Your IP address:
Provider:
...

For example: 3.144.12.205

/
Input
Address: 216.72.0.0
Netmask: 255.255.0.0 = 16
Inversion mask: 0.0.255.255
Binary: 11011000.01001000.00000000.00000000
Reserved: No
Result
Network: 216.72.0.0/16 (Class C)
First IP: 216.72.0.1
Last IP: 216.72.255.254
Broadcast: 216.72.255.255
Network range: 216.72.0.0 - 216.72.255.255
List of all IP addresses: 216_72_0_0-16.txt
Number of hosts: 65534
Number of IP addresses: 65536