7 Replies Latest reply: Dec 15, 2013 1:56 PM by RichmondDan
RichmondDan Level 3 Level 3 (515 points)

I bought my wife an unlocked iPhone 5s for Christmas (our first smartphone).  It is an unlocked 5s with a T-Mobile SIM installed at the factory.


Because AT&T and T-Mobile have different coverage areas, is it  possible to have a monthly prepaid account with both simultaneously?   Then just switch out the SIM cards to change carriers (assuming of course that I bought and activated a second SIM with AT&T)?

I realize the phone numbers would probably be different, but would the  carrier even need to know that you are switching back and forth between  carriers, as you move from one coverage area to another?

iPhone 5s, iOS 7.0.4, unlocked, with T-Mobile SIM