The deadline for linking NIN with all four (4) network providers in Nigeria has been scheduled by Nigerian Communication Commission. For customers who have got their NIN already, the linking will stop on 9th January 2021 while the customers who have never got their NIN, their linking of NIN is still compulsory and it'll end on 19th February 2021. Read this also: how to apply for NIN in 2021 and get it very fast online without paying any money.