SK Telecom is a South Korean mobile phone operator controlled by the SK Group, one of the country's largest chaebol.
In October 2000, SK Telecom became the first operator in the world to launch a commercial 3G service using CDMA2000 technology. In January 2002, this was followed up by launching the world's first CDMA2000 1xEV-DO network, offering greatly increased data transmission speeds.
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