Your IP address:
Provider:
...

For example: 18.191.13.255

/
Input
Address: 23.251.228.0
Netmask: 255.255.252.0 = 22
Inversion mask: 0.0.3.255
Binary: 00010111.11111011.11100100.00000000
Reserved: No
Result
Network: 23.251.228.0/22 (Class A)
First IP: 23.251.228.1
Last IP: 23.251.231.254
Broadcast: 23.251.231.255
Network range: 23.251.228.0 - 23.251.231.255
List of all IP addresses: 23_251_228_0-22.txt
Number of hosts: 1022
Number of IP addresses: 1024