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by fabioyy
1007 days ago
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a long time ago i build a project like that
but instead of relying on whois. i did a traceroute to every ipv4 address avaliable.
several router hops, have a reverse dns that uses some names that include city codes, (like airport codes ).
most providers have a single hop for a city. so its easy to correlate the latest router hop to a city. |
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