Why? Once your in a shard, does it matter where the Shard is? If they were shuffling the character between sever farms that would be different. Multiple OC192 and OC384 connections between servers could even have shards spread geographically.
Besides, your Google or Yahoo search does not go to the same server farm each time you make a request. It goes to the server that is best suited to answer your question, and that can be a different one each time depending on load, routing etc.
It might be in a specific location, but technically, it does not have to be.
As for the Static IP, that can be a pointer or a scheduler or some other management server that is not the server doing the heavy lifting of the game.