PAC Code Transfer Guide

Switch from Talkmobile to Giffgaff and keep your number using a PAC code

Written by: SIM Only Finder Editorial Team

Last updated: 2nd January 2026

Switch from Talkmobile to Giffgaff and keep your number using a PAC code

Written by: SIM Only Finder Editorial Team

Last updated: 2nd January 2026

Are you thinking about leaving Talkmobile and switching to Giffgaff? Then you're in the right place! Switching networks and keeping your number in 2026 is simple and easy thanks to Ofcom's policy changes.

We've put together a quick and easy to use switching guide. Our guides allow you to select the network you wish to switch to and from, and you will be given a step by step guide on how to keep your number and move to a new SIM Only Deal.

It is worth noting that if you wish to join Giffgaff and get a new number then you can use a STAC code in order to get a new number and will cancel your existing contract.

Talkmobile runs on Vodafone's network and Giffgaff runs on O2's network. It's worth checking O2's coverage in your area before you switch.

Joining Giffgaff and leaving Talkmobile

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Joining Giffgaff and transferring your number from Talkmobile is a simple process and usually takes no longer than 1-2 working days.

The process which will go through in more detail below involves requesting a PAC code from Talkmobile and handing it to Giffgaff.

You can either hand the PAC code over to Giffgaff during the ordering process or after you have received your new SIM card or eSIM has been activated.

1. Request a PAC code from Talkmobile

Switching from Talkmobile and keeping your current phone number is easy. You will never need to learn a new number or update all your contacts!

Here is how to get your PAC (Porting Authorisation Code) from Talkmobile:

  • Text "PAC" followed by the last two digits of your Talkmobile account PIN to 65075. You will receive your PAC code and information about any early termination fees via text message. This is a free service.
  • Online: Log in to your Talkmobile online account. Go to the "Switching" section to request or view your PAC code.
  • Phone: To request your PAC code, call 5888 from your Talkmobile phone or 0333 304 8064 from any other phone.
    • Customer support is avaliable;
      • Monday: Friday: 8am to 8pm
      • Saturday: 9am to 6pm
      • Sunday: 10am to 5pm
  • Live Chat: Start an online chat with Talkmobile customer service through their website.

Your PAC code is valid for 30 days, so you can request it before you get your new SIM card.

If you want a new number and do not wish to keep your current number, you will need to request an STAC code instead of a PAC code. Text "STAC" to 75075 to get your STAC code.

2. Order a SIM only deal from Giffgaff

If you haven't yet ordered your new Giffgaff SIM Only deal, you can use our free comparison engine, which will show you the cheapest Giffgaff deals available on the market.

Current Giffgaff SIM only deals

View more Giffgaff deals
Giffgaff SIM Card 5G
Giffgaff SIM or eSIM 1 month contract
2 GB Data
Unlimited Minutes
Unlimited Texts
Monthly £6.00
See Deal Available via 2 retailers
Powered By: O2 Order your SIM then swap to eSIM Free EU Roaming No Credit Check
Choose a retailer
    Giffgaff SIM Card 5G
    Giffgaff SIM or eSIM 1 month contract
    1 GB Data
    Unlimited Minutes
    Unlimited Texts
    Monthly £6.00
    See Deal Available via 2 retailers
    Powered By: O2 Order your SIM then swap to eSIM Free EU Roaming No Credit Check
    Choose a retailer
      Giffgaff SIM Card 5G
      Giffgaff SIM or eSIM 1 month contract
      5 GB Data
      Unlimited Minutes
      Unlimited Texts
      Monthly £8.00
      See Deal Available via 2 retailers
      Powered By: O2 Order your SIM then swap to eSIM Free EU Roaming No Credit Check
      Choose a retailer

        If you already have your new SIM Card, feel free to skip to step 3 of this article

        During the ordering process you may be given the opportunity to share your PAC code from Talkmobile to Giffgaff, if you choose this option then the number transfer process will start once your new sim card arrives and you activate it in by putting it in your phone and turning it on, this also means you can skip to step 4 of this article if you wish!

        If you are not given the opportunity to hand over your PAC code when ordering then there's no need to panic. Once your new sim card from Giffgaff has arrived, just continue to step 3 of this article.

        It is also worth calling out that it doesn't matter if you are able to hand over your PAC code from Talkmobile whilst buying your new sim from Giffgaff or not it's just slightly more convenient but the outcome is the same!

        Does Giffgaff require a credit check?

        No, Giffgaff offers SIM only plans without a credit check. If avoiding a credit check is important to you, that makes switching to Giffgaff more straightforward.

        Does Giffgaff support eSIM?

        Yes, Giffgaff supports eSIM. That means you may be able to switch without waiting for a physical SIM card, depending on the plan and activation process you choose.

        3. Give the PAC code to Giffgaff

        Once you have your PAC code, follow these steps to give it to Giffgaff:

        • Activate your Giffgaff SIM card: If you have not already, activate your Giffgaff SIM card.
        • Find the number transfer link: After activating your SIM, Giffgaff will provide you with a link to transfer your number.
        • Enter your PAC code: Follow the link and enter your PAC code when prompted.

        Giffgaff will then handle the transfer of your number.

        Important Notes:

        • If you want a new Giffgaff number and don't need to keep your current number, request a STAC code instead of a PAC code from your current network.
        • If you don't use your PAC code within 30 days, you will need to request a new one.
        • If you can't find your Giffgaff activation code, you can activate your SIM using the serial number (found on the back of the SIM card).

        4. Wait for your number transfer to Giffgaff to complete

        That's it you've done the hard work, now sit back and relax. Giffgaff will notify Talkmobile of your intention to leave and take your mobile number to Giffgaff.

        The number transfer process will usually take 1 to 2 working days. After this time your Talkmobile mobile number will be working on the Giffgaff SIM card.

        Leaving Talkmobile? You can also compare Talkmobile alternatives.

        New to Giffgaff? Read our Giffgaff deals page.

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