Turkcell Iletisim Hizmetleri A.S. was registered on October 5, 1993 and began operations in 1994. Turkcell is the leading provider of mobile services in Turkey in terms of its number of users. As of December 31, 2012, the company owns 52% of the Turkish user market. The company provides high-quality mobile sound, Internet and other services on its mobile communication network. Through its value-added supply, the company has stood out from its competitors and developed its own high-quality mobile brand, including: advanced innovative technology, more advantageous and better comprehensive service quality, and leadership as a social responsibility. Due to its customer-oriented operations and its ability to provide rapidly differentiated solutions, it meets the needs of customers' lifestyles, thereby consolidating Qu's strong position in the market.