Source CIDR

Akamai

For Origin IP ACL, Akamai publishes downloadable IPv4/IPv6 CIDR lists and TechDocs for supported delivery products. Lists apply only to Origin IP ACL and the products that support it - not to every Akamai edge use case.

Autonomous systems

AS16625 AS20940 AS20189 AS36183 AS63949
Cloudflare Cloudflare edge lists for origin allowlisting. Amazon CloudFront AWS CloudFront edge range source. Fastly Fastly public IP API and AS54113 context. CDN77 CDN77 origin protection and AS60068 context.