Just to put it into perspective..
I did a test with :
(great connection, california)
(obviously good connectivity, multiple datacenters over US)
nuub.valdosta.edu (my house, valdosta, ga)
arpa.com (servercentral.net, equinix chicago)
First place...<drumroll please>....my house. Ok, you know, I have my doubts that if I provide webhosting out of my house it'll be faster than the 3 above GOOD datacenters.
Second place..arpa.com (correct I'm sure, servercentral.net is 3 hops from 12 different GigE backbones i believe still)
Either way, my guess would be that this server is definately on the east coast, probably mid to southeast.
Just shows you how misleading the results could be.