Your IP address:
Provider:
...

For example: 3.16.81.94

/
Input
Address: 18.89.128.0
Netmask: 255.255.192.0 = 18
Inversion mask: 0.0.63.255
Binary: 00010010.01011001.10000000.00000000
Reserved: No
Result
Network: 18.89.128.0/18 (Class A)
First IP: 18.89.128.1
Last IP: 18.89.191.254
Broadcast: 18.89.191.255
Network range: 18.89.128.0 - 18.89.191.255
List of all IP addresses: 18_89_128_0-18.txt
Number of hosts: 16382
Number of IP addresses: 16384