KT

KT is a major South Korean mobile operator offering tourist SIM and eSIM plans with strong coverage across the country. About KT: As one of Korea's three main national operators, KT has invested heavily in tourist-facing services, including eSIM options that let visitors activate a Korean data plan digitally without a physical store visit. Key Features: Tourist SIM & eSIM Plans: Choose between a physical SIM or digital eSIM activation for your stay. Airport Counters: Buy a SIM directly at counters in major Korean airports. English Interface: Tourist-facing services and signage are available in English. Solid Network Coverage: Reliable coverage across major cities and most tourist destinations. How to Get Started: Purchase a tourist SIM or eSIM plan online in advance, or buy one at the airport counter with your passport. Activate the physical SIM or eSIM following the provided instructions. Use the data plan for the duration of your stay. Top up or extend the plan online if needed. Important Notice: A passport is required to register any SIM card in South Korea, including tourist packages — some eSIM plans may allow partial online setup before arrival, but registration itself is still tied to passport verification.