Maintaining Your Mobile Phone Number | Customer Service
You can provide us with your PAC code when ordering your new O2 connection or at any time thereafter.
- You can give us your PAC code online by changing your phone number to O2.
- Alternatively, you can call us at 202 (free from your O2 phone), 0344 809 0202 (from any other phone), or visit an O2 store.
After providing us with your PAC code, you will be switched to our network within one working day (Monday-Friday, 9 a.m.-5 p.m., excluding bank holidays). If we receive your code after 5 p.m., you will be switched within two business days. If you provide your PAC code over the weekend, you will be activated the following Tuesday. You must also be in the UK on the day your number is scheduled to change.
PAC codes are only valid for 30 days, but don't worry if yours expires; you can always request a new one.
Your PAC code should have been sent to you via text; however, if you have lost your PAC code, you can obtain it from your current network provider.
If you have already given O2 your PAC but receive a notification that it has expired or has been used, you must contact the network you wish to leave and request a new one.
We're sorry you're considering switching. If you'd like to discuss your options or learn about any special offers, please call us at 202, which is free from your O2 phone.
Remember, if you have O2 Refresh, including our custom plans, you can change your phone or tariff at any time.
Learn more about Leaving O2.
If you’d like to know whether there’d be anything to pay if you switched, or what your credit balance is if you’re on Pay As You Go, you can get an estimate of any charges or credit by calling on 202, signing in to My O2, or texting INFO to 85075
Early termination fees may apply depending on the type of plan you have. Learn more about how this might affect your contract at Leaving O2.
How can I obtain a PAC or STAC code?If you decide to switch networks, you must request a PAC code if you want to keep your phone number and a STAC code (Service Termination Authorisation Code) if you want a new number.
You can obtain your code by calling 202, logging into My O2, or:
- If you want to keep your phone number, text PAC to 65075 for free.
- If you don't want to keep your phone number, text STAC to 75075 for free.
Within 60 seconds, you should receive your PAC or STAC code.
You won't be able to use the text service if you have multiple numbers on your account or if you have an Apple Watch on a Pay Monthly plan. To obtain your PAC or STAC code, please log in to My O2 or call us. If you want to switch more than 24 numbers at once, we can assist you over the phone, or you can make multiple requests in My O2.
If you want a PAC code, you must be in the United Kingdom. It will be delivered to you in 60 seconds.
Your PAC code should be saved in your text messages, but if you lose it, you can get it from My O2 or by calling us.
If you're switching between networks, you can use the same PAC or STAC code on each.
We will send you a new sim card with a new phone number if you switch from Pay As You Go to Pay Monthly.
We can accommodate your request to keep your original phone number. You'll need your new Pay Monthly phone number, which you can find in your O2 confirmation email or sim pack.
- Fill out our online form to switch your number to Pay Monthly.
- Alternatively, you can call us at 202 (free from your O2 phone), 0344 809 0202 (from any other phone), or visit an O2 store.
We'll transfer your phone number within one business day (Monday-Friday, 9 a.m.-5 p.m., excluding holidays).
If we receive your code after 5 p.m., you will be switched within two business days.
What should I expect when the switch is flipped?Your Pay As You Go sim will lose signal on the day of the switch. When this occurs, insert your Pay Monthly sim card into your phone. If you don't have a signal, turn your phone off and on every couple of hours until you do. If you still don't have signal by 6 p.m., please contact us.
Text and picture messaging may not work for up to 24 hours after the switch.
What happens to the balance on my Pay As You Go card?If your Pay As You Go balance is less than £350, it will be transferred to your Pay Monthly account when your second bill arrives.
If you are eligible for a loyalty bonus of up to £550, we will credit your fourth bill.
If you want to switch from Pay Monthly to Pay As You Go, we can transfer your number and even set up your new Pay As You Go sim card.
Contact us by dialing 202 from your O2 phone or 0344 809 0202 from any other phone. We'll take care of the rest.
If you're on O2 Refresh, you can only switch to Pay As You Go after your Device Plan has been paid off.
If you're not on O2 Refresh but are still within your contract's minimum term, you may be required to pay a termination fee, which our Customer Service team can discuss with you.
You'll receive your final Pay Monthly bill 14 days after switching to Pay As You Go, and any outstanding balances must be settled.
If you are simply changing or replacing your sim and want to transfer your mobile number to your new sim, you can do so in My O2.
If you have an O2 Business account, please sign in to My O2 Business to swap your sim card.
If you haven't already received a replacement sim, you can do so by dialing 202, starting a webchat, or visiting an O2 store.
Sim swapping can take up to 24 hours.
When you lose signal with your original sim, turn off and then on your device. If you're using a plastic sim card, insert it into your device. Wait until your network appears on your device.
Thank you for providing feedback.
Support for Coping with the Passing of Your Feline CompanionLosing a beloved pet can bring about immense emotions of grief and uncertainty. When dealing with the passing of your feline friend, you may be unsure of what steps to take next. To assist you during this challenging time, we provide advice and
Opt for a Scientifically-Proven Learning MethodSome subjects can be mastered independently to attain an A or A* grade. Fortunately, Biology is one of them! There is a straightforward learning technique that can help you achieve this. We refer to it as the scribble technique, highlighted by an Amazon
Do you use your mobile phone to stay in touch with your loved ones, save cherished moments, and work from any location? Do you carry it around with you everywhere you go? Losing your phone or tablet can be a major setback for your personal and professional life. Fortunately, Samsung's range of
If you are concerned about cleaning and sanitizing your dog's wounds, Hibiscrub is a reliable disinfectant that can combat bacteria, viruses, and fungi. Although it is commonly used in medical facilities, you can also use it at home.In this blog post, we will discuss the benefits, side effects, and safe