1) Check you’re eligible to switch from O2
If you’re out of contract, you can switch whenever you like for no charge. To check if you’re out of contract, you can:
Open your O2 app on your phone. Once it’s open, head to ‘Allowances’ and then select ‘Tariff’ to see your end date.
Or visit the O2 account webpage. Then click ‘See if you can upgrade today’ and log in to see your contract end date.
Prefer to call? You can get in touch with O2's customer support team by calling 202 on your O2 phone. Or on 034 4809 0202 from any other phone (standard network charges apply).
Opening hours are 8am-8pm Monday-Friday. 8am-6pm on Sundays.
In the event that you’re keeping your existing phone and signing up for a new SIM only deal, you may need to unlock your O2 phone. Only when it’s unlocked will it accept the new SIM card.
To unlock it, though, you’ll need what’s called a personal unlocking key (PUK). The good news is that you can obtain easily by logging in to your O2 account. Once you’ve got the PUK, which you’ll receive as a text message, you can use it to unlock your phone.
And if you’re interested in switching but want a bit more information first, text INFO to 85075.
2) Contact O2 to get your PAC code
Once you’ve signed up for the deal you’ve chosen, just text PAC to 65075 to get your PAC code. It’s this short, alphanumeric code that will enable you to transfer your existing phone number to the network you want to join.
If you'd prefer to speak to somebody, just ring O2 on one of the numbers in step 1 and tell them you want to leave. They’ll give you a contract end date that you should make a note of.
While you’re on the phone to them, you also need to ask for your PAC Code.
O2 is bound by law to provide a PAC Code within two hours of you asking for it.
3) Find and buy a deal from Sky Mobile
Cleared to switch? Smashing news. Your next task is to select a deal from Sky Mobile and sign up for it through uSwitch.
Sky Mobile will then carry out some credit checks, after which point you’ll be sent your phone or SIM in the post.
4) Contact Sky Mobile to give them your PAC Code
Got your PAC Code to hand? Okay, your next task is to ring Sky Mobile and give it to them.
The number to call is 03300 412 524 (standard network charges apply). The Sky Mobile call centre is open 8.30am-11pm every day.
5) Insert your Sky Mobile SIM
It’s zero hour. If you got a new phone, it's time to take your pin-key and unlock the handset's SIM tray. Then insert your Sky Mobile SIM.
If you bought a SIM only deal, you can just put the Sky Mobile SIM in your existing phone.
Your number won’t be transferred straightaway. But while the transfer is underway, you’ll be given a temporary number. So you’ll still be able to use your phone.
6) Wait for your number to be transferred to Sky Mobile
Number transfers are usually complete the next working day. But the time it takes depends on the network and whether weekends get in the way. In which case it may take a little bit longer.
Once it's done, you're good to go.