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:''For the Turkish basketball club, see Türk Telekom B.K.'' Türk Telekom is the formerly state-owned Turkish telecommunications company. Türk Telekom was separated from Turkish Post (PTT) in 1995. In November 2005, it was privatized to Oger Telecom. Türk Telekom Group provides integrated telecommunication services from PSTN, GSM to wide-band Internet. The Türk Telekom Group companies had 16.8 million PSTN customers, 6 million ADSL customers and 12.1 million GSM customers as of September 30, 2009. With its network substructure covering the whole country, the group's companies offer a wide range of services to personal and corporate customers. Türk Telekom, which owns 99.9% of the shares of the companies TTNET, Argela, Innova, Sebit A.Ş. and AssisTT, is also the owner of 81% of the shares of Avea, which is one of the three GSM operators in Turkey. Türk Telekom also supports Albania's Albtelecom. 55% of the shares of Turk Telekom belongs to Oger Telekomünikasyon A.Ş. and 30% of the shares belongs to Turkey's Undersecretariat of Treasury. The remaining 15% of shares has been offered to the public.〔 The company holds the naming rights to Türk Telekom Arena, home to the Galatasaray S.K. ==History== *1994, February 23, Turkey met with GSM technology. GSM was put into service firstly for its subscribers in Ankara, İstanbul, and İzmir. *1995, April 24, By separating the telecommunication and postal services in PTT from each other, Türk Telekomünikasyon A.Ş. was founded. *1998, April 27, GSM network was transferred to the firms Turkcell and Telsim for 25 years by giving licence. *1999, June, asymmetric digital subscriber line (ADSL) was put into service in order to provide high-speed voice and image communication on *2000, Cable Internet applications were started on cable TV. *2001 * *January 8, Aycell Haberlesme ve Pazarlama Hizmetleri A.S. was founded. * *March 21, Iş-TIM Telekomünikasyon Services Inc. started to operate with the commercial name of ARIA *2004 * *February 19, TT&TIM Communication Services Inc., established by the merger of Türk Telekom’s GSM Operator Aycell and İŞ-TİM, was officially founded. * *October 15, The commercial name of “TT&TIM Iletisim Hizmetleri A.S.” was changed as “Avea Iletisim Hizmetleri A.S.” * *July 22, Türksat A.Ş. was established and started operating separately from Türk Telekom. *2005, November 14, Türk Telekom’s privatization was complete and 55% shares of Türk Telekom was sold to Oger Telecoms Joint Venture Group. *2006, September 15, Türk Telekom acquired İŞ-TİM’s 40.56% share in Avea for $500 million and Türk Telekom’s share in Avea increased to 81.12%. *2008, May 15, The initial public offering for 15% of Türk Telekom shares was completed and the shares started trading on the Istanbul Stock Exchange. *2009, July, Avea launches 3G services. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Türk Telekom」の詳細全文を読む スポンサード リンク
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