In Nigeria, linking your National Identification Number (NIN) to your mobile phone line is no longer optional—it is a mandatory requirement set by the government. This policy was introduced to improve national security, reduce fraud, and ensure that every active SIM card is linked to a verified identity.
For millions of Nigerians using MTN, Airtel, Glo, and T2mobile(formerly 9mobile), failing to link NIN to their SIM cards can lead to restricted services or even complete line disconnection. Whether you use your phone for calls, internet access, banking, or business, staying connected is essential.
In this guide, you’ll learn how to easily link your NIN to MTN, Airtel, Glo, and T2 (9mobile) using simple USSD codes and online methods. The steps are straightforward, free, and can be completed in just a few minutes—without visiting any service center.
What Is NIN (National Identification Number)?
The National Identification Number (NIN) is a unique 11-digit number issued to every registered citizen and legal resident in Nigeria by the National Identity Management Commission (NIMC). It serves as your official digital identity and is used to verify who you are across government and private institutions.
Your NIN contains your personal information such as your full name, date of birth, and biometric data, including fingerprints and facial image. Once issued, the NIN remains the same for life and cannot be changed.
In Nigeria, the NIN is now required for many important activities, including SIM card registration, opening bank accounts, accessing government services, and more. If you do not yet have a NIN, you can enroll at any NIMC registration center nationwide. After successful enrollment, you will receive a NIN slip, which you can use to link your mobile line.
Why You Must Link Your NIN to Your SIM
The Nigerian Communications Commission (NCC), in collaboration with the National Identity Management Commission (NIMC), made it mandatory for all mobile subscribers to link their National Identification Number (NIN) to their SIM cards. This decision is aimed at strengthening national security and improving the integrity of Nigeria’s telecommunications system.
Linking your NIN to your SIM helps reduce crimes such as identity theft, SIM fraud, and cybercrime, as every phone number can be traced to a verified individual. It also ensures that mobile networks maintain accurate customer records.
If you fail to link your NIN, your line may be restricted or completely barred. This means you could lose access to calls, SMS, mobile data, and even essential services like banking alerts and OTPs. In some cases, reactivating a barred line can take time and may require visiting a service center.
By linking your NIN early, you avoid service disruptions, stay compliant with government regulations, and ensure uninterrupted access to your mobile network.
How to Link Your NIN to Your Mobile Number
Linking your National Identification Number (NIN) to your SIM card is simple and can be done in several easy ways. You can link your NIN to your mobile number using any of the four methods below, depending on what is most convenient for you.
1. Using the USSD Code
You can link your NIN directly from your mobile phone using a USSD code.
Dial *996# from the phone number you want to link.
Follow the on-screen prompts.
Enter your 11-digit NIN when requested.
This method works for all network providers in Nigeria.
2. Using Your Service Provider’s Online Portal
Each mobile network offers an online option for NIN linkage.
MTN
Visit the MTN NIN linkage portal: https://ninlinking.mtn.ng/
Follow the on-screen instructions.
You may be required to provide details such as your phone number and email address.
Alternative MTN option:
You can also use the myMTN NG app, MTN’s official mobile application.
Download the app from the Google Play Store or Apple App Store.
Log in to your account.
Follow the steps to link your NIN directly from the app.
Airtel
Visit the official Airtel NIN information portal.
Follow the steps on the website to link your NIN. This may involve providing your phone number and NIN.
Glo and T2 Mobile
For Glo, visit the NIN linkage portal:
www.gloworld.com/ng/nin/nin
For T2 Mobile, visit:
t2mobile.com.ng/nin
Follow the instructions on the respective websites to link your NIN to your line.
3. Using the NIMC Mobile ID App
Yes, you can also link your NIN to your SIM using the official NIMC Mobile ID app.
Download the app: Install the NIMC Mobile ID app on your device.
Log in: Open the app and log in using your security PIN.
Add mobile number: Tap “My Devices”, then select “Add Mobile Number.”
Enter and verify: Input the mobile number you want to link and enter the OTP sent to that number.
With this method, you can link up to seven (7) mobile numbers to one NIN.
4. Visit Your Mobile Network Service Center
If you encounter any issues while trying to link your NIN yourself, you can visit the nearest service center of your mobile network provider.
• Carry a valid means of identification.
• Provide your NIN and mobile number.
• A customer service representative will assist you with the linkage.
Frequently Asked Questions (FAQs)
Can I link one NIN to multiple SIM cards?
Yes. One NIN can be linked to multiple SIM cards, as long as the SIMs are registered in your name and comply with NCC guidelines.
How long does NIN linking take?
In most cases, NIN linking is processed instantly or within a few hours. However, during peak periods, it may take up to 24–48 hours to receive confirmation.
Is linking NIN to my SIM free?
Yes. Linking your NIN to MTN, Airtel, Glo, or T2 (9mobile) is completely free. You should not pay anyone to help you link your NIN.
Can someone link my NIN on my behalf?
Yes, but it is not recommended. Sharing your NIN can expose you to identity theft. If necessary, only allow trusted network service centers to assist you.
What should I do if I lost my NIN slip?
If you misplaced your NIN slip, you can retrieve your NIN by dialing *346# on the phone number you used during NIN enrollment, provided it is linked. Alternatively, visit a NIMC office for assistance.
Will my line be permanently blocked if I don’t link my NIN?
Your line may remain barred from calls, SMS, and data until your NIN is linked. Once properly linked and verified, services can be restored.
Conclusion
Linking your National Identification Number (NIN) to your MTN, Airtel, Glo, or T2(9mobile) line is an essential step for every mobile subscriber in Nigeria. It ensures compliance with government regulations while helping to improve security and identity verification across the country.
The process is simple, free, and can be completed in just a few minutes using USSD codes or official online portals. By linking your NIN early and confirming its success, you avoid service disruptions such as barred lines, missed calls, and interrupted internet access.
If you haven’t linked your NIN yet, now is the best time to do so. Staying connected begins with taking this important step today.
