Everything you need to know about using an eSIM in South Korea.
South Korea's three carriers, SK Telecom, KT, and LG U+, run some of the fastest 4G and 5G networks in the world, dense across Seoul, Busan, and Jeju. An eSIM South Korea plan gets you onto them the second you land, no queue, no passport, no real-name form.
South Korea has required real-name SIM registration for two decades. Tourist prepaid SIMs at the Incheon airport kiosks need your passport, and carriers register a real-name account tied to your identity. That passport copy, your name, and a year of your call and location metadata sit with a Korean carrier.
Korea's telecom surveillance is aggressive: carriers keep about a year of metadata, and subscriber identity can be handed to authorities without a court warrant. Your movements become a passport-linked log.
The privacy law, PIPA, is often called Asia's GDPR, but it's corporate-facing, it governs what companies do with your data, not whether a carrier logs your SIM's metadata.
For a typical 5 to 14 day trip, 5 to 20 GB covers maps, KakaoMap, messaging, and photo uploads. One honest gotcha: a data-only eSIM won't give you a Korean 010 number, so apps that SMS-verify like KakaoTalk setup or delivery services may need a workaround. Plan for that.
A privacy-focused eSIM from ZILLA skips the real-name registration and the passport ledger. Pay with crypto, no KYC, no identity on a Korean carrier's books. Same blazing 5G, none of the paperwork.