The IP address 172.19.139.255 : 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 172.19.139.255 detail
The IP address 172.19.139.255 (IPv4 Class B networks) belonging to the network 172.16.0.0 - 172.31.255.255 is written in long version -1408005121.
Color obtained mathematically from the IP address: Barney purple
Addresses on the same network : 172.19.139.0 172.19.139.1 172.19.139.2 172.19.139.3 172.19.139.4 172.19.139.5 172.19.139.6 172.19.139.7 172.19.139.8 172.19.139.9 172.19.139.10 172.19.139.20 172.19.139.30 172.19.139.40 172.19.139.50 172.19.139.60 172.19.139.70 172.19.139.80 172.19.139.90 172.19.139.100 172.19.139.200 172.19.139.254