05-02 Amazon Resource Names ARN

Last updated Aug 17, 2023 Edit Source

Amazon Resource Names (ARN) uniquely identify AWS resources.
ARNs are required to specify a resource unambiguously across all of AWS.

ARNs follow any one of the formats below:

1. arn:partition:service:region:account-id:resource-id
2. arn:partition:service:region:account-id:resource-type/resource-id
3. arn:partition:service:region:account-id:resource-type:resource-id

• aws - AWS Region
• aws-cn - China Regions
• aws-us-gov - AWS GovCloud(US) Regions

identifies the service

• ec2
• s3
• iam

which aws resource

• us-east-1
• ca-central-1

Account ID
12 digit number ex.

• 012345678901

Resource ID
could be a number name or path:

• user/Bob
• instance/i-123456789