Can I keep the same phone number when I switch mobile provider?
All UK providers will allow you to keep an existing UK mobile number you have when setting up a new package. Once you have received your new SIM, you can request a PAC code from your current supplier, which you can use to transfer your service. You can also do this while ordering your new SIM, but this can leave you without an active phone number while you wait for the SIM to be delivered, so we would recommend waiting until you have received the new SIM.