Your IP address:
Provider:
...

For example: 3.143.168.172

/
Input
Address: 168.149.240.0
Netmask: 255.255.254.0 = 23
Inversion mask: 0.0.1.255
Binary: 10101000.10010101.11110000.00000000
Reserved: No
Result
Network: 168.149.240.0/23 (Class B)
First IP: 168.149.240.1
Last IP: 168.149.241.254
Broadcast: 168.149.241.255
Network range: 168.149.240.0 - 168.149.241.255
List of all IP addresses: 168_149_240_0-23.txt
Number of hosts: 510
Number of IP addresses: 512