IPv6 CIDR, or Classless Inter-Domain Routing for IPv6, is a system used to allocate and manage IP addresses in the IPv6 address space. By splitting a large CIDR into smaller CIDR blocks, we can optimize the IP address usage and improve network management by segmenting it into smaller, more manageable units. This is useful when you need to separate between different departments in the same network.

This free online tool enables you to split the CIDR for a small set of values only. For a wider range CIDR split, please download the IP2Location.io IP Geolocation CLI tool.

Split large CIDR to small CIDR

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