Turkcell
 Name Turkcell
 Grouping Operator
 URL http://www.turkcell.com.tr/en
 
 Description GSM-based mobile communication started in Turkey when Turkcell started its operations in February 1994. Turkcell signed a 25-year GSM license contract on April 27, 1998 with the Ministry of Transportation of Turkey. Since then, it has continuously increased the variety of its services based on mobile audio and data communication, its quality levels and as a result, number of subscribers. As of December 31, 2008, Turkcell has made 7,7 billion US dollar s worth of investment in Turkey, which doesn't include the price of the license. Again as of December 31, 2008, with its 37 million subscribers, Turkcell is not only the leading operator in Turkey, but is also the third biggest GSM operator in Europe in terms of subscriber numbers.