How to connect my NIN to my Airtel Sim

Dial *121# on the Airtel line you wish to link.. Enter your 11-digit NIN and send.
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Airtel Subscribers can also link online by visiting https://www.airtel.com.ng/nin ,

1. Enter Mobile Number and click SEND OTP.
2. Type the OTP in the space below to confirm your number.
3. Thereafter enter your 11 Digit NIN and submit.