When to use this form

Use this form to transfer your current mobile number to your new O2 connection if you're:

  • Joining O2 Pay Monthly or Pay As You Go from another network
  • Moving from O2 Pay As You Go to O2 Pay Monthly.

Don't use this form if you're:

About You

Enter your contact details below, so we can keep you updated about your number transfer.

First name
Last name
Email address
Contact mobile number

The number you want to keep

Tell us about the number you want to transfer

I'm joining O2 from another network
I'm switching from O2 Pay As You Go to O2 Pay Monthly
Number to be transferred
Your PAC

To transfer your number, you'll need to ask your old network for a PAC (Porting Authorisation Code). You can get your PAC by texting 'PAC' to 65075 from the number you want to keep - you should get it in a minute or two. Alternatively, you can contact your old network to get your PAC.

A PAC is normally nine characters long, in the format 'ABC123456'.

Your PAC

The number you want to change

When transferring your number to O2, we'll give you a temporary number to begin with, which we'll replace with the number you want to keep.

Please enter this temporary number below.

This number is on a Pay Monthly plan
This number is Pay As You Go
Number to change
Security check

We just need to check it's you. Please enter the last two digits of your bank's sort code. This needs to be the account you're using to pay your O2 bills. Your sort code usually appears on your debit card or bank statements in the format '00-00-00'.

Changed your mind?

If you've changed your mind about transferring your number, get in touch with us and we'll be happy to help.

Give us a call

If you'd like to chat, give us a call on 202, free from your O2 phone, or 0344 809 0202 from a non-O2 phone. 

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