Your IP address:
Provider:
...

For example: 3.147.103.8

/
Input
Address: 74.221.131.0
Netmask: 255.255.255.0 = 24
Inversion mask: 0.0.0.255
Binary: 01001010.11011101.10000011.00000000
Reserved: No
Result
Network: 74.221.131.0/24 (Class A)
First IP: 74.221.131.1
Last IP: 74.221.131.254
Broadcast: 74.221.131.255
Network range: 74.221.131.0 - 74.221.131.255
List of all IP addresses: 74_221_131_0-24.txt
Number of hosts: 254
Number of IP addresses: 256