Calculate IPv4 network ID, broadcast address, netmask, wildcard, usable host IP range, and visual binary bit representations in real-time.
Each octet contains 8 bits; network bits and host bits are split by subnet prefix:
Enter your target IPv4 address (e.g. 192.168.1.50).
Adjust the CIDR prefix slider (/24, /16, /8 etc.) or click one of the quick presets.
Review Network ID, Broadcast, Subnet Mask, Wildcard, and Usable Host Range in real time.
Click 'Copy Report' to export full network specifications to your clipboard.
Subnetting divides a larger network into smaller, isolated, and manageable broadcast domains, reducing network congestion and conserving IP address space.
The first address in any subnet is reserved as the Network ID, and the last address is reserved as the Broadcast Address; neither can be assigned to individual devices.