asn.dev

Observed topology

AS43366 OSSO OSSO B.V.

Hosting RIPE Content

Upstreams 23 carry this network
Downstreams 11 this network carries
Adjacent (IPv4) 28
Adjacent (IPv6) 18
Upstream graph Who carries AS43366, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS43366 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 23

Networks observed carrying traffic for AS43366: 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
AS2914NTT America, Inc.TransitIPv4 IPv6234
AS6830Liberty Global Europe Holding B.V.ResidentialIPv4 IPv6132
AS6939Hurricane Electric LLCTransitIPv4 IPv6111
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv612
AS24482SG.GSHostingIPv4 IPv612
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv612
AS48185team.blue NVUnclassifiedIPv4 IPv612
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv612
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv612
AS3216PJSC "Vimpelcom"MobileIPv49

All 23 upstreams →

Transit

Downstream networks

All 11

Networks for which AS43366 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS203135CTNET B.V.UnclassifiedIPv4 IPv6153
AS41153Gamma Communications Nederland B.V.HostingIPv490
AS201791Devhouse Spindle B.V.HostingIPv4 IPv680
AS60880Horizon Telecom B.V.UnclassifiedIPv4 IPv661
AS202606Fiber Noord BVUnclassifiedIPv460
AS44439Deksel Enterprises B.V.HostingIPv456
AS208209MobielWerkt B.V.UnclassifiedIPv455
AS2189672Hip Consultancy B.V.UnclassifiedIPv454
AS215914NetGrid Holding B.V.UnclassifiedIPv436
AS209495Stichting RTV NoordUnclassifiedIPv434

All 11 downstreams →

Adjacency

Adjacent networks

All 34

Every AS seen directly next to AS43366 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS2914NTT America, Inc.TransitIPv4 IPv6543
AS6830Liberty Global Europe Holding B.V.ResidentialIPv4 IPv6265
AS6939Hurricane Electric LLCTransitIPv4 IPv6187
AS203135CTNET B.V.UnclassifiedIPv4 IPv6153
AS41153Gamma Communications Nederland B.V.HostingIPv490
AS201791Devhouse Spindle B.V.HostingIPv4 IPv680
AS60880Horizon Telecom B.V.UnclassifiedIPv4 IPv673
AS202606Fiber Noord BVUnclassifiedIPv460
AS44439Deksel Enterprises B.V.HostingIPv456
AS208209MobielWerkt B.V.UnclassifiedIPv455

All 34 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-01 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.48M 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.