asn.dev

Observed topology

AS61438 IP-IT-AS

Upstreams 29 carry this network
Downstreams 3 this network carries
Adjacent (IPv4) 22
Adjacent (IPv6) 22

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS61438: 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
AS47147Anexia Cloud Solutions GmbHUnclassifiedIPv4 IPv6224
AS39912oja.at GmbHUnclassifiedIPv4 IPv6106
AS33891Core-Backbone GmbHHostingIPv4 IPv695
AS6939Hurricane Electric LLCTransitIPv4 IPv658
AS9002RETN LimitedUnclassifiedIPv66
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv65
AS29632Netassist International EOODUnclassifiedIPv64
AS24482SG.GSHostingIPv4 IPv64
AS213241TECHIT.BE SRLResidentialIPv4 IPv63
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv63
AS50673Serverius Holding B.V.UnclassifiedIPv62
AS212024Marc SchmittUnclassifiedIPv4 IPv62
AS12859BIT BVHostingIPv4 IPv62
AS34019Hivane AssociationUnclassifiedIPv4 IPv62
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv62
AS49666Telecommunication Infrastructure CompanyUnclassifiedIPv41
AS20485Joint Stock Company TransTeleComUnclassifiedIPv41
AS56662Marcin GondekUnclassifiedIPv61
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv61
AS50300CustodianDC LimitedUnclassifiedIPv61
AS48185team.blue NVUnclassifiedIPv61
AS8218Zayo Infrastructure France SAUnclassifiedIPv61
AS37100SEACOM LimitedUnclassifiedIPv41
AS57463NetIX Communications JSCUnclassifiedIPv41
AS12552GlobalConnect ABUnclassifiedIPv41
AS37721Virtual Technologies & SolutionsResidentialIPv41
AS1836green.ch AGResidentialIPv41
AS12779IT.Gate S.p.A.UnclassifiedIPv41
AS44066firstcolo GmbHUnclassifiedIPv41

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 AS61438 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS214517Simon MetzgerUnclassifiedIPv635
AS208818Peter KolodziejUnclassifiedIPv635
AS60767Robert FinzeUnclassifiedIPv414

Adjacency

Adjacent networks

44 shown

Every AS seen directly next to AS61438 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS47147Anexia Cloud Solutions GmbHUnclassifiedIPv4 IPv6224
AS33891Core-Backbone GmbHHostingIPv4 IPv6179
AS39912oja.at GmbHUnclassifiedIPv4 IPv6106
AS6939Hurricane Electric LLCTransitIPv4 IPv658
AS208818Peter KolodziejUnclassifiedIPv635
AS214517Simon MetzgerUnclassifiedIPv635
AS60767Robert FinzeUnclassifiedIPv414
AS9002RETN LimitedUnclassifiedIPv66
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv65
AS29632Netassist International EOODUnclassifiedIPv64
AS24482SG.GSHostingIPv4 IPv64
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv63
AS213241TECHIT.BE SRLResidentialIPv4 IPv63
AS50673Serverius Holding B.V.UnclassifiedIPv62
AS12859BIT BVHostingIPv4 IPv62
AS212024Marc SchmittUnclassifiedIPv4 IPv62
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv62
AS34019Hivane AssociationUnclassifiedIPv4 IPv62
AS37721Virtual Technologies & SolutionsResidentialIPv41
AS56662Marcin GondekUnclassifiedIPv61
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv61
AS12552GlobalConnect ABUnclassifiedIPv41
AS50300CustodianDC LimitedUnclassifiedIPv61
AS48185team.blue NVUnclassifiedIPv61
AS8218Zayo Infrastructure France SAUnclassifiedIPv61
AS37100SEACOM LimitedUnclassifiedIPv41
AS20485Joint Stock Company TransTeleComUnclassifiedIPv41
AS57463NetIX Communications JSCUnclassifiedIPv41
AS1836green.ch AGResidentialIPv41
AS49666Telecommunication Infrastructure CompanyUnclassifiedIPv41
AS44066firstcolo GmbHUnclassifiedIPv41
AS12779IT.Gate S.p.A.UnclassifiedIPv41

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 AS61438, 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 15 exchanges across 10 countries and 2 regions.

ExchangeLocationTheir addressMember ports
DE-CIX FrankfurtFrankfurt, Germany80.81.194.1761,073
AMS-IX AmsterdamAmsterdam, Netherlands80.249.214.69894
KleyReX Internet ExchangeFrankfurt, Germany193.189.82.32475
DE-CIX New YorkNew York, United States206.82.104.240279
DE-CIX MadridMadrid, Spain185.1.192.230229
DE-CIX DusseldorfDüsseldorf, Germany185.1.170.113226
DE-CIX MunichMunich, Germany185.1.208.163207
DE-CIX HamburgHamburg, Germany185.1.210.124195
Berlin Commercial Internet ExchangeBerlin, Germany193.178.185.88152
DE-CIX MarseilleMarseille, France185.1.47.91113
DE-CIX IstanbulIstanbul, Turkey185.1.48.1067
DE-CIX LisbonLisbon, Portugal185.1.131.5163
IRAQ-IXPBaghdad, Iraq128.0.45.2839
DE-CIX PalermoPalermo, Italy185.1.46.2024
Alpes Adria Internet ExchangeKlagenfurt, Austria193.37.144.822

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.