New to T-Mobile? Switching is easy Set up your device Using the app Sprint Migration Center All get started topics Ways to pay your bill All about your bill Line permissions Your T-Mobile ID Your PIN/Passcode All account resources topics T-Mobile network In-flight texting and Wi-Fi Wi-Fi Calling International roaming Mobile Without Borders All network & roaming topics Find the right plan Netflix on Us HotSpot plans Voicemail Use Mobile HotSpot All plans support topics Tutorials Troubleshooting Unlock your device Protect your device SIM card & eSIM All device assistance topics Get T-Mobile for Business Billing and payments Manage your account Orders and shopping Account Hub registration All business support topics

Thanks for your interest in T-Mobile for Business service. Before you make the switch, review important details for your device and phone number.

Device setup

Bring your own device

  • First check that your device is compatible. 
  • Next contact your current carrier to confirm or request a device unlock code for your device.
  • Then confirm your device is unlocked and if applicable, make sure it is paid off. 
  • For more information, review our Bring your own device (BYOD) guide for compatibility and eligibility. 

Get a new device

Activate a device with embedded SIM (eSIM)

  • When activating a device that has an eSIM, use the SIM card & eSIM page for detailed steps to activate.
  • Check out your device details for eSIM compatibility. 



  • You may be eligible for a device payment balance or Early Termination Fee reimbursement offer. 
  • Review the process on the Switch2T-Mobile page to get your reimbursement request started. 


What about your phone number?

Transfer your existing number

To switch your lines to T-Mobile, you’ll need to have the following information from your current carrier: 

  • Phone numbers  
  • Account number (often located on your bill or online account) 
  • Account PIN (often used to verify your account) 
    • Personal accounts may require a Number Transfer PIN 
    • Some carriers offer ‘porting protection’ which restricts carrier transfers. Contact your carrier for information on this service and how to remove any restrictions. 

Need a new number?

  • If you’re not switching your numbers from another carrier, your new devices are active out of the box, which includes SIM cards that were ordered for a new line of service. 
  • Upon activation we’ll send you an Activation Confirmation email containing all the details you’ll need.


Ready to join us? Review how to Switch your numbers to T-Mobile. 

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