Whether you're joining O2 or leaving for a different network, it's a straightforward process to keep your old phone number.
If you're leaving O2 and joining another network or if you're leaving another network in order to join O2, it's easy to keep your old phone number. All you 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:
- I'm leaving O2 and joining another network
Transfer your O2 phone number onto a different network.
- I'm joining O2 from another network
Transfer your phone number onto a new account with O2.
- I'm upgrading my O2 phone or SIM card
Transfer your phone number from one O2 account to another O2 account.
Leaving O2 For Another Network
If you're leaving O2 and joining another network, you can take your phone number with you.
Start by asking O2 to issue you with a PAC Code.
If you're a Pay Monthly customer on O2, you can request a PAC Code by calling 202 on your O2 handset. Alternatively, dial 0344 8090202 from any other phone.
Alternatively, if you're a Pay As You Go customer on O2, request a PAC Code by calling 4445 on your O2 Pay As You Go handset. You can also call 0344 8090222 from any other phone.
You can request a PAC Code over the phone at any time during O2's opening hours:
|Monday - Friday||8.00am - 9.00pm|
|Saturday||8.00am - 8.00pm|
|Sunday||8.00am - 6.00pm|
It's always free to get a PAC Code from O2 (it's your legal entitlement). After getting your O2 PAC Code, you'll need to provide it to your new network operator. For detailed instructions, please select your new network operator from the dropdown menu below:
Joining O2 From Another Network
If you're joining O2 from another network, you should ask your old network to provide you with a PAC Code. The PAC Code will allow you to transfer your number to O2.
After getting the PAC Code, you should order your new handset or SIM card directly from O2's website. For more information, please select the type of tariff you're wanting to move to:
For a full list of the latest O2 deals, please see this page on O2's website.
Once Your New Phone Arrives...
Once your new phone or SIM card arrives from O2, turn it on and make sure everything's working properly. If you need to return or change the new handset/SIM card, please do this before you transfer your phone number.
Once you're happy to continue with the transfer, your PAC Code should be entered on O2's online form. Alternatively, you can also provide your PAC Code to O2 over the phone:
If you're joining O2 Pay Monthly, you can submit your PAC Code by calling 202 on your O2 handset. Alternatively, call 0344 8090202 from any other phone.
If you're joining O2 Pay As You Go, submit your PAC Code by calling 4445 (0344 8090222 if you're calling from another network).
Once you've provided your PAC code to O2, your phone number transfer will normally be scheduled for the next working day (Monday to Friday only, excluding English bank holidays).
Upgrading Your Plan On O2
If you're simply upgrading to a newer handset or tariff, it's not necessary to use an O2 PAC Code. You can simply upgrade via O2's website. For more information, please select the type of tariff you're planning to move to:
For discussion, please see the comments on this page. They show other people's experiences either when using an O2 PAC Code or when transferring their phone number from another network to O2.