Your IP address:
Provider:
...

For example: 3.23.101.60

/
Input
Address: 206.253.200.0
Netmask: 255.255.248.0 = 21
Inversion mask: 0.0.7.255
Binary: 11001110.11111101.11001000.00000000
Reserved: No
Result
Network: 206.253.200.0/21 (Class C)
First IP: 206.253.200.1
Last IP: 206.253.207.254
Broadcast: 206.253.207.255
Network range: 206.253.200.0 - 206.253.207.255
List of all IP addresses: 206_253_200_0-21.txt
Number of hosts: 2046
Number of IP addresses: 2048