CIDR calculator
Runs entirely in your browser. Useful for reading IP reports, ACLs, and route announcements.
Result
Canonical CIDR
147.72.242.0/24
Version
IPv4
Prefix
/24
Network
147.72.242.0
Broadcast
147.72.242.255
First address
147.72.242.1
Last address
147.72.242.254
Netmask
255.255.255.0
Wildcard
0.0.0.255
Total addresses
256
Usable hosts
254