Your IP address:
Provider:
...

For example: 3.145.36.10

/
Input
Address: 76.223.168.0
Netmask: 255.255.248.0 = 21
Inversion mask: 0.0.7.255
Binary: 01001100.11011111.10101000.00000000
Reserved: No
Result
Network: 76.223.168.0/21 (Class A)
First IP: 76.223.168.1
Last IP: 76.223.175.254
Broadcast: 76.223.175.255
Network range: 76.223.168.0 - 76.223.175.255
List of all IP addresses: 76_223_168_0-21.txt
Number of hosts: 2046
Number of IP addresses: 2048