1 of 1 people found this helpful
It all depends on the model of the phone and if you had a tracking app on it.
For example for an iPhone you'd use ''Find My iPhone'' app and for Android i'd recommend ''Lookout Mobile Security''.
But other than that, T-Mobile does not have a way to locate your device through IMEI number .
Hope you can recover your phone .
Hey there! I'm so sorry to read this question -- it doesn't sound like a good situation to be in. When you say that it hasn't been registered, do you mean that the phone doesn't have an active SIM inside of it?
Hey again! Just wanted to swing back by here and see if you still had questions. We're happy to help offer some solutions but we need a bit of clarification first! Can you let us know what kind of phone you've lost and what you mean by registered? Thank you!