Your IP address:
Provider:
...

For example: 216.73.216.57

/
Input
Address: 138.101.22.0
Netmask: 255.255.254.0 = 23
Inversion mask: 0.0.1.255
Binary: 10001010.01100101.00010110.00000000
Reserved: No
Result
Network: 138.101.22.0/23 (Class B)
First IP: 138.101.22.1
Last IP: 138.101.23.254
Broadcast: 138.101.23.255
Network range: 138.101.22.0 - 138.101.23.255
List of all IP addresses: 138_101_22_0-23.txt
Number of hosts: 510
Number of IP addresses: 512