Your IP address:
Provider:
...

For example: 216.73.216.99

/
Input
Address: 99.86.121.0
Netmask: 255.255.255.0 = 24
Inversion mask: 0.0.0.255
Binary: 01100011.01010110.01111001.00000000
Reserved: No
Result
Network: 99.86.121.0/24 (Class A)
First IP: 99.86.121.1
Last IP: 99.86.121.254
Broadcast: 99.86.121.255
Network range: 99.86.121.0 - 99.86.121.255
List of all IP addresses: 99_86_121_0-24.txt
Number of hosts: 254
Number of IP addresses: 256