asn.dev

Observed topology

AS61955 ColocationIX-AS ColocationIX GmbH

Unclassified ARIN

Upstreams 33 carry this network
Downstreams 6 this network carries
Adjacent (IPv4) 35
Adjacent (IPv6) 19
Upstream graph Who carries AS61955, and who carries them, drawn as a map up to the transit-free core. 10 exchanges Where AS61955 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 33

Networks observed carrying traffic for AS61955: 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 IPv6198
AS50629LWLcom GmbHUnclassifiedIPv4 IPv6105
AS174Cogent Communications, LLCTransitIPv4 IPv6100
AS9145EWE TEL GmbHResidentialIPv4 IPv683
AS24482SG.GSHostingIPv4 IPv615
AS42708Glesys ABUnclassifiedIPv4 IPv615
AS48185team.blue NVUnclassifiedIPv4 IPv615
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv615
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv615
AS50304Blix Solutions ASUnclassifiedIPv4 IPv615

All 33 upstreams →

Transit

Downstream networks

inferred

Networks for which AS61955 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS31055Consultix GmbHUnclassifiedIPv41,353
AS204368Joerg Suenram trading as it NGO GmbH & Co. KGUnclassifiedIPv4 IPv6238
AS57137SIEVERS-SNC Beteiligungs GmbHUnclassifiedIPv4 IPv6236
AS44599Fabio Martin trading as FM-Datacenter GmbH & Co. KGUnclassifiedIPv4153
AS50905LAND-DATA Beteiligungs GmbHUnclassifiedIPv4153
AS3337ColocationIX GmbHHostingIPv483

Adjacency

Adjacent networks

All 40

Every AS seen directly next to AS61955 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS31055Consultix GmbHUnclassifiedIPv41,353
AS50629LWLcom GmbHUnclassifiedIPv4 IPv6617
AS6939Hurricane Electric LLCTransitIPv4 IPv6586
AS204368Joerg Suenram trading as it NGO GmbH & Co. KGUnclassifiedIPv4 IPv6238
AS57137SIEVERS-SNC Beteiligungs GmbHUnclassifiedIPv4 IPv6236
AS9145EWE TEL GmbHResidentialIPv4 IPv6213
AS44599Fabio Martin trading as FM-Datacenter GmbH & Co. KGUnclassifiedIPv4153
AS50905LAND-DATA Beteiligungs GmbHUnclassifiedIPv4153
AS174Cogent Communications, LLCTransitIPv4 IPv6100
AS50304Blix Solutions ASUnclassifiedIPv4 IPv698

All 40 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-02 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.44M 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.