new contract

You would have to get a PAC code from iD and transfer the number you want to keep to another network (not iD) PAYG SIM. You would then have to get another PAC code from the new network and port back to iD. You can’t keep/move your number direct from iD to iD unless you upgrade with iD. 

Hey there ​@zara_12, the official way to keep your number is to login to your iD Mobile account, and purchase an upgrade or plan change there. This automatically keeps your number.

If you wish to keep your number via a new plan, as kindly advised by ​@MZone, you’ll need to complete a triangle port following the method he outlined above^.

Thanks,

Tyler