Your IP address:
Provider:
...

For example: 216.73.216.57

/
Input
Address: 129.41.3.0
Netmask: 255.255.255.0 = 24
Inversion mask: 0.0.0.255
Binary: 10000001.00101001.00000011.00000000
Reserved: No
Result
Network: 129.41.3.0/24 (Class B)
First IP: 129.41.3.1
Last IP: 129.41.3.254
Broadcast: 129.41.3.255
Network range: 129.41.3.0 - 129.41.3.255
List of all IP addresses: 129_41_3_0-24.txt
Number of hosts: 254
Number of IP addresses: 256