Porting your mobile number from T-Mobile to 1pMobile

Leaving T-Mobile

How to switch from T-Mobile & transfer your mobile number to 1pMobile

T-Mobile customer services can be contacted by either dialing 150 from a T-Mobile SIM, or 0207 362 0200 from another phone, to request your "Port Authorisation Code" (PAC) at the same time that you give your notice of leaving TMobile.

If you wish to use the 'text-to-switch' service, simply SMS text PAC to 65075 free from your T-Mobile SIM to get your PAC code by text and begin the porting process.

  • T-Mobile will provide your Porting Authorisation Code (PAC) either over the phone, by SMS text message or via email.
  • A PAC code is valid for 30 days. If you don't use it within thirty days it will expire and you will need to request a new one.
  • Your T-Mobile account will remain active until your number has been ported over to the new network. After the transfer is complete, your T-Mobile account will be automatically closed.

Many of the exclusive mobile phone deals are only available online, directly from the network providers listed here. While you wait for your Port Authorization Code from T-Mobile, get the best 1pMobile offer tailored to you.

Finally, provide your PAC code to your new 1pMobile mobile network operator who will then be able to port your existing phone number from T-Mobile. They will tell you what day the transfer is due to take place (usually within 48 hours).

Important: Do NOT cancel your contract before switching, otherwise you may lose your existing phone number and be unable to port it over. Once you provide your new network provider with your PAC code, your old account will be clsoed automatically once the number is successfully ported over.

Note: Credit on Pre-Pay / PAYG (Pay-As-You-Go) accounts cannot be transferred over and so any remaining credit balance will be lost after the switch is complete. If you have any credit left, one good option is to donate it to a charity before porting your number.

Joining 1pMobile

How to switch to 1pMobile & keep your T-Mobile mobile number

The first step is to sign up with 1pMobile to get your new SIM card.

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

  • Your original mobile phone number you want to keep.
  • The Porting Authorisation Code (PAC) from your previous T-Mobile network.
  • The expiry date of the PAC number (valid for 30 days from the date of issue).
  • The temporary mobile number from your new 1pMobile sim card.
  • You may also need the new SIM card number found on the back.

Log in to your 1pMobile account and activate your SIM if you haven't already.

You will be asked if you want to keep your number, and prompted to enter your Porting Authorisation Code (PAC).

You can then choose the day you would like to transfer your existing mobile phone number, providing at least two working days notice.

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 1pMobile signal on your mobile phone screen. This will indicate that the transfer is complete, and you can now use your existing phone number in your new mobile network provider.

Visit 1pMobile online for more information and their latest offers on mobile phone deals.

About 1pMobile

1pMobile is a mobile virtual network operator (MVNO) running on the EE network, with a mission to provide low cost calls, texts and data without the need of lengthy contracts or bundles that can lead to additional charges.

As a pre-pay (PAYG) service, 1p Mobile offers a simple tariff of 1p per MB of data, 1p per SMS text messages to UK mobiles & landlines, and 1p per minute calls to UK landlines & mobile phones.

About T-Mobile

T-Mobile UK is a mobile network operator in the United Kingdom, owned by Deutsche Telekom since 1999, and originally launched as One2One.

In 2009, Deutsche Telekom and Orange SA announced that the T-Mobile network was to be merged with Orange UK in a joint venture with EE Limited to form the UK's largest mobile network.