Subnet Calculator

In IP Subnet Calculator you can enter the IP address, choose the Subnet Mask, Network class, Mask Bits and other variables which will be used to calculate Subnet Network Mask.

The result shows the Wildcard Mask, Broadcast address, Subnet ID, Hex IP, Subnet Bitmap and host address range. What happens is that the IP address which is presented in xxx.xxx.xxx.xxx format is converted to Binary form through 'bitwise AND' operation between IP address and Subnet Mask. The network and subnet parts are separated from the host address that results in Network address and host identifier.

To calculate classless supernetting the CIDR calculator can be used. The Wildcard Mask can be used in simple Access Control List (ACL) wildcard mask calculations, through the use of Wildcard Mask Calculator.