Your IP address:
Provider:
...

For example: 3.15.171.202

/
Input
Address: 129.33.239.0
Netmask: 255.255.255.0 = 24
Inversion mask: 0.0.0.255
Binary: 10000001.00100001.11101111.00000000
Reserved: No
Result
Network: 129.33.239.0/24 (Class B)
First IP: 129.33.239.1
Last IP: 129.33.239.254
Broadcast: 129.33.239.255
Network range: 129.33.239.0 - 129.33.239.255
List of all IP addresses: 129_33_239_0-24.txt
Number of hosts: 254
Number of IP addresses: 256