Your IP address:
Provider:
...

For example: 3.19.30.232

/
Input
Address: 216.99.144.0
Netmask: 255.255.240.0 = 20
Inversion mask: 0.0.15.255
Binary: 11011000.01100011.10010000.00000000
Reserved: No
Result
Network: 216.99.144.0/20 (Class C)
First IP: 216.99.144.1
Last IP: 216.99.159.254
Broadcast: 216.99.159.255
Network range: 216.99.144.0 - 216.99.159.255
List of all IP addresses: 216_99_144_0-20.txt
Number of hosts: 4094
Number of IP addresses: 4096