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Top Internet Providers in South Korea

Best Internet Service Providers in South Korea (2025) | TopProviders.net

South Korea is globally known for its ultra-fast internet, and 2025 is no different. This guide compares the best internet providers in Korea, including fiber, 5G, and budget broadband options across major cities like Seoul, Busan, Incheon, Daegu, and Daejeon. Whether you’re streaming, gaming, or working from home, use this guide to compare Korean ISPs by speed, reliability, and value.

Top 5 Internet Providers in South Korea

1. KT (Korea Telecom) – Best Overall Internet Provider

Speed: Up to 10Gbps (GiGA Internet), Avg. 900 Mbps (Fiber)

Coverage: Nationwide with strong rural presence

Pros:

  • Fastest and most stable fiber connection
  • 24/7 Korean and English support
  • Excellent rural and urban coverage

Cons:

  • Higher monthly fees
  • Requires ARC (Alien Registration Card) for foreigners

2. SK Broadband – Best for Streaming & Gaming

Speed: Up to 5Gbps (Fiber), Avg. 800 Mbps

Coverage: Excellent in Seoul, Busan, Incheon, Daejeon

Pros:

  • Low latency & optimized for gaming
  • Good IPTV bundles
  • Flexible 1-year and 2-year plans

Cons:

  • Customer service mostly in Korean
  • Mobile support app not foreigner-friendly

3. LG U+ – Best for Mobile + Internet Bundles

Speed: Up to 2.5Gbps (Fiber), Avg. 700 Mbps (5G)

Coverage: Strong in all major urban areas

Pros:

  • Great for 5G home routers
  • Bundle discounts with LG mobile and IPTV
  • Good for families with smart homes

Cons:

  • Limited English support
  • Lower upload speeds than competitors

4. DLive – Best Regional Cable ISP

Speed: Up to 500 Mbps

Coverage: Seoul suburbs, Gyeonggi-do, Chungcheong

Pros:

  • Budget-friendly cable internet
  • Great for casual users and students
  • Bundled with basic Korean TV channels

Cons:

  • Not true fiber (DOCSIS)
  • Only available in select regions

5. Hello Net – Affordable Local Internet Option

Speed: Up to 1Gbps

Coverage: Seoul, Incheon, Ulsan, small towns

Pros:

  • No-frills plans with good reliability
  • Fast setup for apartments (officetel)
  • Low-cost plans ideal for short-term stays

Cons:

  • Limited English-speaking service
  • No mobile or TV bundling

Internet Providers by City

Seoul Best Overall

Top Providers: KT, SK Broadband, LG U+

Avg. Speed: 920 Mbps (Fiber), 450 Mbps (Mobile 5G)

Special Notes: Most apartments (officetel/villa) support all three major ISPs.

Busan

Top Providers: KT, LG U+, SK Broadband

Avg. Speed: 850 Mbps (Fiber), 400 Mbps (5G)

Incheon

Top Providers: KT (Best coverage), LG U+

Avg. Speed: 800 Mbps (Fiber), 380 Mbps (Mobile)

Daegu / Daejeon

Top Providers: KT, SK Broadband

Avg. Speed: 780 Mbps (Fiber)

Other Regions

  • Gwangju: KT, SK Broadband
  • Ulsan: KT, Hello Net
  • Suwon: LG U+, DLive
  • Gyeonggi-do: KT, DLive, LG U+

How to Choose the Best ISP in Korea

  1. Use your building name and address to check availability before signing up
  2. Compare usage needs:
    • Streaming/Gaming: SK Broadband
    • Home + Mobile bundles: LG U+
    • Simple browsing/students: Hello Net or DLive
  3. Foreigners should ask for English billing and support when possible
  4. Ask for promotions: Many plans include free routers, installation, or IPTV

Final Recommendations

  • Best Overall ISP: KT (Fast, stable, nationwide)
  • Best for Gamers & IPTV: SK Broadband
  • Best Bundle: LG U+ (Mobile + Internet)
  • Budget Option: Hello Net (Urban areas)

Need Help Choosing the Right Internet Provider in Korea?

Internet speeds in Korea are incredibly fast, but service availability and contracts can vary. Check exact coverage in your building before committing.

Read more: Find Top Internet & TV Service Providers in Your Area

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