Viewing Aggregators for AWS Config

Enter the following command:

aws configservice describe-configuration-aggregators

Depending on your source account you should see output similar to the following:

For individuals accounts

{
    "ConfigurationAggregators": [
        {
            "ConfigurationAggregatorArn": "arn:aws:config:Region:AccountID:config-aggregator/config-aggregator-floqpus3",
            "CreationTime": 1517942461.442,
            "ConfigurationAggregatorName": "MyAggregator",
            "AccountAggregationSources": [
                {
                    "AllAwsRegions": true,
                    "AccountIds": [
                        "AccountID1",
                        "AccountID2",
                        "AccountID3"
                    ]
                }
            ],
            "LastUpdatedTime": 1517942461.455
        }
    ]
}

OR

For an organization

{
    "ConfigurationAggregator": {
        "ConfigurationAggregatorArn": "arn:aws:config:Region:AccountID:config-aggregator/config-aggregator-floqpus3",
        "CreationTime": 1517942461.442,
        "ConfigurationAggregatorName": "MyAggregator",
        "OrganizationAggregationSource": {
                "AllAwsRegions": true,
                "RoleArn": "arn:aws:iam::account-of-role-to-assume:role/name-of-role"
         },
        "LastUpdatedTime": 1517942461.442
    }
}