Viewing AWS account identifiers

AWS assigns the following unique identifiers to each AWS account:

AWS account ID

A 12-digit number, such as 012345678901, that uniquely identifies an AWS account. Many AWS resources include the account ID in their Amazon Resource Names (ARNs). The account ID portion distinguishes resources in one account from the resources in another account. If you're an AWS Identity and Access Management (IAM) user, you can sign in to the AWS Management Console using either the account ID or account alias. While account IDs, like any identifying information, should be used and shared carefully, they are not considered secret, sensitive, or confidential information.

Canonical user ID

An alpha-numeric identifier, such as 79a59df900b949e55d96a1e698fbacedfd6e09d98eacf8f8d5218e7cd47ef2be, that is an obfuscated form of the AWS account ID. You can use this ID to identify an AWS account when granting cross-account access to buckets and objects using Amazon Simple Storage Service (Amazon S3). You can retrieve the canonical user ID for your AWS account as either the root user or an IAM user.

You must be authenticated with AWS to view these identifiers.

Warning

Do not provide your AWS credentials (including passwords and access keys) to a third party that needs your AWS account identifiers to share AWS resources with you. Doing so would give them the same access to the AWS account that you have.

Finding your AWS account ID

You can find the AWS account ID using either the AWS Management Console or the AWS Command Line Interface (AWS CLI). In the console, the location of the account ID depends on whether you're signed in as the root user or an IAM user. The account ID is the same whether you're signed in as the root user or an IAM user.

Finding your account ID as the root user

 

• AWS Management Console
• AWS CLI & SDKs

To find your AWS account ID using the AWS CLI

Minimum permissions

To perform the following steps, you must have at least the following IAM permissions:

• When you run the command as the root user, you don't need any IAM permissions.

Use the get-caller-identity command as follows.

 

$ aws sts get-caller-identity \
    --query Account \
    --output text
123456789012