Subnet Plus - Subnet Calculator 1.6

A free Subnet Calculator for the iPhone and iPad is available for those looking to enhance their subnetting skills. With the ability to save calculated networks, this tool is a practical aid for studying for CCNA, Network +, and various other networking exams.

For beginners learning subnetting, the calculator provides display options to show complete binary and hexadecimal information for calculated subnets. The Binary Display feature makes it easier for newcomers to visualize the starting points of network and host addresses.

What exactly is a subnet, and why is a subnet calculator necessary? A subnet, or subnetwork, refers to a distinguishable part of an organization's IP network. It can represent machines within the same geographic location, building, or virtual local area network (VLAN). By dividing an organization's network into subnets, it becomes possible to connect to the Internet using a single shared network address. This eliminates the need for multiple Internet connections for physically separate subnetworks, conserving the limited number of network numbers available for assignment on the Internet.

Network engineers rely on this Subnet Calculator to determine subnet masks, usable IP address ranges, broadcast IP addresses, and network numbers.