The IP address 172.18.254.90 : 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 172.18.254.90 detail
The IP address 172.18.254.90 (IPv4 Class B networks) belonging to the network 172.16.0.0 - 172.31.255.255 is written in long version -1408041382.
Color obtained mathematically from the IP address: Bright violet
Addresses on the same network : 172.18.254.0 172.18.254.1 172.18.254.2 172.18.254.3 172.18.254.4 172.18.254.5 172.18.254.6 172.18.254.7 172.18.254.8 172.18.254.9 172.18.254.10 172.18.254.20 172.18.254.30 172.18.254.40 172.18.254.50 172.18.254.60 172.18.254.70 172.18.254.80 172.18.254.100 172.18.254.200 172.18.254.254 172.18.254.255