Origin IP ACL — official CIDR downloads
Supported IPv4/IPv6 CIDRs for Origin IP ACL (txt/csv/zip). Deprecated IPv4 blocks and change notifications are described on the same TechDocs path.
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
Commonly cited Akamai ASNs
Akamai operates a large portfolio of ASNs worldwide. The set below is illustrative only; prefer Origin IP ACL downloads and Akamai Control Center notifications for allowlists.
Announced under this company
AS16625AS20940AS20189AS36183AS63949
Published ranges
Official documentation and feeds for each product—open the links for current ranges and verification guidance.