Your IP address:
Provider:
...

For example: 18.221.165.246

/
Input
Address: 99.87.64.0
Netmask: 255.255.192.0 = 18
Inversion mask: 0.0.63.255
Binary: 01100011.01010111.01000000.00000000
Reserved: No
Result
Network: 99.87.64.0/18 (Class A)
First IP: 99.87.64.1
Last IP: 99.87.127.254
Broadcast: 99.87.127.255
Network range: 99.87.64.0 - 99.87.127.255
List of all IP addresses: 99_87_64_0-18.txt
Number of hosts: 16382
Number of IP addresses: 16384