asn.dev

Observed topology

AS6204 ZET-NET ZET.NET IP Transit

Upstreams 44 carry this network
Downstreams 93 this network carries
Adjacent (IPv4) 143
Adjacent (IPv6) 76

Transit

Upstream networks

inferred

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 IPv675
AS6939Hurricane Electric LLCTransitIPv4 IPv636
AS2914NTT America, Inc.TransitIPv427
AS3257GTT Communications Inc.TransitIPv4 IPv625
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv618
AS174Cogent Communications, LLCTransitIPv4 IPv614
AS50304Blix Solutions ASUnclassifiedIPv4 IPv610
AS50673Serverius Holding B.V.UnclassifiedIPv48
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv48
AS577Bell CanadaMobileIPv4 IPv68
AS5511Orange S.A.TransitIPv4 IPv67
AS1836green.ch AGResidentialIPv4 IPv65
AS212024Marc SchmittUnclassifiedIPv4 IPv65
AS204092Association GRIFONUnclassifiedIPv4 IPv65
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv4 IPv65
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv65
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv65
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv65
AS24482SG.GSHostingIPv4 IPv65
AS29504Freenet Liberec, z.s.UnclassifiedIPv4 IPv65
AS48185team.blue NVUnclassifiedIPv4 IPv65
AS57463NetIX Communications JSCUnclassifiedIPv44
AS293ESnetUnclassifiedIPv44
AS12552GlobalConnect ABUnclassifiedIPv44
AS37721Virtual Technologies & SolutionsResidentialIPv44
AS6696VERIXI SAUnclassifiedIPv44
AS34927iFog GmbHHostingIPv44
AS59919Brainbox S.r.l.ResidentialIPv44
AS49673Truenetwork LLCUnclassifiedIPv44
AS8280SYNAPSECOM S.A. Provider of Telecommunications and Internet ServicesHostingIPv4 IPv64
AS37100SEACOM LimitedUnclassifiedIPv43
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv63
AS29632Netassist International EOODUnclassifiedIPv62
AS9002RETN LimitedUnclassifiedIPv61
AS6830Liberty Global Europe Holding B.V.ResidentialIPv41
AS201054Stowarzyszenie e-PoludnieUnclassifiedIPv61
AS15935ha-vel internet s.r.o.UnclassifiedIPv41
AS12389PJSC RostelecomResidentialIPv41
AS42708Glesys ABUnclassifiedIPv41
AS1257Tele2 Sverige ABMobileIPv41
AS56655Gigahost ASUnclassifiedIPv61
AS1273IDDQD-ASBusinessIPv41
AS213241TECHIT.BE SRLResidentialIPv61
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv41

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.

