Your IP address:
Provider:
...

For example: 18.224.73.125

/
Input
Address: 15.197.4.0
Netmask: 255.255.252.0 = 22
Inversion mask: 0.0.3.255
Binary: 00001111.11000101.00000100.00000000
Reserved: No
Result
Network: 15.197.4.0/22 (Class A)
First IP: 15.197.4.1
Last IP: 15.197.7.254
Broadcast: 15.197.7.255
Network range: 15.197.4.0 - 15.197.7.255
List of all IP addresses: 15_197_4_0-22.txt
Number of hosts: 1022
Number of IP addresses: 1024