Turkcell Iletisim Hizmetleri AS provides mobile telephone services in Turkey. The firm's services portfolio includes mobile and fixed voice, data, TV, and digital services over its network. The firm also operates in the Turkish Republic of Northern Cyprus, Belarus, the Netherlands, and Ukraine. It has three main reportable segments: Turkcell Turkiye, Techfin, and Other. The Turkcell Turkiye segment, which derives the majority of revenue, comprises mainly telecommunication and technology services activities.