Internet Providers in South Korea
Asia-Pacific — Ranked #3 globally for broadband speed
South Korea has been a global broadband leader for over two decades. KT Corporation, SK Broadband, and LG U+ compete across a nationwide FTTH infrastructure, delivering symmetric gigabit speeds to virtually every household. South Korea was the first country to achieve 100 Mbps broadband coverage across major cities and remains one of the few nations where 10 Gbps residential plans are commercially available.
Broadband Overview — South Korea
| South Korea Internet Statistics | |
|---|---|
| Population | 51,744,876 |
| Internet Users | 50,000,000 (96.6% penetration) |
| Broadband Household Coverage | 99% of households |
| FTTH / Fibre Penetration | 88% of fixed broadband |
| Mobile Subscriptions | 141 per 100 people |
| Avg. Monthly Cost (broadband) | ~USD $28 |
| Regulatory Body | Korea Communications Commission (KCC) / Ministry of Science and ICT |
| Global Speed Rank | #3 (Ookla fixed broadband index) |
Broadband Infrastructure
South Korea's FTTH rollout began in the early 2000s, pioneered by KT. The government's IT839 strategy and subsequent broadband plans drove massive investment. All three carriers operate competing FTTH networks in parallel, with the government mandating co-location in apartment buildings to reduce duplicate infrastructure costs.
Key Facts
- ✓ South Korea ranks #3 globally for fixed broadband speed
- ✓ 88% of fixed broadband is FTTH — one of the world's highest rates
- ✓ South Korea was the first country to achieve nationwide gigabit coverage
- ✓ 10 Gbps symmetric plans available from KT and SK Broadband
Internet Freedom in South Korea
- ● Adult content (pornography) is blocked under the Act on Promotion of Information and Communications Network Utilization
- ● North Korea-related content deemed a security threat is blocked
- ● Online gambling sites blocked
- ● Korea Communications Standards Commission (KCSC) can order content removal
- ● General internet freedom for political speech and news
ISP Speed Comparison — South Korea
Benchmark speeds based on Speedtest.now methodology. Actual speeds vary by location and plan.
| Provider | Technology | Download | Upload | Ping | Details |
|---|---|---|---|---|---|
| KT Corporation | Fibre (FTTH), 5G | 289 Mbps | 281 Mbps | 5 ms | View → |
| LG U+ | Fibre (FTTH), 5G | 261 Mbps | 254 Mbps | 5 ms | View → |
| SK Broadband | Fibre (FTTH), 5G | 275 Mbps | 268 Mbps | 5 ms | View → |
All Providers in South Korea
KT Corporation
AS4766South Korea's largest telecoms company and fibre broadband leader.
LG U+
AS17858South Korea's third major carrier, known for aggressive pricing and 5G.
SK Broadband
AS9318South Korea's second-largest ISP, part of the SK Telecom group.
How to Choose an ISP in South Korea
1. Check Coverage
Not all ISPs serve all addresses. Enter your postcode or address on each ISP's website to confirm availability before ordering.
2. Match Speed to Use
Streaming HD requires 10 Mbps per screen. Working from home with video calls needs 25 Mbps minimum. Gaming and 4K streaming benefit from 100+ Mbps.
3. Compare Contracts
Check whether the ISP locks you into a 12 or 24-month contract. Rolling monthly deals offer flexibility but may cost more. Watch for setup fees.
4. Run a Speed Test
After signing up, run a speed test to verify you're getting the speeds you paid for. Test at different times of day.
Frequently Asked Questions — South Korea Broadband
How fast is internet in South Korea?
South Korea's median download speed is around 271 Mbps, ranking 3rd globally. Gigabit symmetric fibre is the standard for new plans.