# Identifying a shared AWS Cloud Map namespace
<a name="sharing-identify"></a>

Owners and consumers can identify shared namespaces using the AWS Cloud Map console and AWS CLI. The namespace owner can be identified by using the `ResourceOwner` property. The AWS account that creates a service or registers an instance in the shared namespace can be identified by using the `CreatedByAccount` property.

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#### [ AWS Cloud Map console ]

**To identify a shared namespace using the AWS Cloud Map console**

1. Sign in to the AWS Management Console and open the AWS Cloud Map console at [https://console.aws.amazon.com/cloudmap/](https://console.aws.amazon.com/cloudmap/).

1. On the **Namespaces** page, under **Resource Owner**, you can find the ID of the AWS account that owns the namespace.

1. Choose the **Domain name** of the namespace you want to identify.

1. On the **Namespace: *namespace-name*** page, in the **Namespace information** section, under **Resource owner**, you can find the ID of the AWS account that owns the namespace.

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#### [ AWS CLI ]

To identify a shared namespace using the AWS CLI, use the [list-namespaces](https://docs.aws.amazon.com/cli/latest/reference/servicediscovery/list-namespaces.html) command. The command returns the namespaces that you own and namespaces that are shared with you. The `ResourceOwner` field shows the AWS account ID of the namespace owner.

The following `list-namespaces` call is made by account `111122223333`.

```
aws servicediscovery list-namespaces
```

Output:

```
{
    "Namespaces": [
        {
            "Arn": "arn:aws:servicediscovery:us-west-2:111122223333:namespace/ns-abcdef01234567890",
            "CreateDate": 1585354387.357,
            "Id": "ns-abcdef01234567890",
            "Name": "local",
            "Properties": {
                "DnsProperties": {
                    "HostedZoneId": "Z06752353VBUDTC32S84S"
                },
                "HttpProperties": {
                    "HttpName": "local"
                 }
            },
            "Type": "DNS_PRIVATE",
            "ServiceCount": 2,
           "ResourceOwner": "111122223333"
        },
        {
            "Arn": "arn:aws:servicediscovery:us-west-2:444455556666:namespace/ns-021345abcdef6789",
            "CreateDate": 1586468974.698,
            "Description": "Shared second namespace",
            "Id": "ns-021345abcdef6789",
            "Name": "My-second-namespace",
            "Properties": {
                "DnsProperties": {},
                "HttpProperties": {
                    "HttpName": "Shared-second-namespace"
                }
            },
            "Type": "HTTP",
            "ServiceCount": 0,
            "ResourceOwner": "444455556666"
        }
    ]
}
```

In this scenario, namespace `ns-abcdef01234567890` is created and owned by `111122223333` and namespace `ns-021345abcdef6789` is created and owned by `444455556666`. Namespace `ns-021345abcdef6789` is shared with account `111122223333` by account `444455556666`.

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