Your IP address:
Provider:
...

For example: 3.89.56.228

/
Input
Address: 108.139.12.0
Netmask: 255.255.252.0 = 22
Inversion mask: 0.0.3.255
Binary: 01101100.10001011.00001100.00000000
Reserved: No
Result
Network: 108.139.12.0/22 (Class A)
First IP: 108.139.12.1
Last IP: 108.139.15.254
Broadcast: 108.139.15.255
Network range: 108.139.12.0 - 108.139.15.255
List of all IP addresses: 108_139_12_0-22.txt
Number of hosts: 1022
Number of IP addresses: 1024