KT Corporation provides integrated telecommunications and platform services in South Korea, Asia, and internationally. Its offerings include mobile voice and data services on 5G, 4G LTE, and 3G W-CDMA networks; fixed-line and VoIP telephony; broadband and data communication services; and media and content services such as IPTV, satellite TV, digital music, e-commerce, and online advertising. The company also provides credit card processing, IT and network services, satellite services, and sells handsets and telecommunications equipment. It engages in real estate development, telecommunication facility maintenance, software development, call center, system integration, cloud, data center, and submarine cable businesses. Formerly Korea Telecom Corp., it changed its name to KT Corporation in March 2002, was founded in 1981, and is headquartered in Seongnam-si, South Korea.