Your IP address:
Provider:
...

For example: 3.21.93.44

/
Input
Address: 66.63.192.0
Netmask: 255.255.224.0 = 19
Inversion mask: 0.0.31.255
Binary: 01000010.00111111.11000000.00000000
Reserved: No
Result
Network: 66.63.192.0/19 (Class A)
First IP: 66.63.192.1
Last IP: 66.63.223.254
Broadcast: 66.63.223.255
Network range: 66.63.192.0 - 66.63.223.255
List of all IP addresses: 66_63_192_0-19.txt
Number of hosts: 8190
Number of IP addresses: 8192