That used to be true, when AWS only sold AZ-specific RIs, but for a long time now AWS have (by default) sold region-level RIs instead, and these do not include

That used to be true, when AWS only sold AZ-specific RIs, but for a long time now AWS have (by default) sold region-level RIs instead, and these do not include a capacity reservation. You can now purchase Capacity Reservations [0] on their own. https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-capacity-reservations.html https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-capa...