asn.dev

Observed topology

AS2107 ARNES-NET Academic and Research Network of Slovenia

Unclassified RIPE Educational/Research

Upstreams 4 carry this network
Downstreams 6 this network carries
Adjacent (IPv4) 11
Adjacent (IPv6) 9
Upstream graph Who carries AS2107, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS2107 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS2107: 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
AS174Cogent Communications, LLCTransitIPv4 IPv6733
AS21320GEANT VerenigingUnclassifiedIPv4 IPv6638
AS20965GEANT VerenigingUnclassifiedIPv4 IPv6127
AS3356Level 3 Parent, LLCTransitIPv4120

Transit

Downstream networks

inferred

Networks for which AS2107 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS58046The Ministry of Digital TransformationUnclassifiedIPv4 IPv6344
AS42207Agencija za komunikacijska omrezja in storitve republike SlovenijeUnclassifiedIPv4 IPv6171
AS14789Cloudflare, Inc.UnclassifiedIPv4 IPv686
AS50195Univerza v MariboruUnclassifiedIPv462
AS42909Community DNS LimitedHostingIPv4 IPv69
AS47267Serbian National Internet Domain Registry FoundationUnclassifiedIPv4 IPv69

Adjacency

Adjacent networks

All 11

Every AS seen directly next to AS2107 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv61,027
AS21320GEANT VerenigingUnclassifiedIPv4 IPv6919
AS58046The Ministry of Digital TransformationUnclassifiedIPv4 IPv6344
AS20965GEANT VerenigingUnclassifiedIPv4 IPv6186
AS42207Agencija za komunikacijska omrezja in storitve republike SlovenijeUnclassifiedIPv4 IPv6171
AS3356Level 3 Parent, LLCTransitIPv4170
AS14789Cloudflare, Inc.UnclassifiedIPv4 IPv686
AS50195Univerza v MariboruUnclassifiedIPv462
AS42909Community DNS LimitedHostingIPv4 IPv69
AS47267Serbian National Internet Domain Registry FoundationUnclassifiedIPv4 IPv69

All 11 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-29 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.36M 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.