Your IP address:
Provider:
...

For example: 18.191.223.123

/
Input
Address: 159.99.64.0
Netmask: 255.255.240.0 = 20
Inversion mask: 0.0.15.255
Binary: 10011111.01100011.01000000.00000000
Reserved: No
Result
Network: 159.99.64.0/20 (Class B)
First IP: 159.99.64.1
Last IP: 159.99.79.254
Broadcast: 159.99.79.255
Network range: 159.99.64.0 - 159.99.79.255
List of all IP addresses: 159_99_64_0-20.txt
Number of hosts: 4094
Number of IP addresses: 4096