• IP: 172.21.0.3
IP Subnetting

This tool simplifies IPv4 subnetting by allowing users to input a major (super) subnet and either a desired mask length or the number of hosts per subnet. Based on this input, the tool automatically generates a complete subnetting table, detailing network addresses, broadcast addresses, and usable host ranges for each resulting subnet—making it ideal for efficient network planning and address allocation

  • Super Subnet as example: 10.0.0.0/8
  • Number of desired hosts in the output subnet like 150 hosts per subnet mask length range from 1 - 32