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O2 PAC Code: Keep Your Number When Changing Networks
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.
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:
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:
PAC Code Finder: How to use your O2 PAC Code
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.
Get the Latest Deals from O2 →
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).
The PAC Code should be submitted through a form on O2's website.
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 more information, please see the O2 website. You can also read our full guide on using a PAC Code: there's frequently asked questions amongst other tips for transferring your phone number.
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.
We would love to hear your comments: either about using an O2 PAC Code or transferring your phone number from another network to O2. 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.
Claire said:
I requested the PAC from O2 and switching via the SKY site seemed relatively straight forward. I was mailed with a date the switch would take place which was 2 working days from completing the form, all as advised so far. On the day of the switch, my O2 phone stopped working however, whilst I can make calls from my new Sky phone with my old number that has been imported, I can't receive calls. When anyone calls my number, they receive a voice message saying the number is incorrect.
SKY customer service are telling me the issue is being looked at by their porting team. The porting team must be based on Mars as it seems the customer service agent isn't able to contact or talk to the porting team and find out what is going on. When I asked, I was told it was an issue at O2's side. I've contacted O2 and they can see the number was moved at 11am the previous day. I'm now getting really frustrated with Sky as it's been 48hrs and I'm still none the wiser what is happening.
Anyone else experienced a similar issue or know how to contact the porting team directly?
Any advise welcome, Sky aren't being very helpful. I'm just being told to expect a text when complete
Claire transferred a phone number from O2 to Sky Mobile.
Aimee said:
I requested my PAC code from EE and then filled out the necessary form for o2 to find out that EE had in fact, given me the WRONG PAC code, it wasn't even a qualifying code which I was not aware of.
Aimee transferred a phone number from EE to O2.
That sounds like poor form from EE. Did they give you a nine-digit code (three letters followed by six numbers), or was the code in a totally different format? Sometimes, they mistake it for a PUK code (Personal Unblocking Code) which serves a very different process from PAC Codes.
KATHRYN NORMAN said:
I have moved from ee to 02.applied to port my number on 9.3.19, I completed the required paperwork but so far my number has not been transferred to my 02 account. Very disappointed indeed.
KATHRYN NORMAN transferred a phone number from EE to O2.
Sorry to hear about the issues you've encountered moving a phone number from EE to O2. As per the timescales listed here, I would have expected the phone number transfer to have taken place on Tuesday as you submitted your PAC to O2 on a Saturday. If your phone number still hasn't transferred over, you should get in touch with your new network (O2) to enquire about it. It is their responsibility to process the phone number transfer for you.
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