Turkcell
Turkcell İletişim Hizmetleri A. Ş. is the leading mobile phone operator of Turkey, based in Istanbul. The company has 34. 4 million subscribers as of September 30, 2011. In 2015, the company's number of subscribers climbed to 68. 9 million, in nine countries Largest shareholder is Telia Finland Oyj with 51% ownership.