Get the ARN of an organization or organizational unit

The organization and the organizational unit ARNs contain the 12-digit management account number. If you don't know the management account number, you can describe the organization and the organizational unit to get the ARN for each. In the following examples, 123456789012 is the account ID of the management account.

Required permissions

Before you can get the ARNs, you must have the permission to describe organizations and organizational units. The following policy provides the necessary permission.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "organizations:Describe*"
            ],
            "Resource": "*"
        }
    ]
}