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Amazon S3 introduces account regional namespaces for general purpose buckets

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This article announces account regional namespaces for Amazon S3 general purpose buckets, enabling predictable, reserved bucket naming within AWS accounts.

  • Create S3 buckets in reserved account regional namespaces without global uniqueness requirements
  • Simplifies bucket-per-customer, team, or dataset architectures
  • Predictable bucket names available across multiple AWS Regions
  • Use new namespace request header in CreateBucket API or CloudFormation templates
  • Enforce consistent naming via SCPs and IAM policies
  • Available in 37 AWS Regions including China and GovCloud at no additional cost

Account regional namespaces eliminate global bucket name conflicts, simplifying S3 management at scale.

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