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Subnet Calculator is a software tool that can be used in order to help people calculate a network, broadcast, Cisco wildcard mask and host range, given your IP address and netmask.

The installation process is not a prerequisite, as this product is portable. As a consequence, you should know that the Windows registry is not going to be updated with any new entries without your prior approval.

Another important aspect is that you can take Subnet Calculator anywhere with you, by simply moving the program files to a USB thumb drive.

You come across a tabbed interface, which enables you to quickly access and use a subnet, CIDR (Classless Internet Domain Routing) and wildcard mask calculator.

The first pane enables you to calculate the wildcard mask, hex IP address and first octet range, by inputting information such as network class, IP address, subnet mask, subnet bits, maximum subnets, hosts per subnet and mask bits. It is also possible to figure out the host address range, subnetID and broadcast address.

You can easily calculate the CIDR network route, address range and notation, from parameters such as IP, mask bits, maximum subnets and addresses.

Last but not least, you can display the first and last address, as long as you input an IP address and choose a wildcard mask from a drop-down menu.

To sum up, Subnet Calculator is a pretty efficient piece of software when it comes to making multiple calculations with network-related parameter. The interface is suitable to all, all tasks are going to be completed in a timely manner and the computer’s performance is not going to be hindered.