Call 789 from your Virgin phone or 0845 6000789. Ask for your Port Authorisation Code (PAC).
This gives Virgin notice that you plan to leave. You should not cancel your account at this stage as otherwise your number cannot be transferred.
Virgin Mobile is legally obliged to give you your PAC code within 2 business days if you are at the end of your contract—but if you request it they should text it to you within 2 hours.
This PAC code is valid for 30 calendar days once issued, so you must find a new contract to switch to, purchase the contract and activate your account with the new vendor within 30 days. If you exceed this timeframe, you’ll need to ask Virgin for a new PAC code.
When you’ve chosen your new network, give them your PAC code and ask for your mobile number to be transferred. Once the mobile number has been ported, you’ll know as your old Virgin SIM will stop working and your new one will work using the same number you used to have.
NB – don’t forget that getting a PAC code only switches your phone number from one phone to another, it DOES NOT transfer anything you’ve saved to your old SIM card (eg. friends’ contact details, text messages, pictures etc.). To keep this saved data, you’ll need to do a separate transfer of your SIM data from your handset to your computer, and onto the new phone. For help with this, you can walk into any independent high street retail store (eg. Phones 4U, Carphone Warehouse, The Fonehouse etc.).