Your IP address:
Provider:
...

For example: 3.145.186.6

/
Input
Address: 209.46.72.0
Netmask: 255.255.248.0 = 21
Inversion mask: 0.0.7.255
Binary: 11010001.00101110.01001000.00000000
Reserved: No
Result
Network: 209.46.72.0/21 (Class C)
First IP: 209.46.72.1
Last IP: 209.46.79.254
Broadcast: 209.46.79.255
Network range: 209.46.72.0 - 209.46.79.255
List of all IP addresses: 209_46_72_0-21.txt
Number of hosts: 2046
Number of IP addresses: 2048