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AS199254Decens Oy

FinlandRegistryRIPE NCC

As of 10th November 2026, AS199254 (Decens Oy), a network registered in Finland with RIPE NCC, originates 1 IPv4 prefix covering 512 addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 49,312th-largest of the 80,733 networks we see originating IPv4, and the 220th-largest of 284 in Finland. It is seen behind 2 upstream networks, most often AS6667 (Elisa Oyj) and AS16086 (DNA Oyj). 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

1

IPv6 prefixes

1

IPv4 addresses

512

IPv6 /64s

4.3B

Upstream graph

The networks AS199254 is seen behind, one and two hops out, drawn from real AS paths.

AS199254Toward the internet core
Upstream graph for AS199254: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS199254Decens OyThis networkAS6667Elisa OyjAS16086DNA OyjAS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS174Cogent Communicat…

Networks observed one and two hops upstream of AS199254 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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS199254
NetworkCountryRelationshipPathsVantage pts
AS6667Elisa OyjFIPeer135135
AS16086DNA OyjFIPeer44

Prefixes

The largest blocks AS199254 originates, widest first.

Largest prefixes originated by AS199254
PrefixAddressesVisibility
185.102.234.0/2351276/76
2a01:6141::/324.3B × /6463/63

Routing health

How AS199254'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%2

Propagation

  • Globally propagated90% of full-feed peers or more100.0%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS199254 started or stopped in this period.

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