SK Telecom is South Korea's largest wireless telecommunications service provider, serving millions of mobile subscribers across cellular and fixed-line services. The company generates revenue primarily through monthly postpaid and prepaid wireless service plans, device sales, and value-added services including broadband internet, IPTV, and IoT solutions offered through its subsidiary SK Broadband and its own network infrastructure. SK Telecom competes against two major operators and several mobile virtual network operators in a mature, consolidated domestic market, and pursues growth through network quality improvements, AI-driven services, and operational efficiency while divesting non-core businesses to focus on core telecommunications and strategic capabilities.