The IP address 172.17.99.80 : Class B 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 (172.16.0.0 - 172.31.255.255).
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 172.17.99.80 detail
The IP address 172.17.99.80 (IPv4 Class B networks) belonging to the network 172.16.0.0 - 172.31.255.255 is written in long version -1408146608.
Color obtained mathematically from the IP address: Deep magenta
Addresses on the same network : 172.17.99.0 172.17.99.1 172.17.99.2 172.17.99.3 172.17.99.4 172.17.99.5 172.17.99.6 172.17.99.7 172.17.99.8 172.17.99.9 172.17.99.10 172.17.99.20 172.17.99.30 172.17.99.40 172.17.99.50 172.17.99.60 172.17.99.70 172.17.99.90 172.17.99.100 172.17.99.200 172.17.99.254 172.17.99.255