Your IP address:
Provider:
...

For example: 216.73.216.99

/
Input
Address: 217.217.224.0
Netmask: 255.255.240.0 = 20
Inversion mask: 0.0.15.255
Binary: 11011001.11011001.11100000.00000000
Reserved: No
Result
Network: 217.217.224.0/20 (Class C)
First IP: 217.217.224.1
Last IP: 217.217.239.254
Broadcast: 217.217.239.255
Network range: 217.217.224.0 - 217.217.239.255
List of all IP addresses: 217_217_224_0-20.txt
Number of hosts: 4094
Number of IP addresses: 4096