Your IP address:
Provider:
...

For example: 18.216.227.76

/
Input
Address: 208.71.208.0
Netmask: 255.255.254.0 = 23
Inversion mask: 0.0.1.255
Binary: 11010000.01000111.11010000.00000000
Reserved: No
Result
Network: 208.71.208.0/23 (Class C)
First IP: 208.71.208.1
Last IP: 208.71.209.254
Broadcast: 208.71.209.255
Network range: 208.71.208.0 - 208.71.209.255
List of all IP addresses: 208_71_208_0-23.txt
Number of hosts: 510
Number of IP addresses: 512