
We're committed to ensuring you experience the smoothest possible switching journey from the moment you request your PAC/STAC code or Switching Information until the successful completion of your switch. What happens if it takes longer to switch? If you’ve already given O2 your PAC but receive a notification advising this has expired or been used, you’ll need to contact the network you want to leave and request a new one. Your PAC code should have been sent by text, however if you lose your PAC code you can contact your current network provider for it. PAC codes are only valid for 30 days, but if yours expires, don’t worry – you can always request a new one. You’ll also need to be in the UK on the day your number is set to switch over. If you provide your PAC code at the weekend, you’ll switch on the following Tuesday. If we receive your code after 5pm, you’ll switch within two working days. 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).

Or call us on 202, free from your O2 phone, on 03 from any other phone, or visit an O2 store.You can give us your PAC code online: Switch your number to O2.You can give us your PAC code when you order your new O2 connection or at any time afterwards.
