asn.dev

Observed topology

AS20686 BISPING ISP & Citycarrier, Germany

Unclassified RIPE NSP

Upstreams 15 carry this network
Downstreams 5 this network carries
Adjacent (IPv4) 21
Adjacent (IPv6) 5
Upstream graph Who carries AS20686, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS20686 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 15

Networks observed carrying traffic for AS20686: 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
AS33891Core-Backbone GmbHHostingIPv4 IPv6366
AS1299Arelion Sweden ABTransitIPv4 IPv6206
AS6939Hurricane Electric LLCTransitIPv4 IPv6120
AS3320Deutsche Telekom AGMobileIPv4 IPv646
AS34549meerfarbig GmbH & Co. KGHostingIPv442
AS8804regio[.NET] Holding GmbHUnclassifiedIPv428
AS24482SG.GSHostingIPv4 IPv616
AS6797GlobalConnect ABUnclassifiedIPv414
AS8551Bezeq International Ltd.UnclassifiedIPv414
AS12779IT.Gate S.p.A.UnclassifiedIPv414

All 15 upstreams →

Transit

Downstream networks

inferred

Networks for which AS20686 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS205496FIS-ASP Application Service Providing & IT-Outsourcing GmbHUnclassifiedIPv4106
AS44231geobra Brandstaetter Stiftung & Co. KG.UnclassifiedIPv462
AS205382Nuernberger Wach- und Schliessgesellschaft mbHUnclassifiedIPv445
AS56719Dorfner KGUnclassifiedIPv45
AS44973Rechenzentrum Hassfurt GmbHUnclassifiedIPv44

Adjacency

Adjacent networks

All 21

Every AS seen directly next to AS20686 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS33891Core-Backbone GmbHHostingIPv4 IPv6457
AS1299Arelion Sweden ABTransitIPv4 IPv6248
AS6939Hurricane Electric LLCTransitIPv4 IPv6131
AS205496FIS-ASP Application Service Providing & IT-Outsourcing GmbHUnclassifiedIPv4106
AS34549meerfarbig GmbH & Co. KGHostingIPv466
AS44231geobra Brandstaetter Stiftung & Co. KG.UnclassifiedIPv462
AS3320Deutsche Telekom AGMobileIPv4 IPv652
AS8804regio[.NET] Holding GmbHUnclassifiedIPv450
AS205382Nuernberger Wach- und Schliessgesellschaft mbHUnclassifiedIPv445
AS24482SG.GSHostingIPv4 IPv619

All 21 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.