Your IP address:
Provider:
...

For example: 18.189.189.102

/
Input
Address: 207.221.0.0
Netmask: 255.255.224.0 = 19
Inversion mask: 0.0.31.255
Binary: 11001111.11011101.00000000.00000000
Reserved: No
Result
Network: 207.221.0.0/19 (Class C)
First IP: 207.221.0.1
Last IP: 207.221.31.254
Broadcast: 207.221.31.255
Network range: 207.221.0.0 - 207.221.31.255
List of all IP addresses: 207_221_0_0-19.txt
Number of hosts: 8190
Number of IP addresses: 8192