Create an Amazon Web Services account alias - Amazon Account Management
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Create an Amazon Web Services account alias

If you want the URL for your IAM users to contain your company name (or another easy-to-remember identifier) instead of the Amazon Web Services account ID, you can create an account alias.

To learn how to create or update an account alias, see Using an alias for your Amazon Web Services account ID in the IAM User Guide.