IPv4 Range Expander

Expand IPv4 ranges/CIDR into addresses or summarized ranges.

Runs locally

IP Range Input

Supported Formats

  • 192.168.1.0/24 — CIDR block
  • 10.0.0.1 - 10.0.0.50 — Start/End hyphen range
  • 172.16.1.1 to 172.16.1.5 — Start/End "to" range
  • 192.168.1.10 — Single host address (defaults to /32)
Enter a CIDR or IP Range on the left to expand it.