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

IPv4

Number of blocks: 2,413

Download IPv4

IPTABLES IPCHAINS CISCO ACL

IPv6

Number of blocks: 180

Updated: 18 December 2025

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 2,413 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.

Check open ports and active services in South Korea

You may also be interested in learning which services and ports are open in this region. Sign up for a free trial at ScaniteX and start scanning networks right now!

South Korea

IPv4 blocks 2,413

IPv6 blocks 180

Formats 4