To find out how much calls will cost, be sure to check out International roaming services.
Call back to the U.S. from another country
Dial +1, the area code, and the number (example:
Call a country outside the U.S.
Dial + followed by the country code, city code (if necessary), and local number.
Call toll-free numbers from outside the U.S.
Toll-free numbers such as 1-800 or 1-888 cannot be guaranteed to work while abroad. Be sure to look up alternate numbers before you take your trip.
Call T-Mobile Customer Service from another country
From your mobile device, dial+1-505-998-3793. We won't charge you anything for this call, no matter where you are. Go ahead and store this number in your phone's contact list for easy and quick dialing while you're away.