To change your T-Mobile phone number, you select from a list of available numbers after searching by city and state or ZIP code, rather than picking any custom number. This process is documented for changing an existing line's number using the T-Life app or T-Mobile.com.
How to change your T-Mobile phone number
Getting and understanding phone numbers is straightforward with T-Mobile, but the key limitation is that you choose from available numbers based on location, not a fully custom selection. The area code in a phone number is determined by your location search, so entering a specific city and state or ZIP code will show you numbers with that area code.
Change your number in the T-Life app
- Log in to the T-Life app.
- Select the Account tab. The Account tab was previously labeled Manage.
- Select the desired line.
- Select Change phone number.
- Review the information and select Acknowledge & continue.
- Enter the city and state or ZIP code for the desired location and select Search.
- Select one of the available numbers and select Continue.
- Review the details and select Submit.
Change your number on T-Mobile.com
- Log into T-Mobile.com.
- Select the desired line.
- Select Change phone number.
- Confirm the number and select Continue.
- Review the details and select Submit.
What to know before you change your number
You choose from available numbers after searching by location, and the documented process is only for changing an existing line's number. The page does not specify how many numbers are shown, whether a specific area code can be guaranteed, or any other selection limits. No specific iPhone or Android model requirements or OS versions are documented for this feature. T-Mobile DIGITS lets you choose which number to place a call from in the drop-down at the top of the screen. For iPhone Dual SIM, to choose the active line for cellular data, tap Cellular Data and then tap the number you want to use for cellular data.
Frequently Asked Questions
Can you pick any exact T-Mobile number you want?
No exact custom-pick flow is documented on the T-Mobile help page. The documented process only shows selecting from available numbers after a location search.
Can this be done on iPhone and Android?
T-Mobile documents the process in the T-Life app and on T-Mobile.com, but the page does not break out separate iPhone or Android steps or versions.
Can a number be changed without using the app or website?
The documented T-Mobile help page covers T-Life and T-Mobile.com only.
Can I transfer an existing telephone number to T-Mobile?
Yes, you can transfer an existing telephone number to T-Mobile through number porting.
Is it possible to customize the last four digits of my T-Mobile telephone number?
Customizing the last four digits is subject to availability.
What should I do if I encounter issues while selecting a telephone number with T-Mobile?
Contact customer support if you encounter issues while selecting a telephone number.
For the wider topic, see getting and understanding phone numbers.
