Akamai Technologies IP Ranges
Akamai Technologies is the world largest CDN provider, serving approximately 15-30 percent of global web traffic. It provides content delivery, DDoS protection, media streaming, and acquired Linode cloud in 2022.
- Provider
- Akamai Technologies
- Primary ASN
- AS20940
- Category
- CDN
- Headquarters
- Cambridge, MA, USA
- Announced IPv4 prefixes
- 3948
Known IP ranges
The blocks below are the major address allocations associated with Akamai Technologies. A network of this size deaggregates heavily, so an individual route in the global routing table is usually more specific than the block shown. Prefix sets change over time — use WHOIS Lookup for the authoritative current record for any specific IP.
23.32.0.0/11
96.16.0.0/15
104.64.0.0/10
184.24.0.0/13
2.16.0.0/13
92.122.0.0/15
What does an Akamai Technologies IP mean in a privacy test?
Akamai IPs appear when browsing Akamai-served websites including major retailers, banks, and media platforms. An Akamai IP in a test typically means measured traffic hit an Akamai edge node, not that your VPN routes through Akamai.
Akamai does not publish a public edge IP list
This is the direct answer to the search that brings people here: there is no public Akamai edge server IP list, and lists published elsewhere are inferred from routing data rather than supplied by Akamai. Akamai's own mechanism is Site Shield, which gives an individual customer a map of the CIDR blocks that will contact that customer's origin, retrieved from Akamai Control Center rather than from a public URL. Akamai also offers Site Shield Stable CIDRs, a deliberately larger set of Akamai-owned ranges that encompasses a customer's current map, so firewall rules stop churning every time the edge fleet is rearranged.
Akamai is explicit that a Site Shield map is not a substitute for authentication, and the reason is the useful part here: the same edge ranges serve every other Akamai customer, so traffic from an Akamai address proves it came through Akamai, not that it came through your configuration of Akamai. With no published file, the checkable source is the registry — the prefixes registered to AS20940 in ARIN and RIPE WHOIS, which is where the blocks listed above come from.
What an Akamai address in your logs actually is
An Akamai edge machine is a cache standing in front of a website, so the direction of the traffic matters more than the match. An AS20940 address arriving at your origin is Akamai fetching content on behalf of one of its customers. An AS20940 address you connect out to is the nearest edge for a site you asked for. Neither is a home connection and neither is a VPN exit: unlike rented cloud space, the CDN fleet is not something a third party can run their own software on.
Two Akamai networks are easy to confuse when a lookup comes back. The CDN is AS20940. AS63949 is Akamai Connected Cloud, the former Linode, and that one is rented compute — a machine there belongs to a customer and can be running anything, VPN exits included. An address on AS63949 therefore means something quite different from an address on AS20940, even though both now carry the Akamai name.
Related tools
Frequently asked questions
What IP ranges does Akamai use?
Akamai operates tens of thousands of edge servers globally. Key ranges include 23.32.0.0/11, 96.16.0.0/15, and 104.64.0.0/10. Akamai does not publish a single IP list; ranges must be queried via BGP data or ARIN/RIPE WHOIS under AS20940.
Why does an Akamai IP appear in my test?
Akamai IPs appear when your test request reaches an Akamai-served property. Akamai serves many major websites so their IPs can appear in traceroutes and timing tests. This is expected behavior.
Does Akamai also provide DNS services?
Yes. Akamai operates its own authoritative DNS network and the Akamai Secure DNS resolver. Akamai acquired Linode (now Akamai Cloud) in 2022, so some Linode IPs are now under the Akamai umbrella.
How do I look up an Akamai IP?
Use MyIPScan IP Geolocation Lookup. Akamai IPs return AS20940 with the PoP location. Because Akamai has PoPs in thousands of cities, city-level geolocation is usually accurate.
What ASN does Akamai use?
Akamai primarily uses AS20940 for its CDN network. The AS20940 page on MyIPScan covers this. Akamai Cloud (formerly Linode) uses AS63949.