NIN Enrolment Centre, Woolwich, London Suite 105b Island Business Centre, 18-36 Wellington Street, Woolwich, London, SE18 6PF 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.