If your phone is lost, log into My T-Mobile to suspend your account. You are responsible for all calls made on your phone, so suspending your account as soon as you realize your phone is missing will help prevent any unauthorized use and additional charges. If you discover that your phone was lost, and you find it, return to My T-Mobile to restore service.
If you have Equipment Protection with Mobile Security on your account, you can use My T-Mobile to try locating, locking, or wiping your phone before contacting the insurance company, Asurion, to file a claim. If you do not have this feature on your account, then you will need to replace the phone. You have the ability to order a replacement phone through My T-Mobile.
Setting up your device’s PIN or lock code is an excellent way to reduce the risk of unauthorized calls and charges, particularly if your phone is stolen. For information on setting up your device’s PIN or lock code, go T-Mobile’s Phone and Device Support page.