Per the spreadsheet here https://awsmaniac.com/aws-outages/ https://awsmaniac.com/aws-outages/ : There seem to have been multiple "full" outages in 2011-12 in

Per the spreadsheet here https://awsmaniac.com/aws-outages/ https://awsmaniac.com/aws-outages/ : There seem to have been multiple "full" outages in 2011-12 in AWS' us-east-1 region, which, granted, is the oldest AWS region and likely has a bunch of legacy stuff. By "full" outages I mean that a few core services fell over but the entire region become inaccessible due to those core failures.