Your IP address:
Provider:
...

For example: 216.73.216.57

/
Input
Address: 159.26.128.0
Netmask: 255.255.240.0 = 20
Inversion mask: 0.0.15.255
Binary: 10011111.00011010.10000000.00000000
Reserved: No
Result
Network: 159.26.128.0/20 (Class B)
First IP: 159.26.128.1
Last IP: 159.26.143.254
Broadcast: 159.26.143.255
Network range: 159.26.128.0 - 159.26.143.255
List of all IP addresses: 159_26_128_0-20.txt
Number of hosts: 4094
Number of IP addresses: 4096