Your IP address:
Provider:
...

For example: 18.217.144.32

/
Input
Address: 66.151.8.0
Netmask: 255.255.252.0 = 22
Inversion mask: 0.0.3.255
Binary: 01000010.10010111.00001000.00000000
Reserved: No
Result
Network: 66.151.8.0/22 (Class A)
First IP: 66.151.8.1
Last IP: 66.151.11.254
Broadcast: 66.151.11.255
Network range: 66.151.8.0 - 66.151.11.255
List of all IP addresses: 66_151_8_0-22.txt
Number of hosts: 1022
Number of IP addresses: 1024