Your National Identification Number (NIN) is needed for SIM registration, bank accounts, passports and many government services. If you have forgotten it or misplaced your slip, do not worry. This guide shows how to check NIN number on any network in Nigeria, plus other options if the USSD code does not work.
The steps work on MTN, Airtel, Glo and 9mobile.
How to Check NIN Number With USSD
The National Identity Management Commission (NIMC) code for NIN retrieval is *346#. It works on all major networks in Nigeria.
- Use the phone number that you registered with NIMC, or the number linked to your NIN.
- Dial *346#.
- Choose the option for NIN Retrieval, usually option 1.
- Follow the prompts. Your NIN will be shown on screen or sent by SMS.
Your network may charge a small fee for this service. In 2020, the Federal Government ordered networks to remove the ₦20 retrieval charge during the NIN-SIM linkage exercise, but some sources say a fee may apply again today. Keep a little airtime on your line before you dial.
Why the NIN Code Might Not Work
- Wrong phone number: the code works best on the number you used during NIN enrolment.
- Low airtime: if a fee applies, the request may fail without enough balance.
- Network delays: try again later if the menu does not load.
- NIN not linked: if your line is not linked to your NIN, the system may not find your record.
Check Which Numbers Are Linked to Your NIN
To see the phone numbers linked to your NIN, dial *996# on your line. This NCC harmonized code is used for SIM registration and NIN-SIM linkage verification. If a number you own is missing, link it using our guide on how to link NIN to SIM.
Other Ways to Check NIN Number
Use the NIMC mobile app
NIMC offers an official mobile ID app where you can view your digital NIN slip after verifying your identity. Download it only from the Google Play Store or Apple App Store, and check that the developer is NIMC.
Check your NIN slip or card
Your NIN is printed on the transaction slip you received during enrolment, and on your National e-ID card if you have one. Look through your documents before trying other options.
Visit a NIMC enrolment centre
If nothing else works, visit a NIMC enrolment centre or an approved partner with a valid ID. Staff can help you retrieve your NIN after confirming your identity.
Ask your bank or network
Some banks and network service centres can help you confirm your NIN details if they already have them on file. Always visit official offices, not roadside agents.
Protect Your NIN From Fraud
Your NIN is personal data. Criminals can misuse it for SIM swaps or fake accounts. Follow these tips:
- Never post your NIN slip on social media.
- Share your NIN only with trusted organisations that genuinely need it.
- Do not give your NIN to strangers who call claiming to be from NIMC or your bank.
- Check the numbers linked to your NIN regularly with *996#.
For more security advice, read our guide on digital skills every Nigerian student should learn.
NIN vs BVN: What Is the Difference?
People often confuse these two numbers:
| NIN | BVN |
|---|---|
| Issued by NIMC | Issued through banks and NIBSS |
| Used for national identity and SIM registration | Used for banking and financial services |
| Check NIN number with *346# | Check BVN with *565*0# |
Read our full guide on how to check BVN if you need your bank verification number too.
Quick Reference
| Task | Code |
|---|---|
| Check NIN number | *346# |
| Check numbers linked to your NIN | *996# |
| Customer care (all networks) | 300 |
Frequently Asked Questions
What is the code to check NIN number?
Dial *346# on any network and choose NIN Retrieval.
Is checking NIN free?
The fee was removed during the 2020 linkage exercise, but a small charge may apply now. Keep some airtime on your line.
Can I check NIN number with any phone number?
It works best with the number used during enrolment or linked to your NIN.
How do I get my NIN slip?
Use the official NIMC mobile app or visit a NIMC enrolment centre.
For official information, visit the National Identity Management Commission website.
Oladepo Babatunde (Prince Babatee Tunde) is a Computer Scientist, researcher, and professional content writer with a Higher National Diploma in Computer Science from Kwara State Polytechnic, Nigeria.
With a background in technology and a passion for clear communication, Babatunde specializes in creating thoroughly researched, reader-focused content on productivity, personal development, home living, and technology. Every article he writes is backed by extensive research and fact-checking to ensure readers receive accurate, actionable information.
As a freelance writer, he has helped brands and publications deliver content that educates, engages, and empowers their audiences. His mission at Vibena is simple: make complex topics easy to understand and help Nigerians live smarter, more productive lives.
