About IpRangeExplorer.com

IpRangeExplorer.com is a free CIDR calculator and IP range reference tool. Enter any CIDR block and instantly get the network address, broadcast address, subnet mask, usable host range, and total host count — for both IPv4 and IPv6.

The site also includes reference pages for all standard CIDR blocks and subnet masks, making it useful for network planning, cloud infrastructure setup, and firewall rule documentation.

This site is operated by Long Pattern LLC. We build reference tools for technical audiences on top of open standards and public data.

Questions or bug reports? Contact us.