Türk Telekomünikasyon AS engages in the provision of local, national, international and mobile telecommunication services, internet product and services. It operates through the Fixed Line and Mobile business segments. The Fixed Line segment provides value-added services besides voice and data services for its corporate and retail customers through its extensive fixed-line telecommunications network. The Mobile segment offers mobile communications services, including pre-paid, post-paid, and value-added voice services. The company was founded on April 24, 1995 and is headquartered in Ankara, Turkey.