asn.dev

Observed topology

AS1853 ACOnet - ACONET

Unclassified RIPE

Upstreams 11 carry this network
Downstreams 49 this network carries
Adjacent (IPv4) 56
Adjacent (IPv6) 35
Upstream graph Who carries AS1853, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS1853 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 11

Networks observed carrying traffic for AS1853: 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 IPv6646
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbHUnclassifiedIPv4 IPv6178
AS20965GEANT VerenigingUnclassifiedIPv4 IPv689
AS21320GEANT VerenigingUnclassifiedIPv4 IPv686
AS9002RETN LimitedUnclassifiedIPv4 IPv646
AS2852CESNET z.s.p.o.EducationIPv4 IPv635
AS33891Core-Backbone GmbHHostingIPv4 IPv620
AS3303Swisscom (Schweiz) AGResidentialIPv4 IPv619
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv612
AS2607Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANETEducationIPv49

All 11 upstreams →

Transit

Downstream networks

All 49

Networks for which AS1853 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS760Vienna UniversityUnclassifiedIPv4467
AS1205University LinzUnclassifiedIPv4 IPv6304
AS47515Bundesministerium fuer Inneres, Sektion IVUnclassifiedIPv4 IPv6226
AS51066Austro Control Oesterreichische Gesellschaft fuer Zivilluftfahrt mit beschraenkter HaftungUnclassifiedIPv4 IPv6206
AS1288Packet Clearing House, Inc.UnclassifiedIPv4 IPv6182
AS39837Verein zur Foerderung von NetzwerkkunstUnclassifiedIPv4 IPv6171
AS42685BundeskanzleramtUnclassifiedIPv4170
AS39057DVT-Daten-Verarbeitung-Tirol GmbHUnclassifiedIPv4 IPv6164
AS12762Vorarlberger Informatik- und Telekommunikationsdienstleistungsgesellschaft mbHUnclassifiedIPv4 IPv6142
AS8692Bundesrechenzentrum GmbHUnclassifiedIPv4 IPv6139

All 49 downstreams →

Adjacency

Adjacent networks

All 60

Every AS seen directly next to AS1853 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv63,346
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbHUnclassifiedIPv4 IPv6892
AS21320GEANT VerenigingUnclassifiedIPv4 IPv6559
AS20965GEANT VerenigingUnclassifiedIPv4 IPv6540
AS760Vienna UniversityUnclassifiedIPv4 IPv6508
AS2852CESNET z.s.p.o.EducationIPv4 IPv6341
AS9002RETN LimitedUnclassifiedIPv4 IPv6340
AS1205University LinzUnclassifiedIPv4 IPv6304
AS47515Bundesministerium fuer Inneres, Sektion IVUnclassifiedIPv4 IPv6226
AS51066Austro Control Oesterreichische Gesellschaft fuer Zivilluftfahrt mit beschraenkter HaftungUnclassifiedIPv4 IPv6206

All 60 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.00M 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.