Comment by sgjohnson

> If you have ability to do traceroute from multiple probes sprinkled across the globe with known locations

Everyone who's aware of RIPE Atlas has that ability.

I have almost a billion RIPE Atlas credits. A single traceroute costs 60. I have enough credits to run several traceroutes on the entire IPv4 internet. (the smallest possible BGP announcement is /24, so max of 2^24 traceroutes, but in reality it's even less).