Porting your mobile number from BT Broadband to Post Office Broadband

Leaving BT Broadband

How to switch from BT Broadband and transfer my number to Post Office Broadband

If you wish to use the 'text-to-switch' service, simply SMS text PAC to 65075 free from your BT Broadband SIM to get your PAC code by text and begin the porting process.

  • BT Broadband will provide your Porting Authorisation Code (PAC) either over the phone, by SMS text message or via email.
  • A PAC code is valid for 30 days. If you don't use it within thirty days it will expire and you will need to request a new one.
  • Your BT Broadband account will remain active until your number has been ported over to the new network. After the transfer is complete, your BT Broadband account will be automatically closed.

Many of the exclusive mobile phone deals are only available online, directly from the network providers listed here. While you wait for your Port Authorization Code from BT Broadband, get the best Post Office Broadband offer tailored to you.

Finally, provide your PAC code to your new Post Office Broadband mobile network operator who will then be able to port your existing phone number from BT Broadband. They will tell you what day the transfer is due to take place (usually within 48 hours).

Important: Do NOT cancel your contract before switching, otherwise you may lose your existing phone number and be unable to port it over. Once you provide your new network provider with your PAC code, your old account will be clsoed automatically once the number is successfully ported over.

Note: Credit on Pre-Pay / PAYG (Pay-As-You-Go) accounts cannot be transferred over and so any remaining credit balance will be lost after the switch is complete. If you have any credit left, one good option is to donate it to a charity before porting your number.

Joining Post Office Broadband

How to switch to Post Office Broadband and keep my BT Broadband number?

The first step is to sign up with Post Office Broadband to get your new SIM card.

Once you have done that, ensure you have the following information ready:

  • Your original mobile phone number you want to keep.
  • The Porting Authorisation Code (PAC) from your previous BT Broadband network.
  • The expiry date of the PAC number (valid for 30 days from the date of issue).
  • The temporary mobile number from your new Post Office Broadband sim card.
  • You may also need the new SIM card number found on the back.

Note: You may lose network service for a short period on the day of transfer. If this happens, turn your phone off and on occasionally, until you see the Post Office Broadband signal on your mobile phone screen. This will indicate that the transfer is complete, and you can now use your existing phone number in your new mobile network provider.

Visit Post Office Broadband online for more information and their latest offers on mobile phone deals.

Compare Post Office Broadband vs BT Broadband

About Post Office Broadband

Unlimited broadband including line rental at 11Mbp/sec average speed for £30 £15.90 a month.

Unlimited Fibre broadband including line rental at 36Mbp/sec average speed for £37 £22.90 a month.

Unlimited Fibre Plus broadband including line rental at 67Mbp/sec average speed for £42 £28.90 a month.

About BT Broadband

Unlimited Superfast Fibre BT broadband (average speed 50Mb) including line rental and £80 Gift Card for £29.99 a month.

Unlimited Superfast Fibre 2 BT broadband (average speed 67Mb) including line rental and £120 Gift Card for £39.99 a month.

Unlimited Ultrafast Fibre Plus BT broadband (speed guarantee of at least 100Mb) including line rental and £135 Gift Card for £54.99 a month.