In the year 2013, the Nigerian telecommunications industry introduced the Mobile Number Portability (MNP) service, a service that affords you the opportunity to retain your phone number while you switch to another network provider.

This service has brought with it advantages and disadvantages. Here are some of them.

With the alarming rate at which GSM operators invents different phone number prefixes, sometimes it might be difficult to identify what network a particular phone number belongs to. Additionally it will be good to know the CDMA networks and the phone number prefixes associated with each.

Here are the present prefixes for GSM networks in Nigeria and the CDMA numbers.