Turkcell Iletisim Hizmetleri is a provider of mobile telecommunication services for consumer, corporate, and wholesale customers. The company operates in two segments, Turkcell Turkey and Turkcell International. It offers mobile communication and fixed voice services, and broadband services that consist of mobile broadband, fiber to the home/building, and ADSL. Besides, Turkcell Iletisim Hizmetleri delivers international roaming, and wholesale voice and data services.