Your IP address:
Provider:
...

For example: 216.73.216.51

/
Input
Address: 158.26.168.0
Netmask: 255.255.248.0 = 21
Inversion mask: 0.0.7.255
Binary: 10011110.00011010.10101000.00000000
Reserved: No
Result
Network: 158.26.168.0/21 (Class B)
First IP: 158.26.168.1
Last IP: 158.26.175.254
Broadcast: 158.26.175.255
Network range: 158.26.168.0 - 158.26.175.255
List of all IP addresses: 158_26_168_0-21.txt
Number of hosts: 2046
Number of IP addresses: 2048