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Are you with us? Transfer your mobile or landline number to T-Mobile and join the Uncarrier! If you have questions about how to transfer (port out) your mobile number to another carrier, we’ve got the information right here.

Thinking about switching to T-Mobile and wanting to keep your number?

You can keep the number you already have from another wireless or landline carrier. Transferring your number, also known as porting, is the process by which you transfer your phone number from one carrier to another. In rare circumstances, we are unable to transfer a number to our network. This is often because we don’t have a transfer agreement with the original service provider.

  • There is no charge for transferring your phone numbers.
  • Wireless line: the transfer will typically complete from 10 minutes to 3 hours.
  • Landline: the transfer may take anywhere from 3–10 days. The timing of your number transfer depends on the accuracy of the information provided.
  • If your phone is not active with your new phone number after you have waited the expected time, contact T-Mobile Customer Care at 1-800-T-Mobile. Sometimes we need to validate or modify information, such as misspelled names, addresses, etc. before we can complete the transfer.

Take advantage of these offers to switch to T-Mobile

  • Carrier Freedom​: T-Mobile will pay early termination fees or device payments for up to five lines that are currently under a postpaid contract with AT&T or Verizon.
  • Deals: Looking for a deal? We've got you covered. 
  • Bring your own device program: Love your current device? That's fine, too. 

Business and Prepaid accounts

More information on switching can be found on our pages for Business transfers or Prepaid lines.

How do I transfer my number to T-Mobile?

  • Get started online: Follow the number transfer instructions on the payment page at checkout. We recommend this method if you don't need to use your current phone until your new T-Mobile equipment arrives.
  • Contact us to let us know that you're ready to make the switch! For prepaid, call 1-877-778-2106.
  • Visit a store: Get some Facetime with us to begin the process.

Complete these steps to ensure a successful number transfer experience:

  1. First, check your eligibility​​​. In rare instances, your number may not be eligible if we don't have a transfer agreement with your original service provider. If this happens, we can give you a brand-new number.
  2. Here's the information you'll need to transfer your number: 
    • Phone number(s) you want to transfer from your current service provider.
    • Current service provider name.
    • Account number (usually located on your bill or service provider portal).
    • Billing address (including ZIP code).
  3. Contact your current service provider and do the following:
    • Request a Porting Pin / Password (needed to move your number over.
      • Some accounts may require a Temporary Port Out PIN.
      • Some accounts may require the general account PIN/Passcode.
    • Confirm your device is unlocked and can be ported to another service provider.
    • Request the removal of any blocks or requirements on your accounts so you can port.
    • Ensure all balances are paid to your current service provider.

Now you can start the transition to your new T-Mobile account

  • You'll get a text message from T-Mobile indicating your number transfer has started.
  • You may experience dual service during the transfer process. This is a period of up to 24 hours where service may be active on both phones. If you must call 911 during this time, stay on the line. 911 may not be able to call you back.
  • After completing your number transfer to T-Mobile, any remaining lines with your previous service provider that you do not intend to keep may need to be canceled to avoid unexpected charges.
  • Contact us to check the status of your transfer request at 1-877-789-3106.

Canceling with your current service provider

  • Your account with your previous service provider must remain active to transfer your number over. Make sure you do not cancel your account until after the transfer process has been completed.
  • Back up your contacts, voicemail, and text messages before transferring your number to T-Mobile. Your voicemail will reset after the port completes.
  • To make sure you don't miss any important calls or texts, it's best to wait to transfer your number until after you get your new device and SIM card.

Getting reimbursed for an Early Termination Fee (ETF)

  • Option 1: Contact us when you receive your new equipment. We recommend this method if you need to use your current phone until your new equipment arrives. 
  • Option 2: Follow the number transfer instructions on the payment page at checkout when purchasing your new equipment. We recommend this method if you don’t need to use your current phone until your new equipment arrives.

Transfer your T-Mobile number to another carrier

If you need help with your account or device, Contact us!. If you still want to transfer your number, contact the other carrier to start the port-out process. To ensure a successful and seamless experience transferring your number out of T-Mobile, you’ll need the following information for your new service provider:

  • Account Number (located on your T-Mobile account or bill).
  • Temporary Port Out PIN (unless you are on a Business or Government account).
    • The Temporary Port Out PIN may only be generated by the Primary Account Holder.
    • Authorized Users looking to switch will need to contact the Primary Account Holder to get their Temporary Port Out PIN.
  • Business accounts: You'll need the account PIN/Passcode.
  • Government Accounts: Contact us to get started.

Get a T-Mobile Temporary Port Out PIN

If you have a personal account, you will need to generate a Temporary Port Out PIN to move your phone number from T-Mobile. Use the steps below to generate your PIN, then provide it to your new service provider.

Only the Primary Account Holder will be able to generate a Temporary Port Out PIN.


T-Mobile app

  1. Download and log in to the T-Mobile app.
  2. Select Account, then select Profile Settings.
  3. Choose Line Settings, then select Request a transfer PIN.
  4. Follow the on-screen directions.

  1. Log in to
  2. In the top right corner, select My Account or your name.
  3. Choose Profile, then select Line Settings.
  4. Select Request a transfer PIN, then select Get a transfer PIN.
  5. Follow the on-screen directions.

Please note: While text messages are normally very quick it can sometimes take up to 24 hours for the message with your Temporary Port Out PIN to be received during extreme cases. Please wait before requesting a new PIN. You can only receive a maximum of 8 PINs in a 24-hour period.

Check port status

To check the status of your port request, contact us at 1-877-789-3106. We'll look up your request and give you any updates.

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