Transit

Downstream networks

inferred

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 IPv66,335
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv4 IPv61,607
AS31554LANSOFT DATA SRLUnclassifiedIPv4 IPv6850
AS48040Fornex Hosting S.L.UnclassifiedIPv4736
AS68233C1B Telekomunikasyon ve Internet Hiz. San. ve Tic. A.S.ResidentialIPv4 IPv6564
AS203919LUMADOCK LTDUnclassifiedIPv4549
AS202813LIBERATEL COMUNICACIONES, S.L.ResidentialIPv4 IPv6528
AS63473HostHatch, LLCUnclassifiedIPv4 IPv6523
AS61071NETBOX LTDUnclassifiedIPv4467
AS214271QT NETWORK LTDUnclassifiedIPv4427
AS15731InterLIR GmbHUnclassifiedIPv4427
AS20722Allnet Cloud SrlResidentialIPv4421
AS203380DA International Group Ltd.UnclassifiedIPv4413
AS62390NexonHost SrlHostingIPv4401
AS34450Net Gate Telecom S.R.L.UnclassifiedIPv4386
AS37693OOREDOO TUNISIE SAMobileIPv4363
AS44051Fornex Hosting S.L.HostingIPv4328
AS214209Internet Magnate (Pty) LtdUnclassifiedIPv4 IPv6279
AS44592SkyLink Data Center BVHostingIPv4269
AS58022Smart Agency S.R.L.UnclassifiedIPv4245
AS200367Ntens LTDUnclassifiedIPv4244
AS215674Brookplus LimitedUnclassifiedIPv4244
AS16003Fornex Hosting S.L.UnclassifiedIPv4232
AS200303LUMASERV GmbHUnclassifiedIPv4 IPv6231
AS51202NUXOA GmbHUnclassifiedIPv4 IPv6201
AS50581Ukrainian Telecommunication Group LLCUnclassifiedIPv4 IPv6192
AS203929NEXT LEVEL BUSINESS SRLUnclassifiedIPv4184
AS214879STANISLAV SAVOVUnclassifiedIPv4183
AS400909TRAVCHIS, LLCUnclassifiedIPv4183
AS216253Interhive OUUnclassifiedIPv4183
AS213871NexonHost SRLUnclassifiedIPv4183
AS213737AYOSOFT LTDUnclassifiedIPv4 IPv6166
AS200019ALEXHOST SRLUnclassifiedIPv4 IPv6147
AS37492Orange TunisieUnclassifiedIPv4 IPv6145
AS50357SPEEDNET INTER SOLUTIONS SRLUnclassifiedIPv4135
AS60345icixs networks GmbHUnclassifiedIPv4128
AS214795LACHEZAR CHOLAKOVUnclassifiedIPv4122
AS219377Roman KotovUnclassifiedIPv4122
AS207359Tochka Network LLCUnclassifiedIPv4122
AS197173HIGHLIGHT APPS LTDUnclassifiedIPv4121
AS34538QUICK NET SRLUnclassifiedIPv4120
AS33977Banat Telecom Satelit S.R.L.UnclassifiedIPv4118
AS213527Lorenz Knak trading as IT-adjutor GmbHUnclassifiedIPv4 IPv6117
AS41494Asociatia InterlanUnclassifiedIPv4 IPv6112
AS215853Bonfortuna LtdUnclassifiedIPv4109
AS44103The Mastermind Holding B.V.UnclassifiedIPv4 IPv6106
AS39560KT-NET Communications GmbHUnclassifiedIPv4 IPv698
AS34696MISMELINK NETWORKS, SLUnclassifiedIPv493
AS31362NETPROTECT SRLUnclassifiedIPv484
AS50049RedSwitchesHostingIPv478
AS48453CNETWORK SRLUnclassifiedIPv471
AS56746SIMULTANEOUS NETWORK PROTOCOL S.R.L.ResidentialIPv4 IPv671
AS60982X-ZONE IT SRLUnclassifiedIPv461
AS50200INTERKVM HOST SRLUnclassifiedIPv461
AS58612INTERKVM HOST SRLUnclassifiedIPv461
AS198789Speedy IP Services LTDUnclassifiedIPv461
AS219113Databridges Technologies Ltd.UnclassifiedIPv460
AS214379South Park Networks LLCUnclassifiedIPv4 IPv659
AS215230DevGeeks SRLResidentialIPv4 IPv651
AS211358Patrizio PalumboUnclassifiedIPv646
AS50886NETFIL SRLResidentialIPv445
AS219429TA Consulting & Services UGUnclassifiedIPv445
AS27523Kawaii Networks LLCUnclassifiedIPv4 IPv645
AS205941Lungu Stefan GabrielUnclassifiedIPv4 IPv644
AS49298SC Soft-Tech SRLUnclassifiedIPv437
AS51799FIDELNET SRLUnclassifiedIPv436
AS214757Jakub KrsaUnclassifiedIPv635
AS214941UPCELL TELEKOMUNIKASYON LIMITED SIRKETIUnclassifiedIPv635
AS34927iFog GmbHHostingIPv633
AS62161PRO-PING d.o.o.ResidentialIPv433
AS28684Conect Intercom SRLUnclassifiedIPv431
AS214675Hidenori MatsuoUnclassifiedIPv4 IPv629
AS30823aurologic GmbHHostingIPv428
AS50763Robert McKayUnclassifiedIPv4 IPv626
AS213576Robert WeirUnclassifiedIPv4 IPv619
AS60733ZORAN PEROVIC trading as Agencija Perke.NETHostingIPv4 IPv619
AS213791XeniaGroup SRLResidentialIPv417
AS212895Johannes ErnstUnclassifiedIPv4 IPv617
AS44324MoeDove LLCResidentialIPv615
AS200031Netcity Sp. z o.o.ResidentialIPv46
AS204457Atlantis Telekomunikasyon Bilisim Hizmetleri San. ve Tic. Ltd. Sti.ResidentialIPv46
AS214809Jere Kiitola trading as StocadeUnclassifiedIPv4 IPv65
AS211623NAML B.V.HostingIPv43
AS42490ZETO-RZESZOW Sp. z o.o.ResidentialIPv42
AS38942Centrum Uslug Komputerowych GROT sp. z o.o.ResidentialIPv42
AS13335Cloudflare, Inc.HostingIPv42
AS48626Mediasat s.c.UnclassifiedIPv42
AS57978Digi Com ISP Radoslaw SikoraUnclassifiedIPv42
AS37468Angola CablesUnclassifiedIPv41
AS132203Tencent Building, Kejizhongyi AvenueHostingIPv41
AS20326TeraSwitch Networks Inc.UnclassifiedIPv41
AS16171Fulnett LimitedUnclassifiedIPv41
AS210644AEZA GROUP LLCUnclassifiedIPv61

