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by master_crab 995 days ago
My one issue with this is if it’s such a large lift, why burn the effort to just kick the can down the road? IPv6 has to happen at some point (and for AWS that point is sooner than most).

The better reason is the regionalization was probably a way to decrease blast radius in case of a service failure.

Also, AWS definitely did not regionalize all their services in 2016. IAM and certainly not DNS/Rte53 (part of the reason why they had their massive failure in US East 1 2-3 years ago)