How to keep your mobile number

Switching to a different mobile network? Whether you're getting a shiny new handset with your contract or going for a cheaper SIM only deal, it's always reassuring to know that you can keep your old number.

Ofcom's text-to-switch scheme makes it super-easy. And it's free. Just follow the step-by-step process below.

How to switch mobile providers and keep your number

Step #1: Get a PAC from your current network provider

First, you need to get a Porting Authorisation Code (PAC). This code consists of three letters followed by six numbers, and you'll need it to transfer your mobile number to a new network.

The quickest and easiest way to get it is to text 'PAC' to 65075 from your current SIM. Your provider should text your PAC back straight away, although it can take up to two hours.

Alternatively, you can use your network's app or website and log into your account. You should be able to request your PAC there. And if you want to go old-school, you might be able to call your network to get it.

See our table below for more information on getting a PAC code from different network providers without using text-to-switch.

Once you receive your PAC, you've got 30 days to use it.

Step #2: Give your new network the PAC

Next up, contact the network you're moving to and give them your PAC.

Once you share the code, they'll handle the switch and arrange the transfer of your number. They'll also sort out the cancellation with your old network, so you don't have to.

In most cases, your number will move across on the next working day after you pass on your PAC. Ofcom rules make it clear that networks have to complete the switch within one working day.

Before the switch, keep your old SIM in your phone and carry on using it as normal. Once the switch completes, you'll need to swap it for your new SIM, which should now have your old number on it.

Step #3: Check your new SIM and number

On switch day, pop your new SIM into your phone and give it a quick test.

Call or text a friend or ask them to give you a ring. If the call goes through and your old number shows up, you're all set.

If not, give it a bit more time or call your new network provider for an update. You might just need to restart your phone.

And that's it. Three simple steps and you've successfully moved over your number. Easy.

How to get your PAC code without texting

Not keen on using text-to-switch? No problem. You can still call your mobile provider and ask for your PAC the old-fashioned way.

Most networks offer a dedicated number if you call from your mobile, plus a separate number if you ring from a landline or another network. Many also offer online platforms if that's easier for you, too.

Just get in touch, ask for your PAC and they'll sort it for you.

Switching mobile network FAQs

Will I lose mobile service when switching?

You shouldn't lose service for long during the switch. Once you give your new network your PAC, your old number stays active, so you can still text, call and receive calls.

You might experience a brief moment without service during the transfer, just for a minute or so. But after that, you'll be all set with your new SIM.

Should I cancel my contract with the network I'm leaving?

Thanks to Ofcom's text-to-switch scheme, you don't have to call your old network to cancel. This means no awkward conversations where they try to convince you to stay.

Your new network will handle the cancellation once they get your PAC. They'll also line up the end date for your old service and the start date for the new one.

If you're thinking about sticking with your current network but want a better deal, find out how to haggle with your mobile provider. And if you're looking to break your contract early, here's what to do.

Can I transfer a disconnected mobile number?

Unfortunately, no. Once a number disconnects, you can't transfer it. So, don't cancel your contract before porting your number.

What do I do if I'm buying online?

If you're buying a new mobile or SIM only deal online, the process is still quite simple. Start by getting your PAC from your current network.

Then grab the best mobile deal for you and get your new phone or SIM after passing any credit checks. Once it arrives, follow the instructions to set it up with a temporary number.

Next, get in touch with your new network. Give them your temporary number, the one you want to keep, and your PAC, and they'll take it from there. The switch should happen quickly, probably on the next working day.

What if I don't want to keep my mobile number?

If you're not fussed about keeping your old number, text 'STAC' to 75075 instead of following the PAC process. This will give you a Service Termination Authorisation Code (STAC), which is valid for 30 days.

You'll have a month to think it over, but keep in mind: while you'll get a fresh number, you'll need to give all your regular contacts the heads up.

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