Whether you're joining giffgaff or leaving for another network, it's a straightforward process to keep your existing phone number.

giffgaff PAC CodeIf you're leaving giffgaff to join another network, or if you're leaving another network in order to join giffgaff, it's super easy to keep your current phone number.

All you'll need to do is to request a PAC Code. It's totally free and the entire process of transferring your phone number should normally take no longer than one working day.

For detailed instructions, please choose the option that best applies to you:

Leaving giffgaff For Another Network

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If you're leaving giffgaff to join another mobile network, you can take your phone number with you using a PAC Code from giffgaff.

There are three ways to request a giffgaff PAC Code:

  1. Online: You can get a PAC Code from giffgaff by logging in to the My giffgaff website. Once you've logged in, go to My profiles & settings > Get a giffgaff PAC Code.
  2. By Text Message: You can get a giffgaff PAC Code sent to you via SMS text message. Text PAC to 65075 to receive a PAC Code from giffgaff.
  3. By Phone: You can get a PAC Code by calling giffgaff. To do so, call them free of charge on their dedicated number, 43431.

It's always free to get a PAC Code from giffgaff, and it's your legal entitlement to be able to recieve one. If any cancellation fees apply to your giffgaff contract, they should also tell you what this will be at the same time as sending you a PAC Code.

The PAC Code you recieve from giffgaff should begin with GGF and should be 9 digits long (e.g. GGF 123 456).

Once you have your giffgaff PAC Code, you'll need to provide it to your new mobile network operator. For detailed instructions, please select your new mobile network from the following dropdown menu:

PAC Code Finder: How to use your giffgaff PAC Code

Your new mobile network:

Don’t want to keep your giffgaff phone number? You can request a STAC Code from giffgaff instead.

giffgaff STAC Code (Leave giffgaff Without Keeping Your Number)

If you’d like to leave giffgaff without keeping your current phone number, you’ll need to request a giffgaff STAC Code rather than a PAC Code. There are three ways to get a STAC Code from giffgaff:

  1. Online: You can get a STAC Code from giffgaff by logging in to the My giffgaff website. After logging in, go to My profiles & settings > Get a giffgaff PAC Code.
  2. By Text Message: You can get a giffgaff STAC Code sent to you via SMS text message. Text STAC to 75075 to receive a STAC Code from giffgaff.
  3. By Phone: You can get a STAC Code by calling giffgaff. To do so, call them free of charge on their dedicated number, 43431.

Once you’ve gotten your STAC Code, the rest of the process for joining your new mobile network remains the same. You can choose your new provider from the dropdown menu above for instructions on how to use your giffgaff STAC Code.

Joining giffgaff From Another Network

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If you're joining giffgaff from a different mobile network, you should ask your old mobile network to provide you with a PAC Code. The PAC Code will allow you to transfer your phone number to giffgaff.

After getting a PAC Code from your old network, you should order your new phone or SIM card directly from giffgaff's website. For more information, please select the type of tariff you're wanting to move to:

For a full list of the latest giffgaff deals, please see this page on giffgaff's website.

Get the Latest Deals from giffgaff →

When Your New Phone Arrives...

Once your new phone or SIM card arrives from giffgaff, switch it on and make sure everything's working correctly. If, for whatever reason, you need to return or change your handset or SIM card, it's best to do this before transferring your phone number.

Once you're happy to continue with the transfer, your PAC Code should be submitted through giffgaff's online form.

Providing your PAC Code to giffgaff
The PAC Code should be submitted through a form on giffgaff's website.

If your PAC Code is provided before 3pm, your phone number transfer will normally be scheduled for the next working day (Monday to Friday only, excluding English bank holidays). For PAC Codes submitted after the 3pm cut-off, you'll need to wait one extra working day for your number to be transferred.

Sometimes, you’ll be given the option to provide a PAC Code at the same time as when you order your new phone or SIM card. We’d typically recommend against providing your PAC Code at this stage. Instead, waiting for the new phone or SIM card to arrive from giffgaff first will allow you to make sure it’s working correctly and will make the process of cancelling or returning much easier.

Upgrading Your Plan On giffgaff

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giffgaff

If you're simply upgrading to a newer handset or tariff, it's not necessary to get a giffgaff PAC Code. You can simply upgrade via giffgaff's website. For more information, please select the type of giffgaff price plan you're planning to move to:

More Information

For more information, please see the giffgaff website. You can also read our full guide to using a PAC Code. This answers a lot of frequently asked questions and provides some additional tips on transferring your phone number.

