Your IP address:
Provider:
...

For example: 3.88.254.50

/
Input
Address: 34.224.0.0
Netmask: 255.240.0.0 = 12
Inversion mask: 0.15.255.255
Binary: 00100010.11100000.00000000.00000000
Reserved: No
Result
Network: 34.224.0.0/12 (Class A)
First IP: 34.224.0.1
Last IP: 34.239.255.254
Broadcast: 34.239.255.255
Network range: 34.224.0.0 - 34.239.255.255
Number of hosts: 1048574
Number of IP addresses: 1048576