How do I keep my number when leaving O2?

<< How to switch networks

The text-to-switch initiative (launched by Ofcom in July 2019) enables users to request their Porting Authorisation Code (PAC) or Service Termination Authorisation Code (STAC) with one simple text message. This means that switching should now be comparatively quicker and easier than before.

If you are unable to use text-to-switch because you have more than one number on your account or an extra piece of kit (eg. a tablet or Apple watch) on a pay-as-you-go, you may need to log onto your online account or call your provider. Wherever possible, we advise using text-to-switch, or requesting your code online, to help safeguard against robust retention techniques.


  • Text: text PAC* to 65075
  • Website: Log onto the My O2 website and navigate to My details > Thinking of switching from O2?.
  • Phone: Call 202 from your O2 phone (or 0344 8090202 from any other phone) and request your PAC*.

*If you don’t want to keep your number, you can follow the above steps replacing PAC with STAC and texting 75075.

We're sorry but your browser is out-of-date!

Please update your browser to view this website correctly. Update my browser now

See you soon,

The Billmonitor team