What is a STAC code?
A ‘service termination authorisation code’ (or STAC code), allows you to cancel your mobile number with your previous supplier when you change networks.
Things to know about your STAC code: -
- A STAC code is issued free of charge
- Your STAC code is valid for 30 days only
- Your new provider should be able to cancel your number the next working day, but there's no porting at weekends or on English Bank Holidays
- If you don't use the STAC code, your account will remain open and you'll continue to be charged for service.