Your IP address:
Provider:
...

For example: 18.188.142.146

/
Input
Address: 144.81.136.0
Netmask: 255.255.252.0 = 22
Inversion mask: 0.0.3.255
Binary: 10010000.01010001.10001000.00000000
Reserved: No
Result
Network: 144.81.136.0/22 (Class B)
First IP: 144.81.136.1
Last IP: 144.81.139.254
Broadcast: 144.81.139.255
Network range: 144.81.136.0 - 144.81.139.255
List of all IP addresses: 144_81_136_0-22.txt
Number of hosts: 1022
Number of IP addresses: 1024