How to use your Network Unlock Code
The Network Unlock Code or NUC (sometimes called a Network Unlock PIN or NUP, or Network Control Key or NCK) allows you to unlock a mobile phone from its original network.
This page details what you need to do if you’ve received your NUC but need help with how to use it on your phone.
If you’ve not received a NUC but need one, go to our Request a NUC page.
If you need to unlock your phone in another way, see our Unlocking your phone page.