Mobile Telecommunications Network, MTN is a South African based GSM(Global System for Mobile) communications . It was formerly called M-Cell in South Africa.
As at March 2016, MTN Nigeria had a subscriber base of almost 60 million.
Below are some very vital information to its subscribers:
247 Customer care toll free line (from an MTN line) Dial 180
247 Customer Care line from other networks +23480310180