NIN Enrolment Centre, Brentford 1st Floor, Suite 140E, West Link House, 981 Great West Rd, Brentford TW8 9DN Didn’t see the Day or Time slot you were hoping for? 4 Reasons why you need a NIN in the DiasporaIt is mandatory for All Nigerians, for identification.It will soon be needed for opening Nigerian Bank Accounts, etc.It is now Mandatory for renewal of Nigerian International Passport.Nigerian Telecom Companies have been asked by the Regulators to disconnect SIM Cards of customers who do not have a NIN.