Niels Bohr Institute AS1835. http://www.nbi.dk/cgi-bin/traceroute.pl

Tele Danmark Internet Data Division AS3292. http://trace.tele.dk/cgi-bin/nph-first

UNI2 AS5492. http://webtrace.uni2.net/

VisualRoute Traceroute Servers Worldwide VisualRoute Server is installed on many servers around the world, providing a graphical presentation of IP routing connections, and network backbone information. http://www.visualware.com/visualroute/livedemo.html