Your IP address:
Provider:
...

For example: 18.219.236.62

/
Input
Address: 144.81.131.0
Netmask: 255.255.255.0 = 24
Inversion mask: 0.0.0.255
Binary: 10010000.01010001.10000011.00000000
Reserved: No
Result
Network: 144.81.131.0/24 (Class B)
First IP: 144.81.131.1
Last IP: 144.81.131.254
Broadcast: 144.81.131.255
Network range: 144.81.131.0 - 144.81.131.255
List of all IP addresses: 144_81_131_0-24.txt
Number of hosts: 254
Number of IP addresses: 256