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Existing phone number

Level 1: Joiner
  • 2 Posts
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Hello,  I am a new customer to O2 and have put my new sim in today, I am just wondering when my existing telephone number will port over. I did supply a pac code.

Message 1 of 4

Level 94: Supreme
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You'll need to call customer service.

This always has to be chased up.
Numbers here Guide: Coronavirus Community Help and Support 
When it comes to the reason you are calling stay silent for 15 seconds and you will be taken to the keypad options.
Press 2 for Everything Else
Press 5 for More Options
Press 7 for Anything Else which will put you though to someone.
Say "Upgrade", "Lost/Stolen" or "Fraud" if you have to, to get put through to someone.
8.00am is the best time to call if you can.

I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone 8+ (EE)
Message 2 of 4

Level 94: Supreme
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Hi @Davidson 

Nothing will happen over the weekend unfortunately. More info here



Before we can transfer your number, we'll need your PAC code. This is made up of three letters and six numbers. You can get this from your current provider and it will be valid for 30 days. 

You can give us your PAC code when you order your new O2 connection or at any time afterwards. Once you’ve given us your PAC code you’ll switch to our network within one working day (Monday-Friday, 9am-5pm, excluding bank holidays). If we receive your code after 5pm, you’ll switch within two working days. If you provide your PAC code at the weekend, you’ll switch on the following Tuesday.

If you want to switch to O2 at a later date, just contact us with your PAC code when you’re ready to switch.

You can give us your PAC code online.Or call us on 202 free from your O2 phone, on 0344 809 0202 from any other phone, or visit an O2 store. PAC codes are only valid for 30 days, but if yours expires, don’t worry – you can always request a new one.


So it will probably happen on Tuesday. Keep rebooting your phone after the weekend. 


Veritas Numquam Perit

Girl in a jacket
Message 3 of 4

Former Staff
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Hi there @Davidson has your issue been resolved by now?

COVID-19 support - Help and support from O2 during the lockdown
Access for You: Registration - Find out how to register for our Access for You service.
Just joined the community or thinking of registering? Check out this handy starter guide!
Have a query about your account? login to My O2 for help

If you'd like to take part, why not register? slight_smile

Message 4 of 4