Your IP address:
Provider:
...

For example: 54.210.83.20

/
Input
Address: 16.12.6.0
Netmask: 255.255.254.0 = 23
Inversion mask: 0.0.1.255
Binary: 00010000.00001100.00000110.00000000
Reserved: No
Result
Network: 16.12.6.0/23 (Class A)
First IP: 16.12.6.1
Last IP: 16.12.7.254
Broadcast: 16.12.7.255
Network range: 16.12.6.0 - 16.12.7.255
List of all IP addresses: 16_12_6_0-23.txt
Number of hosts: 510
Number of IP addresses: 512