Your IP address:
Provider:
...

For example: 3.137.181.52

/
Input
Address: 77.121.224.0
Netmask: 255.255.252.0 = 22
Inversion mask: 0.0.3.255
Binary: 01001101.01111001.11100000.00000000
Reserved: No
Result
Network: 77.121.224.0/22 (Class A)
First IP: 77.121.224.1
Last IP: 77.121.227.254
Broadcast: 77.121.227.255
Network range: 77.121.224.0 - 77.121.227.255
List of all IP addresses: 77_121_224_0-22.txt
Number of hosts: 1022
Number of IP addresses: 1024