How do you change your phone number with t-mobile?

A few weeks ago, I lost my phone which was a prepaid service in t-mobile and now that I have a new phone, I want to use the same phone number that I had in the last phone but on a different/new phone. Is there anyway that I can change my new phone number and transfer the old number to the new phone? Is there a fee? I am also still using the t-mobile prepaid service as well. That way, the lost phone will be useless and I can still use the old number for the new phone!How do you change your phone number with t-mobile?
Your going to have to go to a T-mobile store. Just T-mobile, not an authorized dealer. They will give you a new sim card, which they may or not charge you for ($20), and they will call T-mobile pre-paid customer care to update your sim. You definitly need to get a new sim before you call any 1800 numbers. Plus t-mobile employees are more than happy to do this for you in the store. Saves you the aggrevation of finding imei numbers and sim card hooplah!How do you change your phone number with t-mobile?
Just call 1-877-778-2106 to activate the new phone %26amp; SIM on your old number, there's no fee to do this with T-Mobile Prepaid. Did you call to report the old phone lost and suspend your balance? If you still had a balance on the old phone when you reported it lost, you'll be able to get it back.