Your IP address:
Provider:
...

For example: 3.16.147.124

/
Input
Address: 72.5.220.0
Netmask: 255.255.252.0 = 22
Inversion mask: 0.0.3.255
Binary: 01001000.00000101.11011100.00000000
Reserved: No
Result
Network: 72.5.220.0/22 (Class A)
First IP: 72.5.220.1
Last IP: 72.5.223.254
Broadcast: 72.5.223.255
Network range: 72.5.220.0 - 72.5.223.255
List of all IP addresses: 72_5_220_0-22.txt
Number of hosts: 1022
Number of IP addresses: 1024