Your IP address:
Provider:
...

For example: 3.143.218.146

/
Input
Address: 65.17.0.0
Netmask: 255.255.128.0 = 17
Inversion mask: 0.0.127.255
Binary: 01000001.00010001.00000000.00000000
Reserved: No
Result
Network: 65.17.0.0/17 (Class A)
First IP: 65.17.0.1
Last IP: 65.17.127.254
Broadcast: 65.17.127.255
Network range: 65.17.0.0 - 65.17.127.255
List of all IP addresses: 65_17_0_0-17.txt
Number of hosts: 32766
Number of IP addresses: 32768