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AS207003Web1 Oy

FinlandRegistryRIPE NCCTypeContent

As of 27th September 2026, AS207003 (Web1 Oy), a content network registered in Finland with RIPE NCC, originates 11 IPv4 prefixes covering 2.8k addresses and 8 IPv6 prefixes. By IPv4 address space that makes it the 22,343rd-largest of the 79,523 networks we see originating IPv4, and the 104th-largest of 281 in Finland. It is seen behind 5 upstream networks, most often AS6667 (Elisa Oyj) and AS719 (Elisa Oyj), and in front of 4 downstream networks. 89% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 95% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

11

IPv6 prefixes

8

IPv4 addresses

2.8k

IPv6 /64s

107B

Upstream graph

The networks AS207003 is seen behind, one and two hops out, drawn from real AS paths.

AS207003Toward the internet core
Upstream graph for AS207003: 10 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS207003Web1 OyThis networkAS719Elisa OyjAS6667Elisa OyjAS12552GlobalConnect (IP…AS20473The Constant Comp…AS199508S1 Networks OyAS3356Lumen (Level 3)AS49788Nexthop ASAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS47605FNE-Finland Oy

Networks observed one and two hops upstream of AS207003 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

18

adjacent networks

Upstreams
528%
Peers
950%
Downstreams
422%

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

Upstreams of AS207003
NetworkCountryRelationshipPathsVantage pts
AS6667Elisa OyjFIPeer1,028124
AS719Elisa OyjFIPeer76297
AS199508S1 Networks OyFIPeer42168
AS20473The Constant Company, LLCUSPeer6015
AS12552GlobalConnect (IP-Only)SEPeer181

Prefixes

The largest blocks AS207003 originates, widest first.

Largest prefixes originated by AS207003
PrefixAddressesVisibility
78.17.187.0/2425680/81
142.228.52.0/2425680/81
142.228.53.0/2425679/81
151.244.8.0/2425638/81
153.76.194.0/2425680/81
162.35.229.0/2425680/81
185.159.237.0/2425680/81
185.188.30.0/2425680/81
185.218.192.0/2425680/81
185.218.193.0/2425680/81

Routing health

How AS207003'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

  • Valid89.5%17
  • Invalid5.3%1
  • No ROA5.3%1

Propagation

  • Globally propagated90% of full-feed peers or more94.7%18
  • Partially propagated40% to 90%5.3%1
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 11 prefixes

IPv6 — 8 prefixes

  • /2934.4B × /6437.5%3
  • /324.3B × /6412.5%1
  • /4865.5k × /6450.0%4

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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