Your IP address:
Provider:
...

For example: 3.147.126.242

/
Input
Address: 209.177.20.0
Netmask: 255.255.252.0 = 22
Inversion mask: 0.0.3.255
Binary: 11010001.10110001.00010100.00000000
Reserved: No
Result
Network: 209.177.20.0/22 (Class C)
First IP: 209.177.20.1
Last IP: 209.177.23.254
Broadcast: 209.177.23.255
Network range: 209.177.20.0 - 209.177.23.255
List of all IP addresses: 209_177_20_0-22.txt
Number of hosts: 1022
Number of IP addresses: 1024