Your IP address:
Provider:
...

For example: 54.162.124.193

/
Input
Address: 54.206.0.0
Netmask: 255.255.128.0 = 17
Inversion mask: 0.0.127.255
Binary: 00110110.11001110.00000000.00000000
Reserved: No
Result
Network: 54.206.0.0/17 (Class A)
First IP: 54.206.0.1
Last IP: 54.206.127.254
Broadcast: 54.206.127.255
Network range: 54.206.0.0 - 54.206.127.255
List of all IP addresses: 54_206_0_0-17.txt
Number of hosts: 32766
Number of IP addresses: 32768