Your IP address:
Provider:
...

For example: 3.144.17.45

/
Input
Address: 15.248.72.0
Netmask: 255.255.252.0 = 22
Inversion mask: 0.0.3.255
Binary: 00001111.11111000.01001000.00000000
Reserved: No
Result
Network: 15.248.72.0/22 (Class A)
First IP: 15.248.72.1
Last IP: 15.248.75.254
Broadcast: 15.248.75.255
Network range: 15.248.72.0 - 15.248.75.255
List of all IP addresses: 15_248_72_0-22.txt
Number of hosts: 1022
Number of IP addresses: 1024