IP Analyzer & Subnet Calculator

IPv4 Address

CIDR Prefix (/%s)

Please enter a valid IPv4 address.

IP Address Classification

Subnet Mask

Network Address

Broadcast Address

Usable Hosts

Binary Math Breakdown

This illustrates the exact Bitwise operations your router performs to establish network boundaries.

■ Network Bits (Locked) ■ Host Bits (Available)

IP Address Subnet Mask AND Network Addr = * The AND operation locks in the Network bits. Both bits must be 1 to result in 1. This strips away all host bits, finding the start of the subnet.

Network Addr Inverted Mask OR Broadcast Addr = * The OR operation uses the inverted mask to force all Host bits to 1. This reveals the very last address in the subnet.