Your IP address:
Provider:
...

For example: 54.174.225.82

/
Input
Address: 3.5.6.0
Netmask: 255.255.254.0 = 23
Inversion mask: 0.0.1.255
Binary: 00000011.00000101.00000110.00000000
Reserved: No
Result
Network: 3.5.6.0/23 (Class A)
First IP: 3.5.6.1
Last IP: 3.5.7.254
Broadcast: 3.5.7.255
Network range: 3.5.6.0 - 3.5.7.255
List of all IP addresses: 3_5_6_0-23.txt
Number of hosts: 510
Number of IP addresses: 512