Your IP address:
Provider:
...

For example: 54.208.238.160

/
Input
Address: 52.18.0.0
Netmask: 255.254.0.0 = 15
Inversion mask: 0.1.255.255
Binary: 00110100.00010010.00000000.00000000
Reserved: No
Result
Network: 52.18.0.0/15 (Class A)
First IP: 52.18.0.1
Last IP: 52.19.255.254
Broadcast: 52.19.255.255
Network range: 52.18.0.0 - 52.19.255.255
Number of hosts: 131070
Number of IP addresses: 131072