I work for IPinfo and we provided the data for the project. I would really appreciate your insight on this.
We run ping and traceroute operations from 1,200 servers across the world to every (within reason) IP address out there. So, we have ping RTT and traceroute data history of these measurements.
Considering the physical network topology does not match the physical network topology, we would love to hear your thoughts.
Unrouted IP addresses do not appear on the internet traffic, and we have limited network data for them.
If you can share your traceroute output and obfuscate as much data as possible, we will be happy to investigate and share feedback.