Your IP address:
Provider:
...

For example: 3.128.79.88

/
Input
Address: 40.208.0.0
Netmask: 255.255.0.0 = 16
Inversion mask: 0.0.255.255
Binary: 00101000.11010000.00000000.00000000
Reserved: No
Result
Network: 40.208.0.0/16 (Class A)
First IP: 40.208.0.1
Last IP: 40.208.255.254
Broadcast: 40.208.255.255
Network range: 40.208.0.0 - 40.208.255.255
List of all IP addresses: 40_208_0_0-16.txt
Number of hosts: 65534
Number of IP addresses: 65536