CIDR Slash Notation and Subnet Masks

I wrote a quick utility to help me figure out the available IP Address range when given a specific IPv4 address and slash number. You know something that looks like this: The utility should tell you the range of IP addresses that covers.

I’m not saying I’m a master of CIDR Slash Notation or Subnet masks… but this seems to be providing good results 🙂

Checkout the Calculator