Your IP address:
Provider:
...

For example: 3.129.210.17

/
Input
Address: 216.99.134.0
Netmask: 255.255.254.0 = 23
Inversion mask: 0.0.1.255
Binary: 11011000.01100011.10000110.00000000
Reserved: No
Result
Network: 216.99.134.0/23 (Class C)
First IP: 216.99.134.1
Last IP: 216.99.135.254
Broadcast: 216.99.135.255
Network range: 216.99.134.0 - 216.99.135.255
List of all IP addresses: 216_99_134_0-23.txt
Number of hosts: 510
Number of IP addresses: 512