Your IP address:
Provider:
...

For example: 18.221.187.121

/
Input
Address: 108.138.152.0
Netmask: 255.255.248.0 = 21
Inversion mask: 0.0.7.255
Binary: 01101100.10001010.10011000.00000000
Reserved: No
Result
Network: 108.138.152.0/21 (Class A)
First IP: 108.138.152.1
Last IP: 108.138.159.254
Broadcast: 108.138.159.255
Network range: 108.138.152.0 - 108.138.159.255
List of all IP addresses: 108_138_152_0-21.txt
Number of hosts: 2046
Number of IP addresses: 2048