MTN Group Limited, formerly M-Cell, is a South African multinational mobile telecommunications company, operating in many African, European and Asian countries.
Its head office is in Johannesburg. As of 30 June 2016, MTN recorded 232.6 million subscribers, making it the eighth largest mobile network operator in the world, and the largest in Africa.
Active in over 20 countries, one-third of company revenue come from Nigeria, where it holds about 35% market share.
In March 2019 MTN launched a WhatsApp channel to let its customers buy airtime and data bundles through the messaging app. Customers can also check their balances and store their credit or debit cards in the app for future purchases.
The service is provided by another South African company that has a global reach, Clickatell, which is a WhatsApp Business Solution provider.
According to en.wikipedia