Your IP address:
Provider:
...

For example: 44.202.128.177

/
Input
Address: 99.151.152.0
Netmask: 255.255.248.0 = 21
Inversion mask: 0.0.7.255
Binary: 01100011.10010111.10011000.00000000
Reserved: No
Result
Network: 99.151.152.0/21 (Class A)
First IP: 99.151.152.1
Last IP: 99.151.159.254
Broadcast: 99.151.159.255
Network range: 99.151.152.0 - 99.151.159.255
List of all IP addresses: 99_151_152_0-21.txt
Number of hosts: 2046
Number of IP addresses: 2048