FREE Advanced Subnet Calculator

Handy and easy-to-use Subnet Calculator. Use our FREE online Subnet Calculator to create lists of addresses for subnets.

IP Calculator. ipcalc takes an IP address and netmask and calculates the resulting broadcast, network, Cisco wildcard mask, and host range.

This IP subnet calculator covers both IPv4 and IPv6 protocols, providing information such as IP address, network address, subnet mask, IP range, and more.

Subnet calculator performs network calculations using IP address, mask bits, determines the resulting broadcast address, subnet, and more.

Breakdown IPv4 address into mask bits and subnet mask. Generate the respective address range and CIDR notation.

The original fully featured, professional IPv4 network calculators including classful subnet, CIDR and wildcard mask calculators.

The subnet calculator lets you enter a subnet range (CIDR) and see IP address information about that range You can type your range directly in CIDR notation, or ...