asn.dev

Observed topology

AS39686 AS-EUROFIBER

Residential RIPE NSP

Upstreams 33 carry this network
Downstreams 79 this network carries
Adjacent (IPv4) 116
Adjacent (IPv6) 65
Upstream graph Who carries AS39686, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS39686 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 33

Networks observed carrying traffic for AS39686: 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
AS3356Level 3 Parent, LLCTransitIPv4 IPv61,618
AS3257GTT Communications Inc.TransitIPv4 IPv6848
AS6939Hurricane Electric LLCTransitIPv4 IPv6833
AS24482SG.GSHostingIPv4 IPv696
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv696
AS42708Glesys ABUnclassifiedIPv4 IPv696
AS45049Mohamed El BoudduntiResidentialIPv4 IPv696
AS48185team.blue NVUnclassifiedIPv4 IPv696
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv691
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv691

All 33 upstreams →

Transit

Downstream networks

All 79

Networks for which AS39686 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS48037SSC-ICT HaaglandenUnclassifiedIPv4 IPv62,259
AS203396Ministerie van Economische ZakenUnclassifiedIPv4 IPv61,903
AS202553Dienst Uitvoering OnderwijsUnclassifiedIPv4 IPv6877
AS205185Eurofiber Cloud Infra B.V.UnclassifiedIPv4 IPv6795
AS212157baten-lastendienst LogiusUnclassifiedIPv4 IPv6779
AS35625Eurofiber France SASHostingIPv4 IPv6464
AS60941Fujitsu Technology Solutions BVUnclassifiedIPv4 IPv6432
AS211856De Nederlandsche Bank N.V.UnclassifiedIPv4 IPv6329
AS206436FUJIFILM Europe B.V.UnclassifiedIPv4 IPv6324
AS51647Gemeente AmsterdamUnclassifiedIPv4 IPv6300

All 79 downstreams →

Adjacency

Adjacent networks

All 133

Every AS seen directly next to AS39686 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv65,938
AS3257GTT Communications Inc.TransitIPv4 IPv63,823
AS35625Eurofiber France SASHostingIPv4 IPv63,273
AS6939Hurricane Electric LLCTransitIPv4 IPv63,205
AS205185Eurofiber Cloud Infra B.V.UnclassifiedIPv4 IPv62,307
AS48037SSC-ICT HaaglandenUnclassifiedIPv4 IPv62,259
AS203396Ministerie van Economische ZakenUnclassifiedIPv4 IPv61,903
AS45049Mohamed El BoudduntiResidentialIPv4 IPv6882
AS202553Dienst Uitvoering OnderwijsUnclassifiedIPv4 IPv6877
AS57866Fusix Networks B.V.UnclassifiedIPv4805

All 133 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-11 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.47M 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.