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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. My Verizon Website - Locate the SIM PIN / PUK

    If you've locked your SIM card due to too many incorrect SIM PIN entries, the My Verizon website can help you quickly find your SIM unlock PIN and Personal Unblocking Key (PUK) to regain …

  7. 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.