IP address ranges in South Korea
South Korea holds 136,976 IPv4 segments in the IP99 geolocation database, covering 116,175,272 addresses. In the 4 days to 12 September 2026 we newly captured 12,518 proxy-type addresses there.
Network usage types
The ratio of residential broadband to datacenter address space is the most direct indicator of what kind of proxy risk a region carries: a high datacenter share means datacenter proxies are more likely; a high residential share means home-broadband proxies and dial-up pools are.
| Usage type | Segments | Share |
|---|---|---|
| Residential broadband | 12,656 | 47.1% |
| Datacenter | 6,322 | 23.5% |
| Gateway / NAT egress | 5,370 | 20.0% |
| Education network | 2,207 | 8.2% |
| Mobile network | 143 | 0.5% |
| CDN node | 62 | 0.2% |
| Organisation | 59 | 0.2% |
| Government | 29 | 0.1% |
Regions
| Region | Segments | Share |
|---|---|---|
| Seoul | 43,829 | 32.0% |
| Gyeonggi-do | 33,718 | 24.6% |
| Incheon | 14,770 | 10.8% |
| Gyeongsangnam-do | 4,797 | 3.5% |
| Gangwon-do | 4,785 | 3.5% |
| Chungcheongnam-do | 4,735 | 3.5% |
| Gyeongsangbuk-do | 4,314 | 3.1% |
| Busan | 4,283 | 3.1% |
| Jeollabuk-do | 3,747 | 2.7% |
| Jeollanam-do | 3,669 | 2.7% |
| Daejeon | 3,439 | 2.5% |
| Daegu | 3,132 | 2.3% |
| North Chungcheong | 2,124 | 1.6% |
| Gwangju | 2,063 | 1.5% |
| Ulsan | 1,315 | 1.0% |
| Jeju-do | 1,142 | 0.8% |
| Chungcheongbuk-do | 907 | 0.7% |
| Seoul-teukbyeolsi | 191 | 0.1% |
| Daejeon-gwangyeoksi | 14 | 0.0% |
| Busan-gwangyeoksi | 1 | 0.0% |
| Gangwon-teukbyeoljachido | 1 | 0.0% |
Cities
| City | Segments | Share |
|---|---|---|
| Seoul | 44,006 | 32.1% |
| Incheon | 14,761 | 10.8% |
| Suwon | 5,730 | 4.2% |
| Busan | 4,283 | 3.1% |
| Seongnam-si | 3,350 | 2.4% |
| Hwaseong-si | 3,205 | 2.3% |
| Daegu | 3,131 | 2.3% |
| Gwangju | 3,011 | 2.2% |
| Goyang-si | 2,659 | 1.9% |
| Ansan-si | 2,496 | 1.8% |
| Daejeon | 2,117 | 1.5% |
| Cheongju-si | 1,901 | 1.4% |
| Anyang-si | 1,777 | 1.3% |
| Hwado | 1,723 | 1.3% |
| Cheonan | 1,567 | 1.1% |
| Changwon | 1,544 | 1.1% |
| Jeonju | 1,542 | 1.1% |
| Pyeongtaek | 1,502 | 1.1% |
| Bucheon-si | 1,384 | 1.0% |
| Ulsan | 1,315 | 1.0% |
Autonomous systems
An ASN identifies the operator of a network. Addresses under one ASN usually share risk characteristics, which is why risk controls often act on whole ASNs rather than single addresses. Operator names are not published here — the machine-readable identity is the ASN.
| ASN | Segments |
|---|---|
| AS4766 | 61,430 |
| AS9318 | 24,465 |
| AS17858 | 16,337 |
| AS3786 | 12,262 |
| AS9644 | 3,063 |
| AS9316 | 1,183 |
| AS17849 | 849 |
| AS10036 | 623 |
| AS8075 | 603 |
| AS9848 | 599 |
Look up a single address
Free, no signup: curl https://ip99.com/v1/ip/8.8.8.8 — see the API documentation.