Your IP address:
Provider:
...

For example: 18.119.159.150

/
Input
Address: 161.51.99.0
Netmask: 255.255.255.0 = 24
Inversion mask: 0.0.0.255
Binary: 10100001.00110011.01100011.00000000
Reserved: No
Result
Network: 161.51.99.0/24 (Class B)
First IP: 161.51.99.1
Last IP: 161.51.99.254
Broadcast: 161.51.99.255
Network range: 161.51.99.0 - 161.51.99.255
List of all IP addresses: 161_51_99_0-24.txt
Number of hosts: 254
Number of IP addresses: 256