ekuhnke> I would caution against putting much faith in the validity of ekuhnke> geolocation or site ID by reverse DNS PTR records. There are a ekuhnke> vast number of unmaintained, ancient, stale, erroneous or ekuhnke> wildly wrong PTR records out there. I can name at least a half ekuhnke> dozen ISPs that have absorbed other ASes, some of those which ekuhnke> also acquired other ASes earlier in their history, forming a ekuhnke> turducken of obsolete PTR records that has things with ISP ekuhnke> domain names last in use in the year 2002. That's because the version of perl required to run the perl script that creates the ascii text PTR zone file is 4.x. perhaps? :) bryan> I still see references to UUNet in some reverse PTRs. bryan> So, uh, yeah. The uu.net PTRs should mostly have been service machines, like ns.uu.net, auth00.ns.uu.net (which horrifyingly do still resolve). Routers should have been in alter.net, which I do still see in traceroutes.