Your IP address:
Provider:
...

For example: 3.137.161.222

/
Input
Address: 16.12.4.0
Netmask: 255.255.252.0 = 22
Inversion mask: 0.0.3.255
Binary: 00010000.00001100.00000100.00000000
Reserved: No
Result
Network: 16.12.4.0/22 (Class A)
First IP: 16.12.4.1
Last IP: 16.12.7.254
Broadcast: 16.12.7.255
Network range: 16.12.4.0 - 16.12.7.255
List of all IP addresses: 16_12_4_0-22.txt
Number of hosts: 1022
Number of IP addresses: 1024