For discussion, please see the comments below on this page. They show other people's experiences using a giffgaff PAC Code or moving their phone number from another network to giffgaff.

Your Comments 1,757 so far

We would love to hear your comments: either about using a giffgaff PAC Code or transferring your phone number from another network to giffgaff. The comments below are all from people who've done the same thing in the past. You can contribute by adding your own comments here.

To see all 1757 comments about transferring a phone number, please see the main PAC Codes article.

  • hey Ken, very helpful. I had no idea you could just text lycamobile and get your PAC code immediately. It came.

    If I did the process again I’d make sure I registered my Giffgaff SIM card 2 working days BEFORE the end of my monthly allowance.

    Silly me. I registered my Giffgaff SIM card the evening before my 30 day allowance is up. It’s not terrible ….but tomorrow I will not have my Lycamobile allowance (so can’t use my Lyca easily without topping up) and don’t want to use my GiffGaff number yet because in calling people I’ll confuse them with my strange number because the number won’t have been ported for another 2 days. Ah well. You live and learn! 🙂 No big deal.

    Andrew Smith transferred a phone number from Lycamobile to giffgaff.

  • I’ve got my PAC No from Vectone. I’m moving to GiffGaff – who seem good. The instructions say to check the GiffGaff SIM works. What does this mean ? Do I register the GiffGaff SIM & put money on it then put the SIM in my phone and see if I can phone out & receive calls ? Then change back to my Vectone SIM. Tell GiffGaff my PAC No. Wait till the Vectone SIM doesn’t work. Then put the GiffGaff SIM into the phone and the Vectone phone No will have transferred to GiffGaff & away I go.
    So 1. What exactly do I do to check the GiffGaff SIM works ?
    2. On the day of the transfer do I keep the Vectone SIM in the phone till the transfer to GiffGaff has completed and then swap the GiffGaff SIM in ? Thanks (it’s a while since I’ve done this!!!)

    Sally transferred a phone number from Vectone Mobile to giffgaff.

    • Hi Sally,
      Many thanks for your question. Yes, I’d put the giffgaff SIM card in your mobile phone and just make sure everything works correctly (e.g. that your mobile phone accepts the SIM card, that you’re able to get coverage where you live and make outgoing phone calls, etc). Once you’ve done that, you can give your PAC Code to giffgaff and move your phone number over (strictly speaking, it isn’t necessary to make sure your giffgaff SIM card actually works but I’d always recommend doing this whenever possible to avoid potential problems at a later date e.g. sometimes people forget to unlock their mobile phone, and are then left without a working SIM card until that problem is resolved).
      With regards to 2, yes, I would leave your Vectone Mobile SIM card in until the coverage disappears. You can then switch it for your giffgaff SIM card which will then have your phone number transferred to it.
      Hope this helps,
      Ken

  • Wendy Jones said:

    Hi,

    Having bought a new phone and decided to change network, I thought I had successfully ported my number from Virgin on a 30 day rolling contract to Giffgaff. The new phone is working well on the Giffgaff network with my old number. The old phone, however, is still allowing me to use Facebook and other apps such as Google Maps. Phone calls, texting and WhatsApp don’t work. I am confused about this as I thought that once my number ported over, everything would stop working on my old phone. Do I still have internet access for the rest of the 30 day contract that I had with Virgin? Has my contract with Virgin definitely been cancelled? Any help gratefully appreciated.

    Wendy Jones transferred a phone number from Virgin Mobile to giffgaff.

    • Hi Wendy,
      Many thanks for getting in touch! Is your old phone (previously on Virgin Mobile) connected to wi-fi? Your old handset will still function fine and will allow you to access the internet over wi-fi without a functioning SIM card inside it (hence, the ability to use apps such as Facebook, etc). Of course, phone calls and text messages rely on you having a functioning SIM card so that’s why they’re no longer working after you transferred your phone number out. WhatsApp is a little bit of a special case – technically speaking, it doesn’t require you to have an active SIM card and works fine over wi-fi, but each phone number can only be registered to one phone (so it would have been deactivated on your old phone, when you set up and registered your number on your new phone).
      Hope this helps,
      Ken

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