Your IP address:
Provider:
...

For example: 216.73.216.57

/
Input
Address: 16.15.224.0
Netmask: 255.255.248.0 = 21
Inversion mask: 0.0.7.255
Binary: 00010000.00001111.11100000.00000000
Reserved: No
Result
Network: 16.15.224.0/21 (Class A)
First IP: 16.15.224.1
Last IP: 16.15.231.254
Broadcast: 16.15.231.255
Network range: 16.15.224.0 - 16.15.231.255
List of all IP addresses: 16_15_224_0-21.txt
Number of hosts: 2046
Number of IP addresses: 2048