@
Andreas8 找到说明了。。 看来先注册个账户研究一下
How to initiate a transfer to T-Mobile.
Give us a call: It's that simple! Give us a call at 1-800-937-8997, and let us know that you're ready to make the switch! For prepaid, call 1-877-778-2106.
Go to a store: You can also go to one of our stores and get some face-time with us. If you have a prepaid account that you'd like to transfer, come to one of our stores to begin the process.
Do it online: Rather begin your transfer online? Of course you can! Follow the number transfer instructions on the payment page at checkout. We recommend this method if you don't need to use you current phone until your new T-Mobile phone or SIM card arrives.