Adjacency

Adjacent networks

150 shown

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

ASNetworkTypeFamiliesPaths seen
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv4 IPv613,378
AS1299Arelion Sweden ABTransitIPv4 IPv611,327
AS25198INTERKVM HOST SRLHostingIPv4 IPv66,341
AS3257GTT Communications Inc.TransitIPv4 IPv66,220
AS2914NTT America, Inc.TransitIPv46,054
AS44592SkyLink Data Center BVHostingIPv45,038
AS6939Hurricane Electric LLCTransitIPv4 IPv62,164
AS50304Blix Solutions ASUnclassifiedIPv4 IPv62,030
AS5511Orange S.A.TransitIPv4 IPv61,679
AS42708Glesys ABUnclassifiedIPv4 IPv61,391
AS31554LANSOFT DATA SRLUnclassifiedIPv4 IPv61,070
AS34696MISMELINK NETWORKS, SLUnclassifiedIPv41,023
AS61071NETBOX LTDUnclassifiedIPv4770
AS15935ha-vel internet s.r.o.UnclassifiedIPv4766
AS174Cogent Communications, LLCTransitIPv4762
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6759
AS48040Fornex Hosting S.L.UnclassifiedIPv4736
AS50581Ukrainian Telecommunication Group LLCUnclassifiedIPv4 IPv6702
AS68233C1B Telekomunikasyon ve Internet Hiz. San. ve Tic. A.S.ResidentialIPv4 IPv6666
AS51202NUXOA GmbHUnclassifiedIPv4 IPv6625
AS8280SYNAPSECOM S.A. Provider of Telecommunications and Internet ServicesHostingIPv4 IPv6591
AS214209Internet Magnate (Pty) LtdUnclassifiedIPv4 IPv6583
AS29504Freenet Liberec, z.s.UnclassifiedIPv4 IPv6576
AS201054Stowarzyszenie e-PoludnieUnclassifiedIPv6551
AS203919LUMADOCK LTDUnclassifiedIPv4549
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv6546
AS20722Allnet Cloud SrlResidentialIPv4538
AS62000SERVERD SASResidentialIPv4523
AS63473HostHatch, LLCUnclassifiedIPv4 IPv6523
AS29632Netassist International EOODUnclassifiedIPv6509
AS202813LIBERATEL COMUNICACIONES, S.L.ResidentialIPv4504
AS202520SkyPass Solutions Sp. z.o.o.HostingIPv4497
AS30823aurologic GmbHHostingIPv4492
AS62390NexonHost SrlHostingIPv4486
AS57463NetIX Communications JSCUnclassifiedIPv4460
AS15731InterLIR GmbHUnclassifiedIPv4427
AS214271QT NETWORK LTDUnclassifiedIPv4427
AS34450Net Gate Telecom S.R.L.UnclassifiedIPv4426
AS203380DA International Group Ltd.UnclassifiedIPv4413
AS41494Asociatia InterlanUnclassifiedIPv4391
AS204092Association GRIFONUnclassifiedIPv4 IPv6389
AS50673Serverius Holding B.V.UnclassifiedIPv4380
AS37693OOREDOO TUNISIE SAMobileIPv4364
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4358
AS44051Fornex Hosting S.L.HostingIPv4328
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv6323
AS213241TECHIT.BE SRLResidentialIPv6292
AS24482SG.GSHostingIPv4 IPv6291
AS60345icixs networks GmbHUnclassifiedIPv4278
AS27523Kawaii Networks LLCUnclassifiedIPv4 IPv6260
AS58022Smart Agency S.R.L.UnclassifiedIPv4245
AS200367Ntens LTDUnclassifiedIPv4244
AS215674Brookplus LimitedUnclassifiedIPv4244
AS6696VERIXI SAUnclassifiedIPv4242
AS16003Fornex Hosting S.L.UnclassifiedIPv4232
AS48185team.blue NVUnclassifiedIPv4 IPv6226
AS1836green.ch AGResidentialIPv4 IPv6222
AS44103The Mastermind Holding B.V.UnclassifiedIPv4 IPv6218
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv6212
AS200303LUMASERV GmbHUnclassifiedIPv4206
AS213527Lorenz Knak trading as IT-adjutor GmbHUnclassifiedIPv4 IPv6205
AS37721Virtual Technologies & SolutionsResidentialIPv4201
AS203929NEXT LEVEL BUSINESS SRLUnclassifiedIPv4184
AS400909TRAVCHIS, LLCUnclassifiedIPv4183
AS214879STANISLAV SAVOVUnclassifiedIPv4183
AS213871NexonHost SRLUnclassifiedIPv4183
AS216253Interhive OUUnclassifiedIPv4183
AS49673Truenetwork LLCUnclassifiedIPv4181
AS34538QUICK NET SRLUnclassifiedIPv4176
AS205941Lungu Stefan GabrielUnclassifiedIPv6176
AS56655Gigahost ASUnclassifiedIPv4 IPv6168
AS6830Liberty Global Europe Holding B.V.ResidentialIPv4166
AS213737AYOSOFT LTDUnclassifiedIPv4 IPv6166
AS37100SEACOM LimitedUnclassifiedIPv4163
AS198064ZEROPACKETS LTDUnclassifiedIPv4154
AS12552GlobalConnect ABUnclassifiedIPv4153
AS37492Orange TunisieUnclassifiedIPv4138
AS50357SPEEDNET INTER SOLUTIONS SRLUnclassifiedIPv4135
AS59919Brainbox S.r.l.ResidentialIPv4133
AS34927iFog GmbHHostingIPv4127
AS214795LACHEZAR CHOLAKOVUnclassifiedIPv4122
AS219377Roman KotovUnclassifiedIPv4122
AS207359Tochka Network LLCUnclassifiedIPv4122
AS197173HIGHLIGHT APPS LTDUnclassifiedIPv4121
AS33977Banat Telecom Satelit S.R.L.UnclassifiedIPv4120
AS212024Marc SchmittUnclassifiedIPv4116
AS200019ALEXHOST SRLUnclassifiedIPv4112
AS212895Johannes ErnstUnclassifiedIPv6111
AS215853Bonfortuna LtdUnclassifiedIPv4109
AS12389PJSC RostelecomResidentialIPv4106
AS50300CustodianDC LimitedUnclassifiedIPv4104
AS12779IT.Gate S.p.A.UnclassifiedIPv4103
AS1257Tele2 Sverige ABMobileIPv4100
AS39560KT-NET Communications GmbHUnclassifiedIPv496
AS3741Dimension DataUnclassifiedIPv495
AS9002RETN LimitedUnclassifiedIPv687
AS214762Sebastian Stefanek trading as MatHost.euHostingIPv486
AS214757Jakub KrsaUnclassifiedIPv4 IPv685
AS31362NETPROTECT SRLUnclassifiedIPv484
AS50049RedSwitchesHostingIPv482
AS48453CNETWORK SRLUnclassifiedIPv471
AS12956TELEFONICA GLOBAL SOLUTIONS SLTransitIPv471
AS13004Serbian Open Exchange DOOUnclassifiedIPv466
AS198789Speedy IP Services LTDUnclassifiedIPv461
AS60982X-ZONE IT SRLUnclassifiedIPv461
AS58612INTERKVM HOST SRLUnclassifiedIPv461
AS50200INTERKVM HOST SRLUnclassifiedIPv461
AS219113Databridges Technologies Ltd.UnclassifiedIPv460
AS211358Patrizio PalumboUnclassifiedIPv655
AS56746SIMULTANEOUS NETWORK PROTOCOL S.R.L.ResidentialIPv450
AS204457Atlantis Telekomunikasyon Bilisim Hizmetleri San. ve Tic. Ltd. Sti.ResidentialIPv446
AS215230DevGeeks SRLResidentialIPv446
AS219429TA Consulting & Services UGUnclassifiedIPv445
AS50886NETFIL SRLResidentialIPv445
AS49298SC Soft-Tech SRLUnclassifiedIPv437
AS214809Jere Kiitola trading as StocadeUnclassifiedIPv436
AS51799FIDELNET SRLUnclassifiedIPv436

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.

Interconnection

Exchange presence

recorded

Internet exchanges where Packet Clearing House has a port recorded for AS6204, largest fabric first. An exchange is shared switching where networks interconnect directly rather than paying a transit provider to carry traffic between them, so turning up at one is a deliberate choice about how this network wants to be reached. Each name opens that exchange's own page, with its peering LANs and every other network recorded on it. Recorded at 24 exchanges across 15 countries and 2 regions.

ExchangeLocationTheir addressMember ports
DE-CIX FrankfurtFrankfurt, Germany80.81.196.2471,073
LINX LON1London, United Kingdom195.66.224.209925
AMS-IX AmsterdamAmsterdam, Netherlands80.249.214.200894
Neutral Internet ExchangeAmsterdam, Netherlands193.239.117.63665
TPIX - Internet ExchangeWarsaw, Poland195.149.233.156462
Milan Internet ExchangeMilan, Italy217.29.67.192416
Equinix Internet Exchange AshburnAshburn, United States206.126.237.217388
London Network Access PointLondon, United Kingdom5.57.82.41316
NetIXSofia, Bulgaria185.1.226.165264
NetIX GreeceThessaloniki, Greece185.0.28.29256
Peering.czPrague, Czech Republic185.0.20.31212
ERA-IX AmsterdamAmsterdam, Netherlands185.1.240.72193
Vienna Internet ExchangeVienna, Austria193.203.0.79188
ESpanix Madrid Lower LANMadrid, Spain193.149.1.229177
InterLAN-IXBucharest, Romania86.104.125.95151
Nine IXParis, France185.1.14.173149
Bulgarian Internet eXchangeSofia, Bulgaria193.169.199.71137
Internet Neutral Exchange Association CLG - LAN1Dublin, Ireland185.6.36.149115
LayerSwitch Internet ExchangeThe Hague, Netherlands185.1.32.79105
ERA-IX FrankfurtFrankfurt, Germany185.0.27.983
IXPlay Global PeersMadrid, Spain185.1.90.10562
Serbian Open ExchangeBelgrade, Serbia185.1.27.13051
ERA-IX ParisParis, France195.60.85.13317
ERA-IX ViennaVienna, Austria91.213.211.13515

Unlike the tables above, this is recorded rather than inferred. An address on a peering LAN is at that exchange by definition. Two carve-outs all the same. Member ports counts every participant at the exchange, not this network's ports, so read it as a size proxy. And an absent exchange means PCH has no record of it, not that the network is not there.

Provenance

Where this comes from

Derived from routing tables collected at 2026-08-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.02M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.

Exchange presence comes from a separate dataset: the directory collected 2026-08-09 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,164 recorded member ports, licensed CC BY-NC-SA 3.0.

PeeringDB is the better-known directory and is deliberately not the source here: its acceptable-use policy forbids the bulk storage this needs. The two answer different questions anyway. PeeringDB reports what an operator declares about itself; this reports what PCH has recorded.