Your IP address:
Provider:
...

For example: 18.224.59.231

/
Input
Address: 77.120.224.0
Netmask: 255.255.240.0 = 20
Inversion mask: 0.0.15.255
Binary: 01001101.01111000.11100000.00000000
Reserved: No
Result
Network: 77.120.224.0/20 (Class A)
First IP: 77.120.224.1
Last IP: 77.120.239.254
Broadcast: 77.120.239.255
Network range: 77.120.224.0 - 77.120.239.255
List of all IP addresses: 77_120_224_0-20.txt
Number of hosts: 4094
Number of IP addresses: 4096