SK Telecom Co., Ltd. engages in the provision of telecommunication and internet services. It operates through the following business divisions: Wireless Communication, Cable Communication, and Other. The Wireless Communication division includes mobile phone, wireless data, information and communication business. The Cable Communication division provides telephone, internet, data, and network rental services. The Other division focuses on the business of data broadcasting, database, and online information. The company was founded on March 29, 1984 and is headquartered in Seoul, South Korea.