Your IP address:
Provider:
...

For example: 18.216.123.120

/
Input
Address: 136.18.4.0
Netmask: 255.255.252.0 = 22
Inversion mask: 0.0.3.255
Binary: 10001000.00010010.00000100.00000000
Reserved: No
Result
Network: 136.18.4.0/22 (Class B)
First IP: 136.18.4.1
Last IP: 136.18.7.254
Broadcast: 136.18.7.255
Network range: 136.18.4.0 - 136.18.7.255
List of all IP addresses: 136_18_4_0-22.txt
Number of hosts: 1022
Number of IP addresses: 1024