Where is my O365 mailbox hosted?

I was wondering as part of my testing on my private O365 tenancy, how I could find out where in the world my mailbox was being hosted.  It is actually relatively simple to do – all you need to do is open PowerShell and get a connection to Exchange Online:

If you run the single user command, you should get some nice output like the below:

Here I can see that the OrganizationId (American spelling 😉 ) begins with GBR, which you can probably make a guess that it is hosted within Great Britain.  I don’t know if there is a list that you can go and lookup for the originating area codes etc, but I would be interested to see this list if anyone can provide a link and I will update my blog post!