asn.dev

Observed topology

AS199508 S1NETWORKS-AS S1 Networks Oy

Residential RIPE

Upstreams 8 carry this network
Downstreams 6 this network carries
Adjacent (IPv4) 14
Adjacent (IPv6) 8
Upstream graph Who carries AS199508, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS199508 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS199508: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv6410
AS47605FNE-Finland OyUnclassifiedIPv4 IPv6275
AS6939Hurricane Electric LLCTransitIPv4154
AS50304Blix Solutions ASUnclassifiedIPv428
AS12552GlobalConnect ABUnclassifiedIPv414
AS20764CJSC RASCOMUnclassifiedIPv414
AS24482SG.GSHostingIPv414
AS35280F5 Networks SARLHostingIPv414

Transit

Downstream networks

inferred

Networks for which AS199508 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS207003Web1 OyHostingIPv4 IPv699
AS203486Palvelinpuisto OyUnclassifiedIPv4 IPv691
AS57692Kapsi Internet-kayttajat ryUnclassifiedIPv4 IPv687
AS45010S1 Networks OyUnclassifiedIPv459
AS49866Loopback OyUnclassifiedIPv633
AS215629Viipurin Reaalikoulu OyUnclassifiedIPv633

Adjacency

Adjacent networks

All 15

Every AS seen directly next to AS199508 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv6636
AS47605FNE-Finland OyUnclassifiedIPv4 IPv6620
AS6939Hurricane Electric LLCTransitIPv4327
AS45010S1 Networks OyUnclassifiedIPv4 IPv6286
AS207003Web1 OyHostingIPv4 IPv6271
AS203486Palvelinpuisto OyUnclassifiedIPv4 IPv691
AS57692Kapsi Internet-kayttajat ryUnclassifiedIPv4 IPv687
AS49866Loopback OyUnclassifiedIPv4 IPv670
AS50304Blix Solutions ASUnclassifiedIPv470
AS215629Viipurin Reaalikoulu OyUnclassifiedIPv633

All 15 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you. Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.