Check when an Amazon EC2 AMI was last used
Amazon EC2 keeps track of the date and time when your AMI was last used to launch an instance. If you have an AMI that has not been used to launch an instance in a long time, consider whether the AMI is a good candidate for deregistration or deprecation.
Considerations
-
When the AMI is used to launch an instance, there is a 24-hour delay before that usage is reported.
-
You must be the owner of the AMI to get the last launched time.
-
This data about AMI usage is available starting April 2017.