How to Get PUK Code of BSNL Sim? BSNL Puk Code Unlocking Methods 2024?

BSNL PUK Code 2024: A PUK (Personal Unlocking Key) code is your lifeline when your BSNL SIM card is locked due to repeated incorrect PIN entries. This critical 8-digit code is essential to regain access to your precious mobile connection. If you’re a BSNL user grappling with this issue, fret not, as we’ve got you covered. In this comprehensive guide, we’ll explore the various methods to obtain your BSNL PUK code and unblock your SIM.

BSNL Puk Code

In 2024, if you find yourself in a situation where your BSNL (Bharat Sanchar Nigam Limited) SIM card is locked due to multiple incorrect PIN attempts, you’ll need to obtain your PUK (Personal Unlocking Key) code to regain access to your mobile services. The PUK code is essential for unlocking your SIM card and restoring its functionality. In this guide, we will explore the various methods you can use to retrieve your BSNL PUK code, ensuring that you can continue using your mobile device without any interruptions. Whether you’re a long-time BSNL user or a newcomer to their services, understanding how to obtain your PUK code is crucial, and we’re here to help you navigate this process smoothly.


What is BSNL PUK Code?

BSNL (Bharat Sanchar Nigam Limited) PUK code, or Personal Unblocking Key code, is a unique code provided by BSNL to unlock a blocked SIM card. A SIM card typically becomes blocked when you enter the PIN (Personal Identification Number) incorrectly multiple times. The BSNL Sim PUK code is a security feature designed to prevent unauthorized access to your SIM card and the mobile network associated with it.

Check Also : FMS BSNL Registration

If you enter the wrong PIN several times and your SIM card becomes blocked, you will need to use the PUK code to unblock it. You can obtain your Latest BSNL PUK code from your BSNL mobile service provider. It may be provided on the SIM card packaging or in your account details.

What is BSNL Sim Lock Pin? How to Turn it ON/OFF?

SIM Lock Features are available across all major service providers, including BSNL, Airtel, Jio, and others. These features function similarly to a Phone PIN Lock, serving the essential purpose of enhancing security.

However, many individuals tend to avoid utilizing these features due to their complexity. An incorrect setup can lead to the permanent blocking of your BSNL SIM card.

The primary objective of enabling Sim Lock is to safeguard your SIM card against theft or unauthorized use. You can activate this feature through your BSNL Phone Security settings.

Imagine a scenario where you’ve locked your BSNL SIM card and either restart your phone or insert the SIM into a different device. In such cases, your phone will prompt you to enter the SIM PIN. Failing to enter it correctly will result in the deactivation of your BSNL SIM card.

Before utilizing the BSNL Sim Lock feature, it’s crucial to verify the provided BSNL SIM Lock PIN codes (Default): 0000. Additionally, you have the option to change your PIN within the settings for added security.

Read also: Best BSNL 4G Prepaid, Postpaid Data Plans Details

How to Use Sim Lock Pin in BSNL?

Follow these simple steps to lock your SIM using the SIM Lock PIN. (If your SIM gets blocked, you can use the PUK code to unblock it).

Please Note: Keep your BSNL SIM PUK Codes as a backup in case your SIM gets blocked.

  • Navigate to your Mobile Security Settings.
  • Go to Sim Security, where you’ll find the option to Lock Sim Card.
  • Activate the option, and you’ll be prompted to set a 4-digit PIN with a limited number of attempts.
  • Enter the SIM Lock Code correctly, and your SIM is now locked.

To deactivate the SIM Lock, you’ll need the SIM Lock PIN/Code again. If your SIM is accidentally blocked, use the SIM PUK Code we have stored as a backup.

BSNL SMS Centre Numbers

How to Find BSNL PUK Code in 2024?

To unblock your SIM card using the BSNL PUK code, follow these steps:

  1. Call BSNL Customer Care: Dial the BSNL customer care number (usually 1503 or 1800-180-1503) from another BSNL number or visit a BSNL customer care center.
  2. Provide Information: You will be asked to provide certain information, such as your mobile number and other details for verification purposes.
  3. Request PUK Code: Request the PUK code from the customer care representative. They will provide you with the PUK code after verifying your identity.
  4. Enter PUK Code: Enter the PUK code you received into your locked phone when prompted. Follow the on-screen instructions to complete the process.
  5. Set a New PIN: After entering the PUK code successfully, you will be prompted to set a new PIN for your SIM card. Choose a new PIN that you can easily remember but is not too predictable.
  6. Restart Your Phone: Once you’ve set a new PIN, restart your phone. Your SIM card should now be unblocked, and you can use it as usual.

