Your IP address:
Provider:
...

For example: 18.188.108.54

/
Input
Address: 77.120.220.0
Netmask: 255.255.252.0 = 22
Inversion mask: 0.0.3.255
Binary: 01001101.01111000.11011100.00000000
Reserved: No
Result
Network: 77.120.220.0/22 (Class A)
First IP: 77.120.220.1
Last IP: 77.120.223.254
Broadcast: 77.120.223.255
Network range: 77.120.220.0 - 77.120.223.255
List of all IP addresses: 77_120_220_0-22.txt
Number of hosts: 1022
Number of IP addresses: 1024