data koreaKOICA Statistics & Data KOICA Open Data Portal Map Search Window Search. From 1991 to 2025, KOICA has provided $9.9 billion in grants to 174 ... Republic of Korea (13449) TEL: 1588-0434 FAX: (031)740-0260. COPYRHTⓒKorean eSim. Pros. Cons. No need to insert any physical SIM card into your phone. Can drain your phone battery the more you use your data. Can easily top up data if you run out. Much cheaper than roaming. Comes with a local phone