Anecdotal, but afaik Blizzard uses AWS for Overwatch in the US. A friend who works as a systems engineer told me they hit some ridiculous cap on an AWS region a

Anecdotal, but afaik Blizzard uses AWS for Overwatch in the US. A friend who works as a systems engineer told me they hit some ridiculous cap on an AWS region a few years back and it caused issues for a bit.