How it started
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 Zain (formerly the Mobile Telecommunications Company). At the time it was purchased by Zain in April 2005, Celtel had about 24 million subscribers in 14 African countries.
On 8 June 2010 the company was purchased by Bharti Airtel from Zain. On 22 November 2010, it was rebranded as 'Airtel'.
From Wikipedia’s article on Celtel, shared under CC BY-SA 4.0.2