To use the IP Subnet Calculator
Enter your IP address and subnet mask details in the subnet calculator below. Our subnet calculator returns with both decimal and binary calculations for the Address, Netmask, Wildcard Mask, Network, Broadcast, first and last ip address on the subnet, as well as total number of usable ip addresses.[maj update=”02/06/15″]
Don’t miss our articles to understand the theory:
– Enter your ip address and either subnet mask or slash cidr notation.
For example –
- 10.0.0.0 255.255.255.0
- 10.0.0.0 0.0.0.255 (reverse/wildcard mask)
RouterFreak IP Subnet Calculator
From Wikipedia, the free encyclopedia
A subnetwork, or subnet, is a logically visible subdivision of an IP network. The practice of dividing a single network into two or more networks is calledsubnetting and the networks created are called subnetworks or subnets.
All computers that belong to a subnet are addressed with a common, identical, most-significant bit-group in their IP address. This results in the logical division of an IP address into two fields, a network or routing prefix and the rest field or host identifier. The rest field is an identifier for a specific “host” — either a computer, or a device, or specific network interface on a computer or device.