They've updated it to

>North America (Ashburn (BWI), Ashburn (DCA), Ashburn (IAD)), Europe (Amsterdam (AMS)), and Asia/Pacific (Hong Kong (HKG), Tokyo (TYO), Singapore (QPG)).

MAD affected, not on the list. I assume it is all locations.

I've seen errors return to me referencing a LON (London I assume) server - Details: cache-lon4238-LON for example

Auckland (AKL) is affected but not on the list.

Seems like they are still taking stock of exactly what is broken.

It has now been updated to a pretty sizable list.

edit: And now it looks like it includes every location.