AWS assigns the following unique identifiers to each AWS account:
- AWS account ID
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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
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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.
Find 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
To find your AWS account ID when signed in as the root user
Minimum permissions
To perform the following steps, you must have at least the following IAM permissions:
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When you sign in as the root user, you don't need any IAM permissions.
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In the navigation bar on the upper right, choose your account name or number and then choose Security credentials.
Tip
If you don't see the Security credentials option, you might be signed in as a federated user with an IAM role, instead of as an IAM user. In this case, look for the entry Account and the account ID number next to it.
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Under the Account details section, the account number appears next to AWS account ID.
Find your account ID as an IAM user
To find your AWS account ID when signed in as an IAM user
Minimum permissions
To perform the following steps, you must have at least the following IAM permissions:
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account:GetAccountInformation
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In the navigation bar on the upper right, choose your user name and then choose Security credentials.
Tip
If you don't see the Security credentials option, you might be signed in as a federated user with an IAM role, instead of as an IAM user. In this case, look for the entry Account and the account ID number next to it.
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At the top of the page, under Account details, the account number appears next to AWS account ID.
Find the canonical user ID for your
AWS account
You can find the canonical user ID for your AWS account using the AWS Management Console or the AWS CLI. The canonical user ID for an AWS account is specific to that account. You can retrieve the canonical user ID for your AWS account as the root user, a federated user, or an IAM user.
Find the canonical ID as the root user or IAM user
To find the canonical user ID for your account when signed in to the console as the root user or an IAM user
Minimum permissions
To perform the following steps, you must have at least the following IAM permissions:
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When you run the command as the root user, you don't need any IAM permissions.
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When you sign in as an IAM user, then you must have:
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account:GetAccountInformation
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Sign in to the AWS Management Console as the root user or an IAM user.
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In the navigation bar on the upper right, choose your account name or number and then choose Security credentials.
Tip
If you don't see the Security credentials option, you might be signed in as a federated user with an IAM role, instead of as an IAM user. In this case, look for the entry Account and the account ID number next to it.
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Under the Account details section, the canonical user ID appears next to Canonical user ID. You can use your canonical user ID to configure Amazon S3 access control lists (ACLs).
Find the canonical ID as a federated user with an IAM role
To find the canonical ID for your account when signed in to the console as a federated user with an IAM role
Minimum permissions
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You must have permission to list and view an Amazon S3 bucket.
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Sign in to the AWS Management Console as a federated user with an IAM role.
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In the Amazon S3 console, choose a bucket name to view details about a bucket.
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Choose the Permissions tab.
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In the Access control list section, under Bucket owner, the canonical ID for your AWS account appears.
