Does a SouthESIM plan work at the DMZ border in South Korea?

Good news! Your SouthESIM plan will generally provide signal at key visitor areas within the DMZ in South Korea, such as the Third Tunnel of Aggression and the observation posts. This means you can share your experiences or look up information while learning about this significant historical site. However, as you approach the very sensitive military demarcation line, especially in more remote sections, you might experience some expected signal fluctuations. But for the main tourist spots, you should be fine!