If you’re joining or leaving a mobile provider, you’ll need to decide whether you want to keep your existing mobile number or get a new one.
Joining BT Mobile
When you’re joining BT Mobile, you can choose to keep your existing mobile number. This is also called porting. We can also provide you with a new number.
Keeping your mobile number
Keeping your existing mobile number and bringing it with you from another mobile supplier (sometimes called porting) is easy to do. You’ll need a porting authorisation code, or PAC for this.
- Text the word PAC to the number 65075. Your current provider will reply by text with your PAC.
- Give the PAC to us when you contact us to switch, and we’ll arrange for you to keep your existing number.
When you receive your PAC, the message will also include any important information about early contract termination charges, outstanding handset costs or pay-as-you-go credit balances.
Switching provider and getting a new mobile number
Changing your mobile number when you join BT Mobile from another provider is straight forward. You just need a service termination authorisation code, or STAC for this.
- Text the word STAC to the number 75075.
- Your current provider will reply by text with your STAC.
- Give the STAC to us when you switch, and we’ll provide you with a new number.
Getting a STAC means you don’t have to speak with your current provider if you just want to leave them.
When you receive your STAC, the message will also include any important information about early contract termination charges, outstanding handset costs or pay-as-you-go credit balances.
On the day you switch to BT
We’ll switch your service to BT on the port date we’ve agreed with you. It’s normal to experience a little disruption on the day, so you may wish to let your important contacts know that you could lose connection for a couple of hours.
However, if there’s a delay to the start of your new BT Mobile service or in porting your existing number to BT, you may be able to claim compensation. More about compensation
Leaving BT Mobile
If you want to leave us, we'll be sad to see you go. Please call us on 0800 800 152 to discuss your options.
To keep your number when leaving us to join another provider you’ll need a PAC. Please follow the instructions detailed above and give your PAC to your new provider.
To get a new number when leaving us to join another provider you’ll need a STAC. Please follow the instructions detailed above and give your STAC to your new provider.
For further information please read how to cancel a BT Business account.
Requesting a PAC or STAC on Mobile Manager
BT Mobile Manager is a free digital service we offer to help you manage your account and keep track of your phone usage and spending. Learn more about Mobile Manager or sign in to Mobile Manager.
If you've not used Mobile Manager before, you'll need to select Activate Account first and follow the onscreen instructions.
When you've signed in to Mobile Manager, simply follow these steps:
- In the left-hand menu, click Admin.
- Select Manage services.
- Check the box alongside any phone number you want to switch.
- Select PAC or STAC or INFO, then Update and then Yes.
- We'll respond within 2 working days. You'll see a Mail icon in Mobile Manager when your request is ready.
If you've requested a PAC or STAC, you have 30 days to give it to your new provider if you decide to leave BT.
If you have more than one number on one price plan, you may need to call us about switching.
Transfer a disconnected mobile number to a new provider
If your mobile number’s been disconnected, you’ll need to move quickly to transfer the number to a new provider. You can only transfer a mobile number up to 31 days after it was disconnected. If you don’t transfer a disconnected number before then, you won’t be able to use it again.
If we disconnected your BT Business mobile but you’d like to switch your number to a new provider, please call us for free on 0800 800152. We’re here to help Monday-Friday 08:00-18:00 (excluding bank holidays).
- We’ll review your account to make sure we can switch your number.
- If we can, we’ll text you a PAC free of charge for you to send to your new provider. We’ll ask you for the best contact number to send your PAC to.
- Make sure you give the PAC to your new provider within 31 days of disconnection.
- We won’t be able to reactivate any disconnected numbers.
Need a bit more help?
Check out our Mobile services page for more help, support, and how to contact our Mobile customer service teams.