The IP address 172.23.38.40 : 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 172.23.38.40 detail
The IP address 172.23.38.40 (IPv4 Class B networks) belonging to the network 172.16.0.0 - 172.31.255.255 is written in long version -1407769048.
Color obtained mathematically from the IP address: Rouge
Addresses on the same network : 172.23.38.0 172.23.38.1 172.23.38.2 172.23.38.3 172.23.38.4 172.23.38.5 172.23.38.6 172.23.38.7 172.23.38.8 172.23.38.9 172.23.38.10 172.23.38.20 172.23.38.30 172.23.38.50 172.23.38.60 172.23.38.70 172.23.38.80 172.23.38.90 172.23.38.100 172.23.38.200 172.23.38.254 172.23.38.255