Number porting is regulated by the FCC and gives you the freedom to keep your wireless number even if you switch service providers. Moving from AT&T Wireless to T-Mobile can be accomplished in a few easy steps. T-Mobile will need some basic account information from you to initiate and complete the port. Your AT&T phone is not compatible with T-Mobile service unless it has been unlocked, so in most cases you will need a new phone. Tips Warnings Writer Bio
