How to Block MTN SIM Card in Nigeria

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Did you misplace your mobile phone, or it got stolen? Are you concerned about the safety of your personal information on your MTN SIM card? Do you want to block your MTN SIM card to prevent unauthorized access? If this is what you want to do, this article has got you covered!

In this article, you’ll be provided with different methods on how to block MTN SIM card in Nigeria. So, keep reading to find out how to protect your MTN SIM card and take the necessary steps to ensure the security of your personal information.

Let’s dive in!

Quick ways on How to Block MTN SIM Card in Nigeria

How to Block My MTN SIM Online

If you want to block your MTN SIM online, you can email [email protected]  with evidence to show that you’re the rightful owner of the SIM. However, this method may take some time for them to respond and take action, so you may want to explore other options below.

An alternative method is to visit the MTN website and use their social media buttons to chat with an agent on Facebook, Twitter, Instagram and even WhatsApp. Request that your SIM card be blocked and provide all the necessary information. This way, you can block your SIM card quickly and easily.

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How to Block MTN SIM Calling 180

Simply dial 180 from an MTN SIM or number to speak with a customer care representative. Follow all the instructions by the agent to get your MTN SIM blocked.


How to Block MTN SIM Using Customer Care

You can block your MTN SIM card in Nigeria by dialing 180, the toll-free customer service number from another MTN line, to speak to a customer service representative. Alternatively, you can use the online method, which includes chatting with an MTN customer support representative on Facebook, Twitter, and Instagram or chatting with Zigi on WhatsApp.


How to Block MTN Number With Code

The call-barring feature can block someone from calling you on your MTN line. To activate it, dial *35*PIN# on your MTN line. For example, to block 08142595920 from contacting me, I’d dial *35*08142595920#

 To deactivate it, dial #35*PIN#. If you wish to know the status of the call barring on your MTN line, just dial *#35# using that same line.


How to Block SIM Card From Another Phone

If you can access an MTN SIM card on another phone, dial 180 and speak to a customer care agent. From other networks, call 08031000180, while if you’re from outside the country, call +2348031000180 to block your MTN SIM.


How to Block a Stolen SIM Card

To block an MTN SIM card in Nigeria, choose one of the options above, which includes calling customer care on 180, sending them a mail or reaching out to them on their social media handles.

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Alternatively, walk into any MTN service centre close to you and ask a representative to block your MTN SIM card. You may be required to provide some information before the line would be blocked.

Frequently Asked Questions:

How Do I Block My MTN Number in Nigeria?

There are two ways to do this: using the call-barring service to block all incoming calls or blocking a specific number through the phone app’s settings. To use the call-barring service, dial *#35#to block all incoming calls. To block a specific number, open the Phone app, go to Call Settings, click Block numbers, and add the number you want to block.


However, If you have lost your MTN SIM card in Nigeria, you can block it by dialling 180 – the toll-free customer service number from another MTN line to speak to a customer service representative.

What Number Do I Call to Block My MTN SIM Card?

Call 180 to block your MTN SIM card

How to Unlock MTN SIM Block by NIN?

 Dial *785# on your phone. Select option 1 to “Link NIN to your line”. Then enter your NIN and your name and tap on “Submit”. You will receive confirmation that your NIN has been successfully linked to your line.



There you have it! Steps to take to block your MTN SIM card in Nigeria. This can be done through various methods, including contacting customer care on 180, emailing, or using social media handles. If your SIM card is lost or stolen, it’s important to take action fast to prevent unauthorized access and use of your SIM.