The IP address 192.168.166.9 : Class C Networks
Secure IP address This IP is only local, it is not accessible from outside the network
Rating: 5
This means that the IP address is not accessible from the Internet, it is local and only accessible within the network. Everyone has the same local address (192.168.0.0 - 192.168.255.255).
Each device (laptop, printer, scanner, phone, surveillance camera, tablet, ...) has a unique local IP address assigned by the adsl box that allows the box to identify the different devices to within a local network and send the right product at the right flow.
Specifically, the adsl box has a public IP address in your case, which connects to the Internet and the box assigns a local address to all devices to identify them.
The IP address 192.168.166.9 detail
The IP address 192.168.166.9 (IPv4 Class C Networks) belonging to the network 192.168.0.0 - 192.168.255.255 is written in long version -1062689271.
Color obtained mathematically from the IP address: Pinkish grey
Addresses on the same network : 192.168.166.0 192.168.166.1 192.168.166.2 192.168.166.3 192.168.166.4 192.168.166.5 192.168.166.6 192.168.166.7 192.168.166.8 192.168.166.10 192.168.166.20 192.168.166.30 192.168.166.40 192.168.166.50 192.168.166.60 192.168.166.70 192.168.166.80 192.168.166.90 192.168.166.100 192.168.166.200 192.168.166.254 192.168.166.255