Forgotten your National Identity Number (NIN)? – NIN USSD Dial *346#
To use this service, simply go through the following steps:
from the options displayed, select “NIN Retrieval”, by typing in ‘1’, if you are using the same phone number you enrolled with for your NIN
follow the steps displayed on your screen and provide the required inputs
note that using this service attracts a N20 (tweny naira) fee only (deducted from your phone credit balance).