An AWS Region is coming to France
For those in London wondering where is best for UK based customers, it seems, for London at least, this could be an improvement over Dublin (where Frankfurt is slower), as Paris is roughly 70 miles closer. Of course, depending on where / when [1] a UK-based data centre is released, I'd imagine that would be faster still.Currently Ireland vs. Frankfurt is (more data needed of course)[2]:  Europe (Ireland): 25 ms   27 ms   24 ms
  Europe (Frankfurt): 39 ms   39 ms   42 ms

And Frankfurt is about 100 miles further than Dublin.But for a quick test, this looks like a good tool: http://www.cloudping.info/Will be interested to test this once released to see UK / Paris vs. Dublin.[1] Article states UK region "due in coming months". No location announced?[2] Hitting ec2.eu-west-1.amazonaws.com vs. ec2.eu-central-1.amazonaws.com.