How to Change or Transfer Your Giffgaff Number (2026 Guide)

How to Transfer Your Giffgaff Number to a New SIM or Phone

To transfer your Giffgaff number to a new phone or a new SIM card, you need to complete a process called a SIM swap. If you are staying with Giffgaff but upgrading your device or replacing a lost or damaged SIM, you do not need to switch networks. You only need to link your existing number to your new blank SIM card. This process allows you to transfer a Giffgaff number to a new phone, transfer a Giffgaff number to a new SIM, or transfer a Giffgaff number to a new Giffgaff SIM entirely within your account settings.

Here is how to complete a SIM swap in 2026:

• Log in to your account dashboard on the website or mobile app.

• Navigate to your profile and settings section.

• Select the option to replace your SIM or perform a SIM swap.

• Enter the activation code printed on your new, unactivated SIM card.

• Confirm the swap. Your number, credit, and active plans will move to the new SIM card within a few hours.

How to Transfer Your Giffgaff Number to Another Network

To transfer your Giffgaff number to another network, you must request a Porting Authorisation Code (PAC). A PAC code is a short alphanumeric sequence that tells your new mobile provider you want to keep your current phone number. In the UK, the standard text-to-switch process makes this incredibly simple.

To get your code, text the word PAC to 65075 from your current phone. You will receive a quick reply containing your PAC code, which remains valid for 30 days. Once you have this code, you simply provide it to your new network provider to initiate the switch.

Transferring to Major UK Networks (EE, Vodafone, O2, Three)

If you are looking at how to transfer a Giffgaff number to EE, Vodafone, O2, or Three, the steps are nearly identical across all major providers. You will generally enter your PAC code in the following ways:

• During the online checkout process when you order your new plan.

• Via the network's specific online porting form after your new SIM arrives.

• By texting the new network once your new SIM is active.

Note that even though your current service runs on the O2 network infrastructure, moving your number to O2 directly operates exactly the same way. You must still request a PAC code to move your number over.

Transferring to MVNOs (Lebara, Voxi, Lyca)

Transferring to virtual networks follows the exact same PAC code procedure. Whether you want to transfer a Giffgaff number to Lebara, Voxi, or Lyca, you just need your PAC code from the 65075 text service. As a helpful tip, make sure your new SIM is activated and inserted into your phone before you submit the PAC code on the Lebara, Voxi, or Lyca website. This ensures a smooth transition and helps prevent any delays in moving your number.

Frequently Asked Questions (FAQ)

How long does it take to transfer a Giffgaff number?

In 2026, UK number transfers usually complete within one working day. To guarantee a next-day transfer, you must submit your PAC code to your new network before their daily cutoff time, which is usually 5 PM on a weekday.

Can I transfer my Giffgaff number if I have no credit?

Yes, you can request a PAC code and transfer your number even if your account has zero credit or your monthly plan has expired. The text to 65075 is completely free.

Do I need a PAC code to transfer my number to a new Giffgaff SIM?

No. If you are staying with your current network and just changing your SIM card, you do not need a PAC code. You only need to do a SIM swap in your account settings.