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[Announcement] Amazon CloudFront IP Ranges Are Now Available in JSON Format

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Dear Amazon CloudFront Customers,

From time to time we receive requests for the list of CloudFront IP address ranges. The CloudFront IP addresses change frequently and we cannot guarantee advance notice of changes. On a best-effort basis, we will provide the list of current addresses. Customers should not use these addresses for mission critical applications and must never hard code them in DNS names.

AWS now publishes its current IP address ranges in JSON format. To view the current CloudFront ranges, download the .json file using the following link.

Download: ip-ranges.json

To extract the CloudFront ranges, filter the file using the value "CLOUDFRONT" for the “service” field. If you access this file programmatically, it is your responsibility to ensure that the application downloads the file only after successfully verifying the TLS certificate presented by the server.

For more information, see the following documentation: AWS IP Address Ranges.

Thank You,

The Amazon CloudFront Team

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