Your IP address:
Provider:
...

For example: 216.73.216.4

/
Input
Address: 64.18.139.0
Netmask: 255.255.255.0 = 24
Inversion mask: 0.0.0.255
Binary: 01000000.00010010.10001011.00000000
Reserved: No
Result
Network: 64.18.139.0/24 (Class A)
First IP: 64.18.139.1
Last IP: 64.18.139.254
Broadcast: 64.18.139.255
Network range: 64.18.139.0 - 64.18.139.255
List of all IP addresses: 64_18_139_0-24.txt
Number of hosts: 254
Number of IP addresses: 256