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Keep your mobile number

Keep your mobile number

If you're new to O2, or changing your O2 contract, it's easy to keep your mobile number.

Take a look below to find out what you need to do.

Requesting a switch

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. Let us have your PAC code when you place your order.

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 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, by calling us on 202, free from your O2 phone, or on 0344 809 0202, or by going into one of our shops. PAC codes are only valid for 30 days, but if yours expires, don’t worry – you can always request a new one.

Make sure you save the contacts on your sim before the switch. If you need help saving or restoring contacts from a sim, you can book an appointment with an O2 Guru.

On the day of the switch

You'll need to be in the UK when your number switches.

On the day of the switch, your current sim will lose signal. When this happens, put your new O2 sim in your phone. If you don't have an O2 signal, switch your phone off and on every couple of hours until you get a signal. If you still don't have signal by 6pm, contact us.

Texts and picture messaging can take up to 24 hours to work after the switch.

Moving from Pay As You Go to Pay Monthly

Just fill in the keep my number form. You'll need your temporary Pay Monthly number from your O2 confirmation email or sim pack. We’ll transfer your number 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.

On the day of the switch, your Pay As You Go sim will lose signal. When this happens, put your Pay Monthly sim in your phone. If you don't have signal, switch your phone off and on every couple of hours until you get a signal. If you still don't have signal by 6pm, contact us.

Texts and picture messaging can take up to 24 hours to work after the switch.

If your Pay As You Go balance is under £350, it will be transferred to your Pay Monthly account when you receive your second bill. If you're entitled to a loyalty bonus, up to £550, we'll add credit to your fourth bill.

Moving from Pay Monthly to Pay As You Go

Get in touch with our Pay Monthly customer service team. We'll do the rest.

If you're on O2 Refresh you can only move to Pay As You Go once your Device Plan is paid. If you're not on O2 Refresh but still in your contract minimum term, you may need to pay a termination charge.

14 days after you move to Pay As You Go you will receive your final Pay Monthly bill. Any outstanding balance will need to be settled.

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

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