Your IP address:
Provider:
...

For example: 18.217.208.72

/
Input
Address: 3.218.192.0
Netmask: 255.255.192.0 = 18
Inversion mask: 0.0.63.255
Binary: 00000011.11011010.11000000.00000000
Reserved: No
Result
Network: 3.218.192.0/18 (Class A)
First IP: 3.218.192.1
Last IP: 3.218.255.254
Broadcast: 3.218.255.255
Network range: 3.218.192.0 - 3.218.255.255
List of all IP addresses: 3_218_192_0-18.txt
Number of hosts: 16382
Number of IP addresses: 16384