Your IP address:
Provider:
...

For example: 18.222.240.21

/
Input
Address: 168.100.66.0
Netmask: 255.255.255.0 = 24
Inversion mask: 0.0.0.255
Binary: 10101000.01100100.01000010.00000000
Reserved: No
Result
Network: 168.100.66.0/24 (Class B)
First IP: 168.100.66.1
Last IP: 168.100.66.254
Broadcast: 168.100.66.255
Network range: 168.100.66.0 - 168.100.66.255
List of all IP addresses: 168_100_66_0-24.txt
Number of hosts: 254
Number of IP addresses: 256