asn.dev

Observed topology

AS212341 CSN-DATACENTERS

Unclassified RIPE NSP

Upstreams 23 carry this network
Downstreams 1 this network carries
Adjacent (IPv4) 19
Adjacent (IPv6) 18
Upstream graph Who carries AS212341, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS212341 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 23

Networks observed carrying traffic for AS212341: 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 IPv6278
AS1299Arelion Sweden ABTransitIPv4 IPv6106
AS33891Core-Backbone GmbHHostingIPv4 IPv6106
AS88811&1 Versatel GmbHResidentialIPv4 IPv654
AS3320Deutsche Telekom AGMobileIPv4 IPv631
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv631
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv615
AS24482SG.GSHostingIPv4 IPv615
AS48185team.blue NVUnclassifiedIPv4 IPv615
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv615

All 23 upstreams →

Transit

Downstream networks

inferred

Networks for which AS212341 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS204010Stephan Rakowski, trading as CSN-Solutions GmbHUnclassifiedIPv636

Adjacency

Adjacent networks

All 25

Every AS seen directly next to AS212341 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv6294
AS33891Core-Backbone GmbHHostingIPv4 IPv6115
AS1299Arelion Sweden ABTransitIPv4 IPv6111
AS88811&1 Versatel GmbHResidentialIPv4 IPv654
AS204010Stephan Rakowski, trading as CSN-Solutions GmbHUnclassifiedIPv636
AS3320Deutsche Telekom AGMobileIPv4 IPv631
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv631
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv616
AS24482SG.GSHostingIPv4 IPv616
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv616

All 25 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-30 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.49M 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.