Your IP address:
Provider:
...

For example: 18.221.15.15

/
Input
Address: 216.15.156.0
Netmask: 255.255.252.0 = 22
Inversion mask: 0.0.3.255
Binary: 11011000.00001111.10011100.00000000
Reserved: No
Result
Network: 216.15.156.0/22 (Class C)
First IP: 216.15.156.1
Last IP: 216.15.159.254
Broadcast: 216.15.159.255
Network range: 216.15.156.0 - 216.15.159.255
List of all IP addresses: 216_15_156_0-22.txt
Number of hosts: 1022
Number of IP addresses: 1024