Transfer your number and switch networks with a PAC code

Transferring your current mobile phone number to a new network is free, easy and takes no more than 1 to 2 days.

You simply need to request a free PAC code from your current network, and hand the PAC code to the new network that you wish to switch to.

Ofcom rules means requesting a PAC code couldn't be easier. You can simply text PAC to 65075 from your current network to request a PAC code, with a reply within 30 seconds.

Once you have your PAC code, you need to hand it to the new network that you wish to switch to. This is often done online via a form on your new network's website. Alternatively, you can call your new network to hand your PAC code over.

Transferring your number should take no more than 1 to 2 working days.

Before you begin the transfer, you must be aware of any issues you may run into, and ensure you are eligible to transfer if you are on an existing contract with months remaining.

It’s also a good idea to check the coverage where you live before switching to a new network, to ensure you will receive a good service and signal.

What is a PAC code?

A PAC code (Porting Authorisation Code) is a short code which you will need to transfer your mobile phone number to a new network.

The easiest way to get a PAC code is to text PAC to 65075 from the number you wish to keep.

Once you have your PAC code, you should give the code to your new network to begin the transfer process.

Requesting a PAC code will always be free.

A PAC code will expire after 30 days. If you haven’t used your PAC code after 30 days, but you still wish to transfer, you will need to request another PAC code. There are no limits on the amount of times you can request a PAC code.

How to transfer your mobile phone number

Transferring your number to a new network is a hassle free process, and should take no more than 2 working days.

You need to request a PAC code from your existing network and give the code to your new network.

1. Request your PAC code

There are 2 ways to request a PAC code.

Previously, you had to call your network if you required a PAC code. However, recent Ofcom regulations have made this process much easier, by requiring all networks to provide a PAC code within 30 seconds of sending a text message.

The easiest way to request a PAC code is to text PAC to 65075. You will receive a reply within 30 seconds, which will include your PAC code. It is important to send this text from the number you wish to keep.

If you prefer, you can ring your existing network and ask them for a PAC code. You may be required to provide proof of ID if you ask for a PAC code over the phone.

Once you have your PAC code, it will be valid for 30 days. If you haven't used your PAC code after 30 days, but you still wish to transfer your number, you will need to request another PAC code.

2. Give your PAC code to your new network

Once you have your PAC code, you must give it to your new network within 30 days.

The easiest way to do this is online. You will need to create an online account with your new network. Once you have created an account and logged in, there should be a link to transfer your number and input your PAC code.

Alternatively, you can call your network and tell them you wish to transfer your number to them. They will ask for your PAC code.

3. Transfer day

Once you have provided your new network with your PAC code, the transfer of your number should take 1 to 2 working days.

In the meantime, keep using your old SIM card so your phone still works.

On the day of the transfer, you will lose signal. When this happens, you should remove your old SIM card and insert your new SIM card. Once you have inserted your new SIM card, it may take up to an hour before you receive a signal.

Your number will be successfully transferred once you receive a signal with your new SIM card.

How can I find the best contract deals when transferring to a new network?

You can find the best phone deals and best SIM only deals by using our comparison tools, including the latest Samsung Galaxy S24 and Apple iPhone 16.

Why should I transfer my number to a new network?

There are many reasons why you would want to move to a new network.

1. Bad coverage with your current network
2. Your current network is too expensive compared to other networks
3. You’ve found a better contract deal elsewhere
4. You frequently go over your data allowance

When transferring to a new network, you most likely will want to keep your existing number. Getting a new number can be extremely cumbersome, as you will have to inform all your contacts of your new number. Therefore, it makes sense that you will want to keep your old number when moving to a new network.

If you’re still deciding on a new network, you can find the cheapest mobile phone deals and SIM Only deals by using our comparison tools.

Can I transfer my number if I’m currently on a contract?

You can choose to transfer your number and move to a new network at any time, regardless of whether you are on a contract or not.

However, if you are currently on a contract, you should be aware that you must still fulfil your monthly payments for the whole length of your contract, even if you move to a new network. Most networks will charge a termination fee, which will be the remaining amount on your contract. Make sure to contact your current network and ask for their policy on this, as if can differ between networks.

