Living in Korea: Key Terms
통신사 선불·후불
tongsinsa seonbul·hubul · Prepaid and postpaid phone plans
What it is
Prepaid plans are paid in advance; postpaid plans bill monthly and usually require a contract.
Where newcomers get stuck
Postpaid plans usually need a residence card; short-term visitors normally go prepaid with a passport.
What you need
Passport (prepaid) or residence card and bank account (postpaid).
Useful sentence
선불 유심 있어요?seonbul yusim isseoyo?Do you have prepaid SIM cards?
Rules and costs change and vary by district and building — no prices here. Check with your agent, building office or the official sites before you decide.