Your IP address:
Provider:
...

For example: 3.16.218.62

/
Input
Address: 140.99.123.0
Netmask: 255.255.255.0 = 24
Inversion mask: 0.0.0.255
Binary: 10001100.01100011.01111011.00000000
Reserved: No
Result
Network: 140.99.123.0/24 (Class B)
First IP: 140.99.123.1
Last IP: 140.99.123.254
Broadcast: 140.99.123.255
Network range: 140.99.123.0 - 140.99.123.255
List of all IP addresses: 140_99_123_0-24.txt
Number of hosts: 254
Number of IP addresses: 256