A PAC code (Porting Authorisation Code) is a unique nine-character code that allows you to transfer your existing mobile phone number from one network provider to another. It is your right as a UK mobile customer to request a PAC code at any time, free of charge.
How to get your PAC code
Text PAC to 65075 from the number you want to keep. Your network must respond within one minute. The PAC code is valid for 30 days and is completely free.
What does PAC code mean?
PAC stands for Porting Authorisation Code. It is sometimes also searched for as “pack code”, “pak code”, or “stac code”. A STAC code is different — it cancels your contract without keeping your number.
PAC code key facts
- Valid for 30 days from the date issued
- Free to request — your network cannot charge you
- Number transfer completes within one working day
- Your old contract is automatically cancelled when the number ports
- Each mobile number requires its own PAC code
For a complete guide covering business PAC transfers, STAC codes, tips for smooth switching, and frequently asked questions, read our comprehensive PAC code guide.