asn.dev

Observed topology

AS20676 PLUSNET Plusnet GmbH

Unclassified RIPE

Upstreams 23 carry this network
Downstreams 17 this network carries
Adjacent (IPv4) 39
Adjacent (IPv6) 22
Upstream graph Who carries AS20676, and who carries them, drawn as a map up to the transit-free core. 8 exchanges Where AS20676 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 23

Networks observed carrying traffic for AS20676: 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 IPv61,751
AS5405Inter.link GmbHUnclassifiedIPv4 IPv61,590
AS6939Hurricane Electric LLCTransitIPv4 IPv6546
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6254
AS3320Deutsche Telekom AGMobileIPv4 IPv690
AS24482SG.GSHostingIPv4 IPv689
AS42708Glesys Sweden ABUnclassifiedIPv4 IPv689
AS34019Hivane AssociationUnclassifiedIPv4 IPv688
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv688
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv688

All 23 upstreams →

Transit

Downstream networks

All 17

Networks for which AS20676 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS208162Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.UnclassifiedIPv4 IPv616,580
AS201809Tchibo GmbHUnclassifiedIPv4 IPv6253
AS47309q.beyond AGUnclassifiedIPv4186
AS203865overturn technologies GmbHUnclassifiedIPv4 IPv6136
AS50455Schmersal EOT Holding GmbHUnclassifiedIPv4 IPv670
AS199597cbcnet GmbHUnclassifiedIPv462
AS216387abc Information GmbH Kommunikation und BeratungUnclassifiedIPv462
AS20849CONTINUM AGHostingIPv4 IPv661
AS12374LF.net Netzwerksysteme GmbHUnclassifiedIPv454
AS212672Kurtz Holding GmbHUnclassifiedIPv441

All 17 downstreams →

Adjacency

Adjacent networks

All 41

Every AS seen directly next to AS20676 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS208162Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.UnclassifiedIPv4 IPv616,580
AS5405Inter.link GmbHUnclassifiedIPv4 IPv66,629
AS3356Level 3 Parent, LLCTransitIPv4 IPv66,479
AS6939Hurricane Electric LLCTransitIPv4 IPv63,226
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6994
AS42708Glesys Sweden ABUnclassifiedIPv4 IPv6463
AS213241TECHIT.BE SRLResidentialIPv4 IPv6456
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv6455
AS24482SG.GSHostingIPv4 IPv6454
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv6452

All 41 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.40M 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.