Your IP address:
Provider:
...

For example: 3.238.64.201

/
Input
Address: 13.33.10.0
Netmask: 255.255.254.0 = 23
Inversion mask: 0.0.1.255
Binary: 00001101.00100001.00001010.00000000
Reserved: No
Result
Network: 13.33.10.0/23 (Class A)
First IP: 13.33.10.1
Last IP: 13.33.11.254
Broadcast: 13.33.11.255
Network range: 13.33.10.0 - 13.33.11.255
List of all IP addresses: 13_33_10_0-23.txt
Number of hosts: 510
Number of IP addresses: 512