๐Ÿ“ฑ
phone Guide

Mobile Phones and Internet in Korea

LuckyHawk425ยทUpdated Feb 24, 2026ยท1 reads

Getting a Mobile Phone

Korea has three major telecom carriers. All offer multilingual customer support.

  1. KT (olleh) โ€” olleh.com โ€” Customer service: 100 โ€” English/Chinese/Japanese: 1588-8448
  2. SK Telecom โ€” tworld.co.kr โ€” English service: 82-2525-011
  3. LG U+ โ€” uplus.co.kr โ€” English service: 1544-0010

Two Payment Options

1. Postpaid (Monthly billing)

Same plans as Korean citizens. Requires an alien registration card and a Korean bank account or credit card under your name. Contracts are usually 1-3 years. Early cancellation incurs a penalty.

2. Prepaid (PPS)

Higher per-minute rates but no long-term contract. Suitable for short-term visitors. You only need a passport to activate.

Required for postpaid sign-up: alien registration card or domestic residence report. Payment must be through a bank account or credit card in the subscriber's name.

SIM Cards for Visitors

Prepaid SIM cards can be purchased online or at the airport:

  1. SIMCARDKOREA โ€” simcardkorea.com โ€” Tel: 82-505-648-7000
  2. EG SIM CARD โ€” egsimcard.co.kr โ€” Tel: 82-1899-6120 (Korean, English, Chinese)

Internet Service (Home)

Korea has some of the fastest internet speeds in the world. The same three carriers provide home internet:

  1. KT olleh โ€” olleh.com โ€” Inquiries: 100
  2. SK Broadband โ€” skbroadband.com โ€” Inquiries: 106
  3. LG U+ โ€” uplus.co.kr โ€” Inquiries: 101

Contracts are typically 1-3 years. Consider bundled packages (internet + phone + TV) for discounts. Cancelling early incurs a fee.

Compare plans at wiseuser.go.kr โ€” the government's telecom comparison portal.

Useful Phone Numbers

Police: 112
Fire / Ambulance: 119
Foreigner helpline: 1345
Government call center: 110
Directory assistance: 114

Source: KOTRA 2019 Guide to Living in Korea. Plans and rates may have changed โ€” check carrier websites for current info.

Still have questions?

Visa rules change often. Ask the community for the latest updates.

Ask the Community