How to Switch to Giffgaff and Keep Your Number
If you want to switch to Giffgaff, keep number porting in mind as a quick and legally protected right. Bringing your existing phone number to a new network in 2026 is easier than ever. To change to Giffgaff, keep number transfers simple by following three primary phases: obtaining a PAC code, activating the new SIM, and requesting the number port.
Step 1: Request a PAC Code From Your Current Provider
Before you can move your phone line, you need a Porting Authorisation Code (PAC). A PAC is a unique code generated by your current mobile provider that gives your new network the permission to take over your phone number. To get your giffgaff pac code ready, you can use the universal UK method.Simply text the word "PAC" to 65075 from your current mobile phone. Your existing provider will reply with your code. This code is typically valid for 30 days, which gives you plenty of time to order and set up your new Giffgaff account without rushing.Step 2: Order and Activate Your Giffgaff SIM Card
Next, you need to get your hands on a Giffgaff SIM. You can order a free SIM card directly from their website, or you can buy one for a small fee at your local supermarket. Once your SIM arrives, you must activate it online.During the activation process, you will need to choose a plan, known as a goodybag, or simply add pay-as-you-go credit to the account. It is crucial to remember that you will temporarily be assigned a random Giffgaff phone number at this stage. Do not worry, as this is completely normal. This temporary number will be replaced by your original phone number as soon as the official giffgaff number transfer is complete.Step 3: Submit Your PAC Code to Giffgaff
Now that your account is active, you can officially complete the request to switch to Giffgaff, keep number, and finalize the transfer. You will do this by submitting the PAC code you received in step one.- Log into your Giffgaff account on their website or mobile app.
- Navigate to your account settings.
- Select the option labeled Bring your number to Giffgaff.
Changing From O2 to Giffgaff
When you change from O2 to Giffgaff, keep number portability rules exactly the same as any other network. Because Giffgaff runs on the O2 network, the hardware transition is completely seamless. If your mobile phone is currently locked to O2, it will automatically work with a new Giffgaff SIM card without needing to be unlocked first.However, it is important to clarify that despite both providers sharing the same network infrastructure, you still need to request a PAC code from O2. This code is the only way to officially move your phone number and billing account over to Giffgaff.Frequently Asked Questions
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