Günther Ottendorfer

Founded in 1981, Optus Networks Pty Ltd. is a subsidiary of Singapore Telecommunications Ltd. that provides IT services. The company is based in Macquarie Park, Australia.

Sprint Corp. is a holding company, which engages in the provision of telecommunications services. The company was founded in 1899 and is headquartered in Overland Park, KS.

Part of Deutsche Telekom AG, Max Mobil Telekommunikation Service Gmbh is an Austrian company that provides wireless telecommunications services. The company is based in Vienna, Austria. Max Mobil Telekommunikation Service was acquired by T-Mobile International AG from KRONE-Verlag Gesellschaft mbH & Co. KG on April 01, 2000 for $122.14 million.

T-Mobile Austria GmbH engages in the provision of mobile telecommunications, fixed-line network, and Internet services. It also operates an online platform, which offers mobile phones. The company was founded in October 1996 and is headquartered in Vienna, Austria.

T-Mobile International AG & Co. KG provides telecommunications services. As strategic business segment of Deutschen Telekom AG for mobile telephony, the company concentrates on mobile telephony markets in Europe and the USA. The company is a partner of the FreeMove alliance, which they founded together with three other european mobile phone providers: Orange, Telefónica Móviles Espana and TIM (Telecom Italia Mobile). The company was founded in 1999 and is headquartered in Bonn, Germany.