Porting your mobile number to T-Mobile

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Joining T-Mobile

Instructions to switch to T-Mobile & bring your old mobile phone number with you:

The first step, if you haven't already, is to sign up with T-Mobile.

Once you have done that, ensure you have the following information ready:

  • Your original mobile phone number you want to keep.
  • The Port Authorization Code (PAC) from your previous network.
  • The expiry date of the PAC number (valid for 30 days from the date of issue).
  • The temporary mobile number from your new T-Mobile sim card.
  • You may also need the new SIM card number found on the back.

Call T-Mobile on 150 from your TMobile number, or on 0207 362 0200 from another phone and give them your PAC code from your previous network provider.

T Mobile will then confirm with you the switch date for when your original number will be automatically ported over to your new T-Mobile SIM.

Note: You may lose network service for a short period on the day of transfer. If this happens, turn your phone off and on occasionally, until you see the T-Mobile signal on your mobile phone screen. This will indicate that the transfer is complete.

Visit T-Mobile online for more information and their latest offers on mobile phones, contracts and PAYG deals.