Your IP address:
Provider:
...

For example: 3.226.254.255

/
Input
Address: 3.219.0.0
Netmask: 255.255.0.0 = 16
Inversion mask: 0.0.255.255
Binary: 00000011.11011011.00000000.00000000
Reserved: No
Result
Network: 3.219.0.0/16 (Class A)
First IP: 3.219.0.1
Last IP: 3.219.255.254
Broadcast: 3.219.255.255
Network range: 3.219.0.0 - 3.219.255.255
List of all IP addresses: 3_219_0_0-16.txt
Number of hosts: 65534
Number of IP addresses: 65536