The IP address 172.29.136.12 : 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 172.29.136.12 detail
The IP address 172.29.136.12 (IPv4 Class B networks) belonging to the network 172.16.0.0 - 172.31.255.255 is written in long version -1407350772.
Color obtained mathematically from the IP address: Warm purple
Addresses on the same network : 172.29.136.0 172.29.136.1 172.29.136.2 172.29.136.3 172.29.136.4 172.29.136.5 172.29.136.6 172.29.136.7 172.29.136.8 172.29.136.9 172.29.136.10 172.29.136.20 172.29.136.30 172.29.136.40 172.29.136.50 172.29.136.60 172.29.136.70 172.29.136.80 172.29.136.90 172.29.136.100 172.29.136.200 172.29.136.254 172.29.136.255