Your IP address:
Provider:
...

For example: 3.21.248.119

/
Input
Address: 155.41.0.0
Netmask: 255.255.128.0 = 17
Inversion mask: 0.0.127.255
Binary: 10011011.00101001.00000000.00000000
Reserved: No
Result
Network: 155.41.0.0/17 (Class B)
First IP: 155.41.0.1
Last IP: 155.41.127.254
Broadcast: 155.41.127.255
Network range: 155.41.0.0 - 155.41.127.255
List of all IP addresses: 155_41_0_0-17.txt
Number of hosts: 32766
Number of IP addresses: 32768