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AS216421Adven Group Oy

FinlandRegistryRIPE NCC

As of 11th November 2026, AS216421 (Adven Group Oy), a network registered in Finland with RIPE NCC, originates 2 IPv4 prefixes covering 512 addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 49,320th-largest of the 80,747 networks we see originating IPv4, and the 220th-largest of 284 in Finland. It is seen behind 3 upstream networks, most often AS16302 (Suomi Communications Oy) and AS3301 (Telia Company AB). None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

2

IPv6 prefixes

1

IPv4 addresses

512

IPv6 /64s

4.3B

Upstream graph

The networks AS216421 is seen behind, one and two hops out, drawn from real AS paths.

AS216421Toward the internet core
Upstream graph for AS216421: 7 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS216421Adven Group OyThis networkAS719Elisa OyjAS3301Telia Company ABAS16302Suomi Communicati…AS6667Elisa OyjAS1299Arelion (fka. Tel…AS12552GlobalConnect (IP…AS24940Hetzner Online Gm…

Networks observed one and two hops upstream of AS216421 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

6

adjacent networks

Upstreams
350%
Peers
350%
Downstreams
00%

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

Upstreams of AS216421
NetworkCountryRelationshipPathsVantage pts
AS16302Suomi Communications OyFIPeer118118
AS3301Telia Company ABSEPeer7676
AS719Elisa OyjFIPeer2020

Prefixes

The largest blocks AS216421 originates, widest first.

Largest prefixes originated by AS216421
PrefixAddressesVisibility
37.153.133.0/2425676/76
194.103.214.0/2425676/76
2a13:aec0::/324.3B × /6462/63

Routing health

How AS216421'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%3

Propagation

  • Globally propagated90% of full-feed peers or more100.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS216421 started or stopped in this period.

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