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Founded 1993. MTS (Russian: МТС “Мобильные ТелеСистемы”, meaning “Mobile TeleSystems”) is the largest mobile operator in Russia and CIS with over 102.4 million subscribers as of 31 December 2009.

Traded as NYSE: MBT, NASDAQ: MBT and MCX: MTSS.

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October 2016 – Present logo of Mobile TeleSystems.