Companies like MTN, Glo, Airtel, and 9Mobile have been telling their customers for a while to link their National Identity Numbers (NIN) to their phone numbers for a while now. Your SIM card will be disabled if you are unable to recall your PIN number. Here’s how to check your NIN on MTN, Glo, Airtel, … Continue reading How to check your NIN number on MTN, Airtel, 9mobile, and Glo