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  1. How to Determine Your Mobile PUK Code - wikiHow

    Aug 2, 2025 · Did you enter the wrong PIN three times when trying to unlock your phone's SIM card? Don't worry—you can still unlock your phone by entering your Personal Unlock Key, or …

  2. PUK Code | How to find it and unlock your phone - Uswitch

    Nov 10, 2025 · PUK stands for Personal Unlocking Key. It's also sometimes called a network unlocking code (NUC) or personal unlocking code (PUC) This is a unique sequence of eight …

  3. Enter PUK Code - AT&T Wireless Customer Support

    Jan 14, 2025 · If your device displays PUK2 or PUK blocked call operator, then the wrong PUK code was entered 10 or more times in a row. The SIM card is blocked and must be replaced.

  4. 3 ways to get the PUK code of your SIM card - Digital Citizen

    Sep 26, 2025 · The PUK code or Personal Unlocking Key is a security feature of all the modern SIM cards used in our smartphones, tablets, and other mobile devices. If you insert the wrong …

  5. PUK code unlock | T-Mobile Support

    Learn what a PUK code is and how to use it.

  6. Personal unblocking key - Wikipedia

    A personal unblocking key (PUK), sometimes called personal unblocking code (PUC), is used in SIM cards to reset a personal identification number (PIN) that has been lost or forgotten.

  7. PUK code: What is it and how to use it? - Confused.com

    May 9, 2024 · You need a PUK code to unlock your phone, but how does it work and where do you find it? Here’s what you need to know. A PUK (personal unlocking key) code is a code that …