We currently have the following test servers running, in Seattle, WA, Los Angeles, CA, Dallas, TX, New York, New York, Chicago, IL, and Amsterdam, NL
Seattle - wa.minecraftserver.net
Los Angeles - la.minecraftserver.net
Dallas - tx.minecraftserver.net
New York - ny.minecraftserver.net
Chicago - ch.minecraftserver.net
Amsterdam - nl.minecraftserver.net
We recommend users from Australia to use our Los Angeles or Seattle server as they seem to have better connectivity to that server.
You don't have to live in that state to be able to run a server you can live in different states and still play as we run our servers on top tier networks.
Our test servers are running on our Dirt plan which has 512Mb of dedicated Ram.