PUK code means Personal Unblocking Key,used to unblock the Sim card that blocked because of three incorrect entries of Pin code in a row.It's an 8-digit code.
This is a Pin Unlock Key code and is common whenever you switch a GSM cell phone's SIM card from one phone OR carrier to another. You can contact your respective carrier and obtain the code.
A PuK code is a parental lock setting that prevents minors from accessing "adult" sites and such remotely from your phone, the PuK code is chosen when you first purchase the phone.
