...

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 ...