There are many places where you can register for your national identity number (NIN), for state location please click here to see how to find them
Other places to register for NIN are
Banks like Zenith Bank, click here to see the list of zenith Bank branch that you can enroll
Polaris Bank, click here to see the list of approved branch that you can enroll
GLO Branch
MTN Branch
9mobile Branch
Airtel Branch
And Secretariat
Note: some network office my not be approved but their service center will be a good place for that
