subnet.im

AS21342Akamai International B.V.

NetherlandsRegistryRIPE NCC

As of 23rd October 2026, AS21342 (Akamai International B.V.), a network registered in the Netherlands with RIPE NCC, originates 90 IPv4 prefixes covering 23k addresses and 81 IPv6 prefixes. By IPv4 address space that makes it the 6,523rd-largest of the 79,652 networks we see originating IPv4, and the 91st-largest of 1,023 in the Netherlands. It is seen behind 4 upstream networks, most often AS20940 (Akamai International B.V.) and AS34164 (Akamai International B.V.). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 96% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

90

IPv6 prefixes

81

IPv4 addresses

23k

IPv6 /64s

5.3M

Upstream graph

The networks AS21342 is seen behind, one and two hops out, drawn from real AS paths.

AS21342Toward the internet core
Upstream graph for AS21342: 8 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS21342Akamai Internatio…This networkAS20940Akamai Internatio…AS31108Akamai Internatio…AS34164Akamai Internatio…AS35994Akamai Technologi…AS2914NTT America, Inc.AS1299Arelion (fka. Tel…AS6461Zayo BandwidthAS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS21342 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

8

adjacent networks

Upstreams
450%
Peers
450%
Downstreams
00%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS21342
NetworkCountryRelationshipPathsVantage pts
AS20940Akamai International B.V.NLPeer11,526141
AS34164Akamai International B.V.NLPeer210141
AS35994Akamai Technologies, Inc.USPeer7761
AS31108Akamai International B.V.NLPeer5736

Prefixes

All 171

The largest blocks AS21342 originates, widest first.

Largest prefixes originated by AS21342
PrefixAddressesVisibility
2.16.40.0/2425677/77
2.16.122.0/2425677/77
2.16.123.0/2425677/77
2.16.126.0/2425677/77
2.16.127.0/2425677/77
2.16.130.0/2425677/77
2.17.46.0/2425677/77
2.22.230.0/2425677/77
23.2.10.0/2425677/77
23.2.11.0/2425677/77

Routing health

How AS21342's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid100.0%171
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more96.5%165
  • Partially propagated40% to 90%2.9%5
  • Seen by few peersUnder 40%0.6%1

Prefix sizes

IPv4 — 90 prefixes

IPv6 — 81 prefixes

  • /4865.5k × /64100.0%81

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.