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Try looking on the Cogent and Verio websites. Usually providers list their maps for all to see in terms of connectivity.
The map can be whatever the ISP wants it to read like, when I state that, my meaning is that the ISP's may have lines that are planned for the future in there as well as current offerings. I know this from working at ISP's. What is really there can be different from what is on the map in SOME instances. THis is the truth........
You can check out Boardwatch's site, Keynote, etc to see performance tests under a variety of conditions, to see the interaction from backbone to backbone, you can trace across a few networks from traceroute.org.
I would suggest talk to read as much info as possible that you can find from searches, publications, and sites that deal with the metrics of each ISP to get a well rounded opinion.
Off to slice it up
Herb K
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