Your IP address:
Provider:
...

For example: 3.138.204.208

/
Input
Address: 107.21.64.0
Netmask: 255.255.192.0 = 18
Inversion mask: 0.0.63.255
Binary: 01101011.00010101.01000000.00000000
Reserved: No
Result
Network: 107.21.64.0/18 (Class A)
First IP: 107.21.64.1
Last IP: 107.21.127.254
Broadcast: 107.21.127.255
Network range: 107.21.64.0 - 107.21.127.255
List of all IP addresses: 107_21_64_0-18.txt
Number of hosts: 16382
Number of IP addresses: 16384