You would need to do a ‘double port’ to achieve this. So basically get a PAC to port the number you want to keep to another network (any free PAYG like ASDA/Three). Once your number is ported wait until the next day and then request another PAC off the new network then give that to iD to transfer the number onto your new contract. You may be liable for early termination charges if you’re still in contract on the number you want to keep. Your original contract will be terminated as part of the number transfer. 

Hi @Dave shires 

Unfortunately, it isn't possible to move a number directly from one iD Mobile account to another iD Mobile account. We'd require a PAC code from another network to move a number to an account.

In this case, you may be able to try the following triangle port method;

1) Get a PAC code for the number you wish to keep.

2) Purchase a Pay As You Go (PAYG) SIM from any OTHER network.

3) Give your PAC code to the new PAYG SIM provider to transfer your number from iD Mobile to the PAYG network.

4) Once it's been transferred over, this sends your number to the new network on PAYG and cancels your old contract with us automatically, the final bill will be sent via email.

5) Once the number has fully transferred to the PAYG network allow 24 hours and then request a PAC code from them.

6) Transfer your number to the new iD Mobile plan via PAC code at the link below, once the transfer is fully complete your PAYG SIM will be disconnected and the desired number will be on the new iD Mobile account.

https://switching.idmobile.co.uk

Note; With a new iD Mobile account, you'll need to register a new iD Mobile app/website account to using an email address that hasn't been used previously to register.

Tom