AS20940

AS20940 is Akamai's flagship international content-delivery autonomous system, held by Akamai International B.V. as a RIPE NCC LIR. The aut-num object was created 2002-08-29; the LIR/organisation object (ORG-AT1-RIPE) was created later, in April 2004. Although the LIR is registered in the Netherlands, the operator is US-headquartered in Cambridge, Massachusetts. Akamai is one of the oldest and largest CDNs, and this ASN carries web, media, and software-download delivery for a broad enterprise customer base. It is one of several Akamai networks: sibling ASNs include AS16625 (the US delivery ASN), AS63949 (Akamai/Linode), and AS36183, among others. A practical distinction for triage is that AS20940 behaves like a CDN edge — addresses serve customer content from edge nodes rather than acting as origins — whereas AS63949 behaves like a hosting/VPS network with a different abuse profile, a consequence of Akamai's 2022 acquisition of Linode. As with any CDN, the same edge IPs front many customers, so reputation should be tied to the served origin, not to the ASN. RPKI coverage is largely valid.

Operator

Akamai International B.V. (RIPE org ORG-AT1-RIPE, LIR) [Confirmed] — RIPE RDAP/WHOIS

Country / RIR

NL (org registration; operated from Cambridge, MA, US), RIPE NCC [Confirmed] — RIPE org object ORG-AT1-RIPE (country: NL; address 145 Broadway, Cambridge, MA, US)

Allocated

2002-08-29 (aut-num created date) [Confirmed] — RIPE database; the org/LIR object ORG-AT1-RIPE was created 2004-04-17 (distinct from AS allocation)

Org status

active; acquired Linode for ~$900M (Feb 15, 2022; now AS63949, part of Akamai Connected Cloud); also acquired Guardicore — prnewswire.com, technical.ly

Security/abuse context

Akamai's own research notes legitimate and illegitimate services can share an ASN; CDN shared-IP caveat applies. No notable standalone abuse signal against AS20940 as of 2026-06-03 — akamai.com/blog

Network & routing

Network type

CDN [Confirmed] — operator services + bgp.tools classification

Size

~3,927–4,000 IPv4 prefixes (~13.9M addrs), ~766–785 IPv6; ~914–943 peers; ~255 IXPs — bgp.he.net / RIPEstat (2026-05)

Routing/peering

selective/open (RIPE aut-num shows extensive import/export with AS-AKAMAI); upstreams incl. AS1299, AS2914, AS9498, AS3549; RPKI mostly valid (~4,736 valid vs ~11 invalid) — bgp.he.net

Notable usage

Akamai's international CDN delivery — web/media/software downloads for a large enterprise base — akamai.com

Related ASNs

AS16625 (US), AS63949 (Akamai/Linode VPS), AS36183

Analyst note

IPs here are CDN edge serving customer content (an edge node, not an origin). Distinguish from AS63949 (Akamai/Linode), which behaves like hosting/VPS with a different abuse profile.