Czech Republic IP Ranges in CIDR format

Updated: 17 September 2025

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IPTables

IPTables - for Linux firewalls

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IPChains

IPChains - for older Linux systems

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Cisco ACL

Cisco ACL - for Cisco routers and switches

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CIDR

CIDR - standard notation for IP ranges

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IPv4 Ranges

Total ranges: 1762

104.254.80.0/21

137.98.0.0/16

156.137.0.0/16

165.72.0.0/16

198.141.0.0/16

199.40.0.0/15

2.59.220.0/22

5.1.56.0/21

5.39.200.0/22

5.43.224.0/21

5.45.56.0/21

5.53.8.0/21

5.57.209.0/24

5.59.0.0/16

5.63.184.0/24

5.102.48.0/20

5.104.16.0/21

5.145.104.0/21

5.145.144.0/21

5.152.132.0/22

1742 more ranges...

IPv6 Ranges

Total ranges: 679

2607:de80::/32

2001:718::/29

2001:ae8::/32

2001:af0::/32

2001:b80::/29

2001:1468::/29

2001:1488::/29

2001:1508::/32

2001:1528::/32

2001:1568::/32

2001:15e8::/29

2001:1a48::/32

2001:1ab0::/32

2001:1ae8::/29

2001:36c0::/32

2001:41d8::/32

2001:4ba8::/29

2001:4cc8::/31

2001:4de8::/32

2a00:c40::/32

659 more ranges...

What are IP ranges for Czech Republic?

IP ranges for Czech Republic are sets of IP addresses assigned to internet service providers and organizations within Czech Republic. These addresses are used to connect devices to the internet or internal networks and help identify traffic originating from Czech Republic.

How to use Czech Republic IP ranges

IP ranges for Czech Republic are widely used in network device configurations such as firewalls, routers and switches. You can use these ranges to filter traffic, block unwanted connections from or to Czech Republic, or allow access only to specific IP addresses from Czech Republic.

IPv4 and IPv6 ranges for Czech Republic

Current IPv4 and IPv6 ranges allow you to configure secure and reliable connections with Czech Republic. You can use these ranges to configure IPTABLES, IPCHAINS and CISCO ACL configurations for network security and access control.

IPv4 Ranges

Total ranges: 1762

IPv4 ranges for Czech Republic include main address blocks used by internet service providers and organizations.

IPv6 Ranges

Total ranges: 679

IPv6 ranges for Czech Republic represent modern next-generation address blocks for advanced network infrastructure.

Network security tools for Czech Republic

Want to know which ports and services are open in Czech Republic? Register on ScaniteX and get free access to network security tools. Start scanning networks in Czech Republic right now!