Your IP address:
Provider:
...

For example: 18.223.125.219

/
Input
Address: 157.254.2.0
Netmask: 255.255.254.0 = 23
Inversion mask: 0.0.1.255
Binary: 10011101.11111110.00000010.00000000
Reserved: No
Result
Network: 157.254.2.0/23 (Class B)
First IP: 157.254.2.1
Last IP: 157.254.3.254
Broadcast: 157.254.3.255
Network range: 157.254.2.0 - 157.254.3.255
List of all IP addresses: 157_254_2_0-23.txt
Number of hosts: 510
Number of IP addresses: 512