asn.dev

Observed topology

AS39040 NTSWORKSPACEAG-AS39040

Unclassified RIPE

Upstreams 2 carry this network
Downstreams 16 this network carries
Adjacent (IPv4) 18
Adjacent (IPv6) 13
Upstream graph Who carries AS39040, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS39040 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS39040: 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
AS29075IELO-LIAZO SERVICES SASUnclassifiedIPv4 IPv650
AS33891Core-Backbone GmbHHostingIPv4 IPv646

Transit

Downstream networks

All 16

Networks for which AS39040 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS203434Open Circle AGUnclassifiedIPv4 IPv6198
AS210861Open Networks AssociationUnclassifiedIPv4 IPv699
AS25353BAR Informatik AGUnclassifiedIPv4 IPv677
AS206616wwcom AGUnclassifiedIPv474
AS204178Winet Voicetec Solutions AGUnclassifiedIPv459
AS15716Adfinis AGHostingIPv4 IPv658
AS44879Zentrale Informatikdienste ZID Kanton Basel-LandschaftUnclassifiedIPv457
AS25563Multimedia Networks AGHostingIPv4 IPv656
AS198951BLS AGUnclassifiedIPv4 IPv656
AS39265Stadtverwaltung der Stadt BernUnclassifiedIPv4 IPv639

All 16 downstreams →

Adjacency

Adjacent networks

All 18

Every AS seen directly next to AS39040 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS29075IELO-LIAZO SERVICES SASUnclassifiedIPv4 IPv6636
AS33891Core-Backbone GmbHHostingIPv4 IPv6554
AS203434Open Circle AGUnclassifiedIPv4 IPv6198
AS51907Kanton ZugUnclassifiedIPv4 IPv6156
AS210861Open Networks AssociationUnclassifiedIPv4 IPv699
AS25353BAR Informatik AGUnclassifiedIPv4 IPv677
AS206616wwcom AGUnclassifiedIPv474
AS204178Winet Voicetec Solutions AGUnclassifiedIPv459
AS15716Adfinis AGHostingIPv4 IPv658
AS44879Zentrale Informatikdienste ZID Kanton Basel-LandschaftUnclassifiedIPv457

All 18 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-26 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M 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.