Your IP address:
Provider:
...

For example: 18.222.182.105

/
Input
Address: 137.83.206.0
Netmask: 255.255.254.0 = 23
Inversion mask: 0.0.1.255
Binary: 10001001.01010011.11001110.00000000
Reserved: No
Result
Network: 137.83.206.0/23 (Class B)
First IP: 137.83.206.1
Last IP: 137.83.207.254
Broadcast: 137.83.207.255
Network range: 137.83.206.0 - 137.83.207.255
List of all IP addresses: 137_83_206_0-23.txt
Number of hosts: 510
Number of IP addresses: 512