Your IP address:
Provider:
...

For example: 3.23.101.60

/
Input
Address: 18.34.5.0
Netmask: 255.255.255.0 = 24
Inversion mask: 0.0.0.255
Binary: 00010010.00100010.00000101.00000000
Reserved: No
Result
Network: 18.34.5.0/24 (Class A)
First IP: 18.34.5.1
Last IP: 18.34.5.254
Broadcast: 18.34.5.255
Network range: 18.34.5.0 - 18.34.5.255
List of all IP addresses: 18_34_5_0-24.txt
Number of hosts: 254
Number of IP addresses: 256