CIDR calculator
Runs entirely in your browser. Useful for reading IP reports, ACLs, and route announcements.
Result
Canonical CIDR
54.188.0.0/15
Version
IPv4
Prefix
/15
Network
54.188.0.0
Broadcast
54.189.255.255
First address
54.188.0.1
Last address
54.189.255.254
Netmask
255.254.0.0
Wildcard
0.1.255.255
Total addresses
131072
Usable hosts
131070