Your IP address:
Provider:
...

For example: 216.73.216.4

/
Input
Address: 173.213.28.0
Netmask: 255.255.252.0 = 22
Inversion mask: 0.0.3.255
Binary: 10101101.11010101.00011100.00000000
Reserved: No
Result
Network: 173.213.28.0/22 (Class B)
First IP: 173.213.28.1
Last IP: 173.213.31.254
Broadcast: 173.213.31.255
Network range: 173.213.28.0 - 173.213.31.255
List of all IP addresses: 173_213_28_0-22.txt
Number of hosts: 1022
Number of IP addresses: 1024