CIDR Calc

Route Summarizer

Reduce route lists into the smallest possible supernets while preserving reachability.

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Summary

Supernet output

Merged ranges

  • 10.0.0.0 – 10.0.3.255
  • 192.168.1.0 – 192.168.1.255

CIDR summary

  • 10.0.0.0/22
  • 192.168.1.0/24