AS1237 KISTI
A network in South Korea. Here are the size of its IP ranges and the data used for visitor checks.
Visitor check data
- Network type
- Regular network
- Known VPN servers
- None
- Tor exit nodes
- None
This network mainly serves home, office and mobile lines. VPN servers are counted only when they are on the public list. How checks work
Addresses by country
South Korea289,792 addresses
United States2,048 addressesLargest IPv4 ranges
Up to 20, largest first (112 in total).
150.183.0.0/16
203.250.192.0/18
210.119.40.0 ~ 210.119.94.255
134.75.152.0 ~ 134.75.199.255
134.75.56.0 ~ 134.75.100.255
134.75.17.0 ~ 134.75.54.255
203.250.0.0/19
134.75.227.0 ~ 134.75.251.255
210.107.152.0 ~ 210.107.175.255
203.230.60.0 ~ 203.230.79.255
210.218.201.0 ~ 210.218.219.255
134.75.133.0 ~ 134.75.150.255
203.247.190.0 ~ 203.247.207.255
203.254.175.0 ~ 203.254.191.255
210.110.143.0 ~ 210.110.159.255
203.253.96.0/20
210.117.238.0 ~ 210.117.253.255
210.125.32.0/20
210.125.56.0 ~ 210.125.71.255
134.75.2.0 ~ 134.75.14.255
Data: DB-IP (CC BY 4.0), public VPN server list, Tor Project exit list · as of 2026-10-12