Your IP address:
Provider:
...

For example: 3.145.12.242

/
Input
Address: 204.75.186.0
Netmask: 255.255.254.0 = 23
Inversion mask: 0.0.1.255
Binary: 11001100.01001011.10111010.00000000
Reserved: No
Result
Network: 204.75.186.0/23 (Class C)
First IP: 204.75.186.1
Last IP: 204.75.187.254
Broadcast: 204.75.187.255
Network range: 204.75.186.0 - 204.75.187.255
List of all IP addresses: 204_75_186_0-23.txt
Number of hosts: 510
Number of IP addresses: 512