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 ...

If you're an AT&T customer, you can unlock your phone using a portal on the AT&T website. To unlock an AT&T phone, make sure you've paid for the device in full, and don't have any unpaid bills. Active ...