South Korea

South Korea IP Ranges

Up-to-date IP address ranges for South Korea in CIDR format. Download and use them in your network settings, firewalls or routers.

CIDR IPTABLES CISCO ACL
v4

IPv4

Number of blocks: 2,417

Download IPv4
v6

IPv6

Number of blocks: 181

Download IPv6
Updated: 03 February 2026

IPv4 Ranges Preview (first 20)

1.11.0.0/16
1.16.0.0/18
1.16.64.0/18
1.16.128.0/17
1.17.0.0/16
1.18.0.0/18
1.18.64.0/19
1.18.96.0/20
1.18.112.0/22
1.18.116.0/22
1.18.120.0/21
1.18.128.0/21
1.18.136.0/21
1.18.144.0/20
1.18.160.0/19
1.18.192.0/18
1.19.0.0/16
1.96.0.0/12
1.176.0.0/15
1.201.0.0/16

Showing 20 of 2,417 ranges

IPv6 Ranges Preview (first 20)

2001:220::/35
2001:220:2000::/35
2001:220:4000::/34
2001:220:8000::/33
2001:230::/35
2001:230:2000::/35
2001:230:4000::/34
2001:230:8000::/33
2001:270::/35
2001:270:2000::/35
2001:270:4000::/34
2001:270:8000::/33
2001:280::/35
2001:280:2000::/35
2001:280:4000::/34
2001:280:8000::/33
2001:290::/35
2001:290:2000::/35
2001:290:4000::/34
2001:290:8000::/33

Showing 20 of 181 ranges

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What are IP ranges for South Korea?

IP ranges are sets of IP addresses assigned to specific providers and organizations within South Korea. These addresses are used to connect devices to the internet or internal networks.

Application of IP ranges in South Korea

IP addresses in South Korea are widely used in network device settings such as firewalls, routers and switches. Knowing IP ranges helps filter traffic, block unwanted connections or allow access only to specific IP addresses.

IPv4 and IPv6 in South Korea

Up-to-date IPv4 and IPv6 ranges allow you to set up secure and reliable connections in South Korea. You can use these ranges to configure IPTABLES, IPCHAINS and CISCO ACL.

Search for open ports and services in South Korea

Discover which services and ports are open in :country. Global Threat Intel provides comprehensive data on internet infrastructure.

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South Korea

IPv4 blocks 2,417
IPv6 blocks 181
Formats 4