How To Block MTN Sim Card If Stolen

how to block MTN sim card

With the rapid increase in crime rates, allowing a total stranger to use your MTN sim card, especially one who might have stolen your phone with the sim card inside, is very risky. Therefore, we are going to share guidelines on how to block MTN sim card if stolen or lost. 

How to block MTN sim card in Nigeria

MTN Nigeria provides several options on how to block MTN sim cards, recognizing the urgency of the matter. Before deciding to proceed with blocking, we advise people to try calling their numbers, as the phone may have been picked up by a good Samaritan. Attempt to call and retrieve your phone before making the permanent decision to follow our guidelines on how to block MTN sim cards.

You can block your stolen MTN sim card through any of the following methods:

  • Calling MTN customer care
  • Using another person’s phone
  • Using the Internet

Calling the MTN customer care

You can contact MTN customer care by using another MTN number and informing them of your intention to block your MTN sim card due to theft or misplacement. If asked whether you have tried calling the line and you explain that the number is switched off or not answering, they will check if it’s still active on a phone. If the person with your phone intentionally removes the sim card or switches it off, MTN will agree to block it for security reasons.

Even if you are unsure of alternative methods, contacting MTN directly is a reliable approach because MTN Nigeria prioritizes the security and privacy of its users. In addition to calling MTN customer care, you can also reach them through their official email address by sending an email. MTN Nigeria always has customer care representatives available to receive your complaints and offer solutions in the most effective manner.

Code to block sim card using Someone’s Phone

Dial ‘180’ for free from another person’s phone and speak to an MTN customer care representative on how to block MTN sim cards. This is useful when you do not have a second phone to use, and as long as you can prove the sim card belongs to you, they will assist in blocking the MTN card.

How to block sim card online

Reach out to MTN customer care online. They are ever-present online, so you can contact them at all times through the Internet. MTN has official pages on all social media, and the most common way people reach them is through Twitter. Tag them under any post on their wall, and they will respond promptly. In less than 5 minutes, your line will be blocked.

How to protect your sim card in case it gets stolen

You don’t have to wait for your sim card to be stolen to start looking for ways to block MTN sim cards. You can deny anyone access to your sim card at all times, ensuring that even if the sim card gets stolen, the person will not be able to use it because they can’t access it.

This is done by putting a pin lock on your sim card, so whenever your phone goes off and on again, the pin will be required. If the sim is put in another phone, the pin will be requested.

To set up your sim card safety pin:

  • Go to your phone settings
  • Select Security
  • Select ‘configure sim card lock’
  • Select ‘lock sim card’
  • Input the MTN sim card default pin (found on your sim pack)
  • Select ‘change sim card pin code’ to input your new 4-digit pin code
  • Re-enter the pin to confirm it.
  • Finally, turn your phone off and on again to confirm the activation of the pin. If it’s active, a pin will be required before you can access your sim card.

Remember to always remember your pin, as three unsuccessful attempts will prompt the PUK number to be requested. If you cannot input your PUK number (found on your sim pack), your sim card will be blocked.

What is the USSD code to block stolen MTN sim cards?

MTN Nigeria has not provided any USSD code for how to block a lost sim card in Nigeria. Just follow the steps provided here, and you will be able to block your stolen MTN sim card successfully.

Solve Your Other MTN Line Issues Using These Steps

Final Thought

In this article, we have covered how to block MTN sim cards if stolen; these steps are tested and trusted. If you do not want to find yourself in a situation requiring you to urgently block your sim card, consider setting up a sim card lock to ensure that no unauthorized persons access your sim. Which would you prefer, setting up a sim lock or blocking the sim when stolen? Please let us know in the comment section.

About Theresa 96 Articles
Theresa Akpan is an SEO specialist, content writer, and content creator who has worked with several business owners, companies, bloggers, and advertising agencies. From sales copy and blog posts to website content and video scripts, she has enjoyed the opportunities they have given her to help their businesses grow. With a strong background in technology, she excels in making complex tech ideas easy to understand. She founded, a website that helps people learn about digital marketing and technology. Her unique blend of tech knowledge and creativity provides practical and inspiring insights. Theresa is eager to share her expertise with you. Connect with her on LinkedIn and Instagram for updates, questions, or collaboration opportunities.