Enter an IPv4 address with a CIDR prefix to see the full subnet breakdown.
Whenever you're setting up a proxy server, configuring firewall rules, or dividing a network into smaller segments, you need to know exactly which IP addresses belong to a given subnet - and which two addresses (the network and broadcast address) can't be assigned to a device.
Need to check your own IP first? Try our What's My IP tool.
Read more: CIDR Notation Explained: What /24 Actually Means.