asn.dev

Observed topology

AS400818 AUSRA-SYSTEMS

Unclassified ARIN

Upstreams 10 carry this network
Downstreams 3 this network carries
Adjacent (IPv4) 10
Adjacent (IPv6) 8
Upstream graph Who carries AS400818, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS400818 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS400818: 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
AS6939Hurricane Electric LLCTransitIPv4 IPv676
AS32097WholeSale Internet, Inc.HostingIPv441
AS9002RETN LimitedUnclassifiedIPv43
AS24482SG.GSHostingIPv4 IPv63
AS394256Tech Futures Interactive Inc.UnclassifiedIPv4 IPv63
AS34927iFog GmbHHostingIPv62
AS293ESnetUnclassifiedIPv41
AS3130RGnet OUUnclassifiedIPv41
AS7575Australian Academic and Research Network (AARNet)EducationIPv41
AS52025ParadoxNetworks LimitedUnclassifiedIPv41

Transit

Downstream networks

inferred

Networks for which AS400818 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS208694LEON AARON TIEKOETTERUnclassifiedIPv6131
AS44354BROCK VOJKOVICHostingIPv6124
AS210645DOMINIK DOBROWOLSKIHostingIPv637

Adjacency

Adjacent networks

All 13

Every AS seen directly next to AS400818 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv6350
AS208694LEON AARON TIEKOETTERUnclassifiedIPv6131
AS44354BROCK VOJKOVICHostingIPv4 IPv6126
AS32097WholeSale Internet, Inc.HostingIPv4 IPv645
AS210645DOMINIK DOBROWOLSKIHostingIPv637
AS24482SG.GSHostingIPv4 IPv610
AS394256Tech Futures Interactive Inc.UnclassifiedIPv4 IPv610
AS9002RETN LimitedUnclassifiedIPv43
AS34927iFog GmbHHostingIPv63
AS3130RGnet OUUnclassifiedIPv42

All 13 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-25 12:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.17M 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.