asn.dev

Observed topology

AS44973 RZHAS-AS Rechenzentrum Hassfurt GmbH

Unclassified RIPE NSP

Upstreams 17 carry this network
Downstreams 2 this network carries
Adjacent (IPv4) 16
Adjacent (IPv6) 13
Upstream graph Who carries AS44973, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS44973 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 17

Networks observed carrying traffic for AS44973: 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 IPv662
AS1299Arelion Sweden ABTransitIPv4 IPv632
AS6939Hurricane Electric LLCTransitIPv4 IPv624
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv68
AS20686Bisping & Bisping GmbH & Co KGUnclassifiedIPv44
AS24482SG.GSHostingIPv4 IPv63
AS34019Hivane AssociationUnclassifiedIPv4 IPv63
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv63
AS212024Marc SchmittUnclassifiedIPv4 IPv63
AS6797GlobalConnect ABUnclassifiedIPv42

All 17 upstreams →

Transit

Downstream networks

inferred

Networks for which AS44973 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS59474Rechenzentrum Hassfurt GmbHUnclassifiedIPv4 IPv693
AS58132Marco Hubert Firsching trading as digideo ComputerserviceUnclassifiedIPv666

Adjacency

Adjacent networks

All 19

Every AS seen directly next to AS44973 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS33891Core-Backbone GmbHHostingIPv4 IPv6122
AS59474Rechenzentrum Hassfurt GmbHUnclassifiedIPv4 IPv693
AS58132Marco Hubert Firsching trading as digideo ComputerserviceUnclassifiedIPv666
AS1299Arelion Sweden ABTransitIPv4 IPv660
AS6939Hurricane Electric LLCTransitIPv4 IPv654
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv617
AS24482SG.GSHostingIPv4 IPv67
AS34019Hivane AssociationUnclassifiedIPv4 IPv67
AS212024Marc SchmittUnclassifiedIPv4 IPv67
AS20686Bisping & Bisping GmbH & Co KGUnclassifiedIPv46

All 19 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-07 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 72.97M 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.