Your IP address:
Provider:
...

For example: 52.54.103.76

/
Input
Address: 146.123.140.0
Netmask: 255.255.254.0 = 23
Inversion mask: 0.0.1.255
Binary: 10010010.01111011.10001100.00000000
Reserved: No
Result
Network: 146.123.140.0/23 (Class B)
First IP: 146.123.140.1
Last IP: 146.123.141.254
Broadcast: 146.123.141.255
Network range: 146.123.140.0 - 146.123.141.255
List of all IP addresses: 146_123_140_0-23.txt
Number of hosts: 510
Number of IP addresses: 512