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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 PUK code. If …

  2. PUK code unlock | T-Mobile Support

    PUK code unlock If a SIM PIN security code has been entered incorrectly multiple times, the SIM will lock and require you to enter a PUK code to use your device again. Be careful! If you incorrectly …

  3. 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 digits that your …

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

    Jan 14, 2025 · Learn how to get the PIN Unlock Key (PUK) code to unlock your SIM card. Devices display Enter PUK after more than three wrong PIN entries.

  5. 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 PIN code …

  6. How to Unlock the PUK Code on a Locked Mobile Phone: A Step-by …

    Jan 31, 2024 · The PUK code or Personal Unblocking Key is a safety feature on most mobile phones that protects your SIM card data. If you enter your PIN code incorrectly three times, your phone will …

  7. How to find the PUK code for your device - cspire.com

    First of all, what is a PUK? It’s your device’s PIN Unlocking Key (or PIN Unlocking Code). It’s an eight-digit number that is unique to the SIM card in your device. If you’re being prompted for the PUK, it …

  8. Unlocking the Secrets of SIM Card Security: Understanding PUK Codes

    3 days ago · A PUK code acts as an additional layer of security, protecting your data from unauthorized access. If your SIM card becomes blocked due to incorrect PIN entries, the PUK code is the only …

  9. My Verizon Website - Locate the SIM PIN / PUK

    If your SIM card is locked and you're unable to make or receive calls or connect to internet, here's how to find the SIM unlock PIN / PUK.

  10. 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.