Your IP address:
Provider:
...

For example: 52.14.142.189

/
Input
Address: 99.77.240.0
Netmask: 255.255.252.0 = 22
Inversion mask: 0.0.3.255
Binary: 01100011.01001101.11110000.00000000
Reserved: No
Result
Network: 99.77.240.0/22 (Class A)
First IP: 99.77.240.1
Last IP: 99.77.243.254
Broadcast: 99.77.243.255
Network range: 99.77.240.0 - 99.77.243.255
List of all IP addresses: 99_77_240_0-22.txt
Number of hosts: 1022
Number of IP addresses: 1024