Your IP address:
Provider:
...

For example: 18.117.91.153

/
Input
Address: 63.249.128.0
Netmask: 255.255.128.0 = 17
Inversion mask: 0.0.127.255
Binary: 00111111.11111001.10000000.00000000
Reserved: No
Result
Network: 63.249.128.0/17 (Class A)
First IP: 63.249.128.1
Last IP: 63.249.255.254
Broadcast: 63.249.255.255
Network range: 63.249.128.0 - 63.249.255.255
List of all IP addresses: 63_249_128_0-17.txt
Number of hosts: 32766
Number of IP addresses: 32768