Instantly calculate network details from any IP address and CIDR prefix. Get the network address, broadcast address, subnet mask, wildcard mask, first and last usable host, and total host count.
Planning IP address allocation for a new office network, determining usable host range for a /28 subnet, converting between CIDR notation and subnet masks, or verifying firewall ACL rules.
Calculate network address, broadcast address, subnet mask, and usable host range from an IP address and CIDR notation.