Celtel is a telecommunications company operating in several African countries and is a subsidiary of Zain Group, or "Zain" in short. It was founded by Sudanese-born Mo Ibrahim. History Originally known as "MSI Cellular Investments", the company began operating in 1998. In January 2004, the company name was changed to "Celtel International". In April 2005 the company was acquired by and became a subsidiary of the Mobile Telecommunications Company. Celtel now spans over 15 countries in Africa wit… (More on Celtel)