Your IP address:
Provider:
...

For example: 13.58.244.216

/
Input
Address: 136.18.34.0
Netmask: 255.255.254.0 = 23
Inversion mask: 0.0.1.255
Binary: 10001000.00010010.00100010.00000000
Reserved: No
Result
Network: 136.18.34.0/23 (Class B)
First IP: 136.18.34.1
Last IP: 136.18.35.254
Broadcast: 136.18.35.255
Network range: 136.18.34.0 - 136.18.35.255
List of all IP addresses: 136_18_34_0-23.txt
Number of hosts: 510
Number of IP addresses: 512