Meaning PIN unlock key
Type Acronym
Rank ★ ★ ☆  Average
Usage General (not just online)

A PIN unlock key is a code used to unlock a locked SIM card. It may be needed to unlock a SIM card that has been locked multiple incorrect PIN entries. You can typically get the PUK code by contacting your cell phone company.

Example "If your SIM card is locked, you can call Verizon Wireless support to get a PUK code."
Updated May 25, 2013