Your IP address:
Provider:
...

For example: 18.116.36.192

/
Input
Address: 40.183.0.0
Netmask: 255.255.248.0 = 21
Inversion mask: 0.0.7.255
Binary: 00101000.10110111.00000000.00000000
Reserved: No
Result
Network: 40.183.0.0/21 (Class A)
First IP: 40.183.0.1
Last IP: 40.183.7.254
Broadcast: 40.183.7.255
Network range: 40.183.0.0 - 40.183.7.255
List of all IP addresses: 40_183_0_0-21.txt
Number of hosts: 2046
Number of IP addresses: 2048