Learn how to register for a T-Mobile ID with your existing T-Mobile ID email address and password. With your T-Mobile ID, you can:
Keep in mind, there's a 72-hour (three-day) waiting period before you can register for a new T-Mobile ID after any of the following:
From your mobile device with the T-Mobile app:
From a computer:
Use these steps if you want to use a T-Mobile ID for multiple accounts or lines. You can also use these steps if you want to link a new number with an existing T-Mobile ID.
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