Source CIDR

Amazon CloudFront

Amazon CloudFront publishes a dedicated JSON endpoint of global and regional edge IP ranges, separate from the full AWS ip-ranges.json. Use this for origin-firewall allowlisting of CloudFront edge traffic.

Autonomous systems

AS16509 AS14618
Cloudflare Origin allowlisting with separate IPv4 and IPv6 edge lists. Fastly CDN edge IP API for origin protection. Akamai Origin IP ACL downloads and CDN firewall notes. Amazon Web Services The broader AWS ip-ranges.json service feed.