Internet & Phone Setup in Korea
Korea has the fastest internet in the world. Here's how to get connected.
Home Internet (WiFi)
Most apartments come with a pre-installed internet line. You just need to sign up with a provider.
| Provider | Speed | Monthly | Contract |
|---|---|---|---|
| KT (μ¬λ ) | 500Mbps~10Gbps | β©25,000~55,000 | 3 years |
| SK Broadband | 500Mbps~10Gbps | β©25,000~50,000 | 3 years |
| LG U+ | 500Mbps~10Gbps | β©24,000~50,000 | 3 years |
π‘ Tips for Foreigners
- β’ You need an ARC (Alien Registration Card) to sign up
- β’ Ask your landlord which provider's line is installed β switching costs extra
- β’ 3-year contracts have early termination fees (β©100,000~200,000)
- β’ Installation takes 2-5 days after signup
- β’ Many realtors can help you sign up during move-in
No ARC yet? Temporary options:
- β’ Pocket WiFi rental β β©2,000~4,000/day at airport
- β’ Phone hotspot β Most plans include 100GB+ data
- β’ Goshiwon/Officetel β Often includes WiFi in rent
Phone & SIM Card
With ARC (Long-term stay)
Major carriers
SKT, KT, LG U+ β Visit any store with ARC + passport. Plans from β©30,000/month (unlimited data).
Budget MVNOs (μλ°ν°)
Tplus, Hello Mobile, U+ Prepaid β Same network, half the price. β©15,000~25,000/month.
Without ARC (Tourist / Short-term)
Airport SIM (Recommended)
Buy at Incheon Airport arrivals. KT Roaming, SK Telecom booths. 5-30 day plans, β©20,000~55,000.
eSIM
Airalo, Ubigi, KT eSIM β activate before landing. Data only (no Korean phone number).
Common Issues
WiFi router password?
Check the sticker on the bottom of the router. Default is usually the serial number.
Internet too slow?
Call your ISP (KT: 100, SK: 106, LG: 101). Free technician visit within 1-2 days.
Can't verify Korean phone number?
Many apps require Korean phone auth (λ³ΈμΈμΈμ¦). You need a plan under your name with ARC registered.
More guides: