asn.dev

Observed topology

AS214205 CRISTIAN-TUDOR-MARCUS Cristian Tudor Marcus

Unclassified RIPE

Upstreams 12 carry this network
Downstreams 8 this network carries
Adjacent (IPv4) 2
Adjacent (IPv6) 21
Upstream graph Who carries AS214205, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS214205 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 12

Networks observed carrying traffic for AS214205: 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 LLCTransitIPv660
AS214762Sebastian Stefanek trading as MatHost.euHostingIPv636
AS208453Johan Karlsson trading as SweHostingHostingIPv632
AS44324MoeDove LLCResidentialIPv631
AS214331TESKE VIRTUAL SYSTEM LTDAUnclassifiedIPv618
AS199829Akronic Network LTDAUnclassifiedIPv617
AS214757Jakub KrsaUnclassifiedIPv66
AS24482SG.GSHostingIPv62
AS207841Inferno Communications LtdUnclassifiedIPv62
AS204092Association GRIFONUnclassifiedIPv61

All 12 upstreams →

Transit

Downstream networks

inferred

Networks for which AS214205 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS57330Sichuan Giraffe Technology Co., Ltd.ResidentialIPv682
AS218444Muhammet Eren KaramanUnclassifiedIPv637
AS218569Viktor NesmeianovUnclassifiedIPv636
AS214508Manu BraibantUnclassifiedIPv67
AS204882DENIS NOLANUnclassifiedIPv64
AS215760Adam GrazioliUnclassifiedIPv64
AS199109Guy Fenn-NewburyUnclassifiedIPv62
AS201421Daniel Muehlbachler-PietrzykowskiUnclassifiedIPv62

Adjacency

Adjacent networks

All 22

Every AS seen directly next to AS214205 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv6195
AS57330Sichuan Giraffe Technology Co., Ltd.ResidentialIPv682
AS218569Viktor NesmeianovUnclassifiedIPv4 IPv638
AS218444Muhammet Eren KaramanUnclassifiedIPv637
AS214762Sebastian Stefanek trading as MatHost.euHostingIPv636
AS208453Johan Karlsson trading as SweHostingHostingIPv632
AS214757Jakub KrsaUnclassifiedIPv632
AS44324MoeDove LLCResidentialIPv631
AS214331TESKE VIRTUAL SYSTEM LTDAUnclassifiedIPv618
AS199829Akronic Network LTDAUnclassifiedIPv617

All 22 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M 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.