If you’ve fulfilled your contract, and you haven't renewed since, you can transfer your number to a new network at any time, without termination fees.

If you’re on a rolling 1 month / 30 day SIM Only contract, you can transfer and cancel your contract at any time without termination fees.

If you’re unsure if your contract has finished or you you think you may have to pay a termination fee, you should contact your network for a definitive answer. You should also refer to the terms and conditions when you signed your contract. You can also check your contract status by texting INFO to ** 85075**.

How long will it take to transfer my mobile phone number to a new network?

In most cases, it takes no more than 2 working days to transfer your existing mobile phone number to a new network. However, if you request your transfer after working hours, it may take an extra day for the transfer to complete.

The process is simple and completely automatic. If there are any issues, you will be contacted by your network. Problems may occur if the PAC code you have provided is invalid or has expired.

Will I lose signal when I transfer my number?

On the day of the transfer, you will momentarily lose signal once the transfer has completed. You must insert your new SIM card once this happens:

1. Turn of your phone
2. Remove your existing SIM card
3. Insert your new SIM card
4. Turn on your phone and wait until you have a signal
5. Get someone to give you a test call to ensure your number has successful transferred to your new network

Occasionally, it may take a couple of hours before you regain signal with your new network. This is completely normal and will eventually resolve itself. If it takes any longer, try rebooting your phone. If you’re still having issues after a few hours, contact your new network for advice.

When can I transfer my mobile phone number?

As long as you still have access to the number you wish to keep, you can transfer your mobile phone number to another network at any time.

If you're buying a new contract and you wish to transfer your number, you can do this at the time of purchase, or after you receive your new phone or SIM - it makes no difference when you choose to transfer your number.

Transfer your mobile phone number when buying online

If you are making a purchase online for a new phone, contract or SIM, some retailers and networks will give you the option to transfer your existing number to your new network at the checkout by asking for your PAC code.

You don't have to transfer your number at this point. You can wait until your receive your new phone or SIM before requesting a transfer.

The only benefit of transferring your number during the checkout stage it that it's slightly more convenient. Otherwise, it doesn't make any difference.

Transfer your mobile phone number when buying in store

If you are making a purchase for a SIM or phone from a dedicated phone shop, an assistant should be able to help you transfer your number at the time of purchase.

What happens to my old network once I have transferred my number?

Once your transfer has successfully completed, your old network will no longer be active and you should dispose and recycle your SIM card.

However, you should be aware of any early cancellation fees if you move before your contract is over.

If you were on pay as you go, you will lose all remaining credit. You may wish to donate your remaining credit to charity before transferring, which is a service that some charities offer by allowing you to send a premium rate text message.

What is a STAC code, and how is it different from a PAC code?

You should request a STAC code (Service Termination Authorisation Code) if you wish to switch to a new network without keeping your current number. Instead, you will receive a new mobile phone number.

On the other hand, you should request a PAC code if you wish to switch to a new network but keep your number.

By handing your STAC code to another network, your previous number and contract will be terminated.

To request a STAC code, text STAC to 75075.

Will my contract be cancelled when I transfer my number?

If your currently on a contract that is yet to expire, you can transfer your number, however you will have to pay a termination fee, which is usually the total of the remaining amount on your contract.

See our guide on cancelling your contract early from more information.

Can I transfer a deactivated mobile phone number to another network?

In most cases, a network will keep a deactivated number for 90 days, after which is may be recycled and used again.

If it's been less than 90 days since your number has been deactivated, you should contact your network. They may be able to give you a PAC code to regain your number.

Unfortunately, if it's been longer than 90 days, it's unlikely your number can be recovered.

Is it possible to cancel the transfer of a mobile phone number?

If you have given your PAC code to another network, it is not possible to cancel the transfer.

However, if you have requested a PAC code but not given it to another network, you do not need to do anything. Your PAC code will automatically expire after 30 days, and no transfer will take place. If you decide at a later date you wish to transfer again, you must request a new PAC code.

FAQs