Turkcell Iletisim Hizmetleri A.S., together with its subsidiaries, provides converged telecommunication and technology services in Turkey, Belarus, Turkish Republic of Northern Cyprus, and the Netherlands. It operates through the Turkcell Turkiye, Turkcell International, and Techfin segments. The company offers voice services; international roaming services; mobile services, including wholesale IoT and access and call origination services; and tower and satellite services. It also provides fixed data services, such as capacity, IP, ethernet, manageable network, hosting and data center, wholesale fiber data flow access services, and security services, as well as digital services. In addition, the company is involved in information technology, value added GSM services, and entertainment investments; telecommunications, television, and content services; property investments; trade, wholesale, and retail of electricity; insurance agency activities; telecommunications infrastructure and investment; and customer relations and human resources management. Further, it offers consumer financing services; cloud solutions services; online radio, television, and on-demand streaming services; radio, television, and on-demand streaming services; and electronic payment services. Turkcell Iletisim Hizmetleri A.S. was incorporated in 1993 and is headquartered in Istanbul, Turkey.