Is this EastESIM plan for South Korea valid for Japan or China too?

A specific EastESIM plan purchased for South Korea is valid only within South Korea. If your travel plans include visiting neighboring countries like Japan or China, your South Korea-specific connection will not extend beyond its borders. These are distinct countries with separate telecom networks and regulations. For travelers embarking on a multi-country Asian itinerary, we highly recommend exploring our regional Asia-wide EastESIM plans. These comprehensive packages are designed to provide seamless connectivity across multiple nations, saving you the hassle of purchasing individual eSIMs for each leg of your exciting journey.