BSNL PUK Code 8 Digit

BSNL PUK Code 8 Digit

If you’re a BSNL user and have accidentally locked your SIM card by entering the wrong PIN multiple times, you will need a PUK (Personal Unblocking Key) code to unlock it. 

Many users have experienced SIM card blocking or rejection due to entering an incorrect PIN or PUK code while updating their smartphone’s security settings. Sometimes, users lock their SIMs to protect personal information but then forget the password and attempt it incorrectly. The PUK code is used to unlock a SIM lock password and is required when users have entered the incorrect PUK code three times on their BSNL SIM device.

This guide will help you understand how to find your 8-digit BSNL PUK code and whether you can get it online. The PUK code is essential to regain access to your SIM and continue using your phone services without any interruptions.

Let’s start our blog on unlocking the BSNL with master code.

What is the BSNL 8-Digit PUK Code?

The PUK (Personal Unblocking Key) code is an eight-digit number used to unblock your SIM card after entering the incorrect PIN code three times. The card will become “PUK-locked” (i.e., it cannot be unblocked) if you enter the incorrect PIN code too many times.

Can I Get the BSNL PUK Code Online in 2024?

Currently, BSNL does not provide the PUK code directly online. However, you can use the BSNL SelfCare portal or the My BSNL app to raise a service request, or email customer support at for assistance.

Why is My Phone Asking for a BSNL SIM PUK Code?

Users cannot reset or modify the PUK, which is needed to unlock the SIM PIN. If you’ve locked your SIM by repeatedly entering the wrong PIN, your phone will ask for the PUK. Call your mobile network operator and ask for the PUK code if this happens.

BSNL PUK Unlock Number & Helpline Number

To know the PUK unlock number, you need to contact the BSNL customer care helpline number to unblock your SIM card.

The BSNL PUK customer care number is 1503, which helps you unblock your blocked BSNL SIM card.

Before calling the BSNL support center, gather the necessary information that executives will ask for verification:

  • 15-digit SIM number written on the back of the SIM card
  • SIM Card Holder Name
  • Address

Follow these instructions:

  1. Dial 1503 from another BSNL SIM phone.
  2. Listen to the IVRS system and select the appropriate option
  3. After selecting the PUK option, an executive will contact you.
  4. Request the BSNL PUK code for your blocked BSNL SIM card.
  5. Respond to customer service queries.
  6. Once verified, you will receive a PUK code to unlock your locked BSNL SIM.


PUK appears when a user makes an incorrect attempt at entering a personal identification number. You may unlock the BSNL PUK by SMS by following these simple steps:

  1. Use another BSNL activated SIM phone number.
  2. Type PUK > Space > 15-digit SIM number (printed on the back of the SIM).
  3. Send it to 123 or 53733.
  4. You will receive a response message with a unique BSNL Unlock Master PUK code.
  5. Unlock the phone by entering the 8-digit PUK code for BSNL into the locked SIM.

If you can’t perform this method, try another method of BSNL PUK unlock.

What is the Default BSNL PIN Code?

The default PIN code for BSNL Mobile (Prepaid and Postpaid) users is 0000. Changing the default PIN is always a good idea. You type the updated PIN directly into your phone, so no one can discover it, leading to a very low chance of stolen SIM data if the phone is stolen.

For the default PIN code for other private operators like Airtel or Jio, call the relevant telecom service providers’ Customer Care lines or check for their PUK codes.

How to Change the Default BSNL SIM PIN

To change your SIM card’s default MPIN, select the ‘Change SIM PIN’ option and then type the existing and new MPIN.

SIM Rejected Due to Incorrect PUK Code

You have three chances to type in the correct BSNL PUK code. After that, the card will be completely blocked, and you will be unable to use it. A SIM card blocked by the PUK code cannot be unblocked and must be replaced.

Where can I find my 8-digit BSNL PUK code?

You can find your BSNL PUK code on the original SIM card packaging, or by contacting BSNL customer care at 1503 from your Bharat Sanchar Nigam Limited (BSNL) mobile. Alternatively, visit the nearest BSNL office with a valid ID proof.

What are the Costs of Obtaining a BSNL PUK Master Code?

The BSNL PUK code is free. Contact your local customer service for a BSNL SIM PUK code.

Is There a Difference in the Process for PUK Code BSNL Postpaid SIM and Prepaid Service?

For both Prepaid and Postpaid BSNL mobile subscribers, the method for obtaining a BSNL SIM PUK code is the same.

Is it Possible to Obtain a BSNL PUK Code Without a SIM Number?

Without a 15-digit SIM card number, obtaining a BSNL PUK code is impossible. If you don’t have your SIM card, acquire a duplicate or replacement SIM from your local BSNL Customer Service Center.

If you found this article informative and helpful to unlock your BSNL, share this information with your friends. Whenever they face a SIM card block, this master code unlock guide for 2024 will help them.


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