It’s essential to be cautious when entering the PUK code because if you enter it incorrectly multiple times, your SIM card may become permanently locked, and you’ll need to get a replacement SIM card from BSNL.

Keep your PUK code in a safe place and do not share it with anyone to maintain the security of your SIM card.

Check here: BSNL Call Forwarding USSD Codes

Reach Out to BSNL Customer Service

If your BSNL SIM card is locked, reaching out to BSNL’s customer service is your go-to solution. Here’s how to do it:

  • Call 1503 or 1800 180 1503 from any BSNL SIM. If you’re using a non-BSNL SIM, dial 1502 or 1800 180 1502; both calls are toll-free.
  • Navigate through the Interactive Voice Response (IVR) system to connect with a BSNL customer care representative.
  • Provide necessary details about your BSNL SIM, including the phone number (IMSI number) printed on the back of your SIM card.
  • The representative will furnish you with your 8-digit PUK code; make sure to note it down.

Find BSNL PUK Code by Sending SMS

This method allows you to retrieve your PUK code through SMS. Here’s how it works:

  • Utilize another BSNL SIM card and a separate device to open the messaging app.
  • Compose an SMS with the format: PUK (space) 15 or 19 digit SIM number (the one printed on your blocked SIM card).
  • Send the SMS to either 123 or 53733.
  • Shortly, you’ll receive an SMS containing your PUK code. Ensure to jot it down for future reference.

See also :  How to Check Call History On Airtel Prepaid/Postpaid Number

Bsnl Puk Code from Official Website

BSNL offers an online method to retrieve your PUK code through their official website:

  • Click on the three-line menu button on the BSNL website.
  • Select the “Sign-In” option and log in with your username and password.
  • Navigate to the PUK section and click on the “PUK Code” button.
  • Your PUK code will be displayed on the screen; remember to record it.

If you don’t have an existing BSNL portal account, you can create one, and from the account dashboard, contact customer support.

Use the My BSNL App to Find BSNL PUK Code

The My BSNL app offers a user-friendly interface to manage your BSNL account and retrieve your PUK code. Here’s how to do it:

  • Sign in to the My BSNL app.
  • Navigate to the relevant section to retrieve your PUK code.
  • Follow the app’s prompts to obtain your PUK code.

App Link: BSNL APP Google Play Store

Remember, after entering the PUK code, your SIM card will be unblocked. You’ll also have the option to set a new SIM PIN if desired. It’s crucial to keep the PUK code confidential to protect your SIM card from unauthorized access.


Getting locked out of your BSNL SIM card can be a daunting experience, but with these methods, you can swiftly retrieve your PUK code and regain control of your mobile connection. Always exercise caution and ensure the security of your PUK code to keep your SIM card protected. Your connectivity is just a few steps away!


How to Unblock Sim using 8 Digit PUK Code?

Locate Your PUK Code: The first step is to find your 8-digit PUK code. You can usually find it in one of the following places: On the SIM Card Holder: Check the packaging or holder in which your BSNL SIM card came. The PUK code is often printed there. BSNL Website: Log in to your BSNL account on their official website. Look for a section that provides your PUK code information. Contact BSNL Customer Support: If you can't find your PUK code through the above methods, you can call BSNL customer support. They will guide you through the process of obtaining your PUK code. Enter the PUK Code: Once you have your 8-digit PUK code, insert your BSNL SIM card into your mobile device. PIN Unlock Request: When you power on your phone, it will ask for the SIM card's PIN. Enter any incorrect PIN multiple times (usually three times). After the third incorrect attempt, your phone will prompt you to enter the PUK code. Enter the PUK Code: Carefully enter the 8-digit PUK code provided to you. Be cautious while doing this, as entering it incorrectly multiple times may permanently block your SIM card. Set a New PIN: After entering the correct PUK code, your phone will prompt you to set a new PIN for your SIM card. Choose a secure and memorable 4 to 6-digit PIN and enter it. Confirmation: Re-enter the new PIN to confirm it. SIM Unblocked: Once you've successfully entered and confirmed the new PIN, your BSNL SIM card will be unblocked and ready for use.

What is the full form of PUK code of BSNL?

The PIN unblocking key (PUK; sometimes called personal unlocking key) is a master security code for unblocking and resetting the personal identification number (PIN) for your BSNL SIM card. For added security, the PUK is unique to your SIM card.

Why my BSNL SIM is blocked?

Generally the SIM get blocked due to wrong entry of PIN number thrice and wrong entry of PUK number 10 times. In this case the SIM card becomes irreparable. You may have to purchase a new one.

What is the default PIN of BSNL SIM lock?

Default PIN code for BSNL Mobile customers (Prepaid & Postpaid) is 0000.

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