How to Check NIN with USSD (MTN, Airtel, Glo &9mobile)

The National Identification Management Commission (NIMC) is responsible for the National ID, which is one of the valid means of identification for citizens of the Federal Republic of Nigeria. The National Identification Number (NIN) is a unique code assigned to each citizen that connects them to the NIMC system. This article provides instructions on how to check your NIN using your mobile phone through USSD codes.

How to Check NIN with USSD

To check your NIN on any SIM card (MTN, Airtel, Glo, 9mobile) on your phone, follow these steps:

  1. Dial *346# on your phone.
  2. From the options displayed, select “NIN Retrieval” by entering ‘1’ (only if you are using the same phone number you enrolled with for your NIN).
  3. Follow the steps displayed on your screen and provide the required inputs.
  4. Your NIN will be displayed.

Please note that using this service incurs a fee of N20, which will be deducted from your phone credit balance. It is advisable to screenshot the code or write it down for future reference.

How to Validate NIN

If you have forgotten your NIN or misplaced your NIN slip, you can conveniently retrieve it using your mobile phone through NIMC’s USSD service. Now let’s discuss how to validate your NIN online for free.

To validate your NIN online, follow these steps:

  • Visit the website
  • Click on the “Verify NIN” button.
  • Enter your NIN.
  • Respond with the security code sent to you.
  • Confirm the correctness of your details.
  • Click “Submit.”

If the first option does not work, it is recommended to visit a nearby NIMC office and request to validate your NIN. Please note that there might be a cost associated with this option, and the process usually takes 24-72 hours. To confirm if the validation has taken effect, try linking your NIN to any of your SIM cards. If the link is successful, it means the process worked.

Also Read:

How to Link NIN to SIM Card

Since the Nigerian government has directed the linking of NIN to phone lines/SIM cards, it is crucial to know the codes for linking your NIN to your SIM. Here are the steps for different service providers:


  • Dial *785# using the phone number you want to link.
  • Enter your NIN.
  • Submit. Or
  • Dial 785NIN# from the phone number you want to link. Or
  • Visit the MyMTNApp and follow the prompts.


  • Dial 1211# to link your Airtel SIM to your NIN. Or
  • Visit the website


  • Create a new message on your phone.
  • Send the message to 109.


  • Dial 2008# on your 9mobile SIM.
  • Add the NIN when prompted.
  • Submit. Or
  • Visit their website at for the latest updates on how to link your NIN.

Please note that terms and conditions apply for linking your NIN to your SIM card. Stay informed by following the latest updates from your service provider.

By following these steps, you can conveniently check your NIN, validate it online, and link it to your SIM card using your mobile phone.

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