The National Identification Number (NIN) is an 11-digit number assigned by the government of Nigeria to their citizens, as a form of identification.
Most people always find it difficult to remember their NIN offhand, as there are a lot of things the brain is being used for…lol. However, as long as you have your MTN SIM Card or any network which is linked to your NIN, you can simply check your NIN right from your mobile phone.
So, for MTN users, we shall be walking you through a simple guide on how to check NIN number on MTN, without any stress or going back to the NIMC for a reprint.
- Note that checking your NIN from your phone usually comes with a service fee of N20 airtime or above. This means that for you to be able to retrieve your NIN number on your MTN line, you must have at least N20 airtime on that SIM Card. This is usually debited automatically once the NIN retrieval is successful.
- Also Note that for you to check or retrieve your NIN number on MTN or any other network, that SIM card must be the one linked to your NIN; that it must be that particular SIM card you used to register for your NIN. It’s just the same thing as checking BVN, you cannot just use any SIM Card you like to check your NIN, it must be the one linked to your NIN.
What Is The Code For MTN NIN Number Checking?
The code for checking an NIN number on MTN is *346#.
With this USSD code, you will be able to check your National identification Number, also known as NIN on an MTN sim card.
- READ ALSO: How To Check MTN Balance (New Code)
What Are The Requirements To Check NIN Number On MTN?
To check your NIN or National Identification Number on MTN, there are a few requirements which you must meet, and all of these requirements are very important, because without them, you cannot check your NIN on MTN. Below are the requirements to check NIN number on MTN.
- Must have a valid NIN number, or you must have been enrolled for NIN.
- The MTN sim card must have been registered and linked with the NIN.
- Must have a good network connection.
- Must have the N20 NIN checking fee in their MTN account balance.
How To Check NIN Number On MTN

Checking your NIN on an NIN sim card is a very simple process and really does not take time, especially if a strong network is available and all other requirements are met.
Specifically, what you really need to get started in checking your NIN number on MTN sim card is the NIN checking USSD code. Below are steps on how to check NIN number on MTN.
- Dial the USSD code *346# on your mobile phone.
- Wait for a while.
- On the several options being displayed on your phone screen, simply select “NIN retrieval” (in most cases, it is usually the number 1)
- Wait for a while for the request to process.
- After some seconds, you should see the NIN number on your device.
Is There A Fee To Check NIN Number On MTN?
Yes, there is a service fee that applies when checking your NIN number on MTN. This is usually N20 airtime which will be deducted immediately and automatically from your SIM once the NIN retrieval is successful.
You must have this service fee readily available in your SIM or else, an error will be shown or a message saying “Not enough balance”. These are all part of the Terms and Conditions for checking an NIN number on MTN.
How Much Does It Cost To Check NIN On MTN?
The service fee for checking your NIN number on MTN is N20.
This fee is applicable anytime that you want to check for your NIN on your MTN sim card.
How Do I Check If My MTN Number Is Still NIN Linked
Checking if your NIN is still linked to your MTN phone line is a very simple process, and it just like checking your NIN on the MTN phone line. Below are steps on how to check if your MTN phone number is still linked to your NIN.
- Dial the USSD code *346# on your mobile phone.
- Wait for a while.
- On the several options being displayed on your phone screen, simply select “NIN retrieval”
- Wait for a while for the request to process
- If your MTN SIM is still NIN linked, your NIN number is going to be shown on your screen.
- If your MTN SIM is no NIN linked, you will get a notice to link your SIM to your NIN.
Note: The logic is that, if your MTN phone line still shows your NIN number while checking it, it simply means that it has been linked.
However, another way of checking is to see if it can make calls as all phone numbers that are not linked with their NIN are currently barred from making voice calls in Nigeria.
Frequently Asked Questions
Does MTN Allow For Checking Of NIN Number?
Yes, MTN allows for checking of NIN numbers. And above, I have shown you some simple steps on how to check NIN number on MTN.
Is It Safe To Check NIN Number On MTN?
Yes, it is very safe to check your NIN number on MTN. Though the NIN number is not really sensitive and it is very hard for one to be a victim of fraud if their NIN falls into the wrong hands, you still need to be careful with it and ensure that no one is watching the NIN number after it has been checked on your MTN phone line.
Can I Check NIN Number On MTN Via USSD?
Yes, you can check NIN number on MTN via USSD. And above, I have just shown you how to check NIN number on MTN via the USSD code.
Can I Use Another Person’s MTN Sim Card To Check My NIN Number?
No, you cannot use another person’s phone to check for your own NIN number. Else, the NIN number that you will see, is that of the person that owns the MTN SIM. To check your NIN number on your MTN SIM, you must use your own MTN SIM that is linked to your NIN.