CIDR calculator
Runs entirely in your browser. Useful for reading IP reports, ACLs, and route announcements.
Result
Canonical CIDR
15.188.0.0/16
Version
IPv4
Prefix
/16
Network
15.188.0.0
Broadcast
15.188.255.255
First address
15.188.0.1
Last address
15.188.255.254
Netmask
255.255.0.0
Wildcard
0.0.255.255
Total addresses
65536
Usable hosts
65534