asn.dev

Observed topology

AS6204 ZET-NET ZET.NET IP Transit

Unclassified RIPE NSP

Upstreams 43 carry this network
Downstreams 100 this network carries
Adjacent (IPv4) 142
Adjacent (IPv6) 82
Upstream graph Who carries AS6204, and who carries them, drawn as a map up to the transit-free core. 25 exchanges Where AS6204 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 43

Networks observed carrying traffic for AS6204: 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
AS1299Arelion Sweden ABTransitIPv4 IPv654
AS6939Hurricane Electric LLCTransitIPv4 IPv635
AS2914NTT America, Inc.TransitIPv424
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv418
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv617
AS174Cogent Communications, LLCTransitIPv415
AS3257GTT Communications Inc.TransitIPv4 IPv613
AS577Bell CanadaMobileIPv4 IPv610
AS1836green.ch AGResidentialIPv4 IPv66
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv66

All 43 upstreams →

Transit

Downstream networks

All 100

Networks for which AS6204 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS25198INTERKVM HOST SRLHostingIPv4 IPv68,297
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv4 IPv63,119
AS44051Fornex Hosting S.L.HostingIPv42,310
AS62390NexonHost SrlHostingIPv4 IPv61,959
AS12735TurkNet Iletisim Hizmetleri A.S.UnclassifiedIPv4 IPv61,456
AS39543Tennet Telecom SRLUnclassifiedIPv41,197
AS16003Fornex Hosting S.L.UnclassifiedIPv41,092
AS31554LANSOFT DATA SRLUnclassifiedIPv4 IPv6890
AS48040Fornex Hosting S.L.UnclassifiedIPv4852
AS202813LIBERATEL COMUNICACIONES, S.L.ResidentialIPv4 IPv6813

All 100 downstreams →

Adjacency

Adjacent networks

All 162

Every AS seen directly next to AS6204 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv4 IPv628,473
AS44592SkyLink Data Center BVHostingIPv4 IPv616,008
AS1299Arelion Sweden ABTransitIPv4 IPv615,017
AS2914NTT America, Inc.TransitIPv4 IPv69,270
AS25198INTERKVM HOST SRLHostingIPv4 IPv68,311
AS174Cogent Communications, LLCTransitIPv4 IPv67,851
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv67,190
AS3257GTT Communications Inc.TransitIPv4 IPv65,366
AS59919Brainbox S.r.l.ResidentialIPv43,099
AS29504Freenet Liberec, z.s.UnclassifiedIPv4 IPv62,859

All 162 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-24 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 72.94M 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.