What does PUK stand for?

PIN unlock key

When you punch in the wrong PIN for your SIM card too many times, it gets locked. This is where a PUK comes in. It’s a special code that you need to unlock your SIM card again.

Getting the PUK isn’t as simple as retrieving a forgotten password. It’s a unique code that you can only get by reaching out to your mobile phone service provider, like Sprint or T-Mobile.

Example for using ‘PUK’ in a conversation

Hey, I need your help. My phone is asking for a PUK code, do you know what that means?

Yeah, a PUK code is a PIN unlock key. It’s a code you need to unlock your SIM card when you’ve entered the wrong PIN too many times.

Oh, got it! How do I get the PUK code?

You’ll have to contact your cell phone carrier, like AT&T or Verizon. They can provide you with the PUK code to unlock your SIM card.