Your IP address:
Provider:
...

For example: 18.216.123.120

/
Input
Address: 208.71.209.0
Netmask: 255.255.255.0 = 24
Inversion mask: 0.0.0.255
Binary: 11010000.01000111.11010001.00000000
Reserved: No
Result
Network: 208.71.209.0/24 (Class C)
First IP: 208.71.209.1
Last IP: 208.71.209.254
Broadcast: 208.71.209.255
Network range: 208.71.209.0 - 208.71.209.255
List of all IP addresses: 208_71_209_0-24.txt
Number of hosts: 254
Number of IP addresses: 256