asn.dev

Observed topology

AS34288 AS34288 EDU-ZG-CH - Public Schools in the Canton of Zug

Upstreams 34 carry this network
Downstreams 3 this network carries
Adjacent (IPv4) 31
Adjacent (IPv6) 23

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS34288: 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
AS51907Kanton ZugUnclassifiedIPv4 IPv667
AS15576NTS workspace AGUnclassifiedIPv4 IPv638
AS6939Hurricane Electric LLCTransitIPv430
AS174Cogent Communications, LLCTransitIPv4 IPv626
AS1299Arelion Sweden ABTransitIPv4 IPv624
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv622
AS9002RETN LimitedUnclassifiedIPv4 IPv622
AS8218Zayo Infrastructure France SAUnclassifiedIPv420
AS50673Serverius Holding B.V.UnclassifiedIPv410
AS50304Blix Solutions ASUnclassifiedIPv410
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv67
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv67
AS24482SG.GSHostingIPv4 IPv67
AS15935ha-vel internet s.r.o.UnclassifiedIPv4 IPv67
AS48185team.blue NVUnclassifiedIPv4 IPv67
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv67
AS212024Marc SchmittUnclassifiedIPv4 IPv67
AS50628Leonix Telecom SASUnclassifiedIPv4 IPv67
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv67
AS1836green.ch AGResidentialIPv4 IPv66
AS4637Telstra GlobalUnclassifiedIPv45
AS20485Joint Stock Company TransTeleComUnclassifiedIPv45
AS37721Virtual Technologies & SolutionsResidentialIPv45
AS3303Swisscom (Schweiz) AGResidentialIPv45
AS3741Dimension DataUnclassifiedIPv45
AS12552GlobalConnect ABUnclassifiedIPv45
AS37100SEACOM LimitedUnclassifiedIPv45
AS20766Association "Gitoyen"UnclassifiedIPv45
AS56655Gigahost ASUnclassifiedIPv45
AS29632Netassist International EOODUnclassifiedIPv64
AS34019Hivane AssociationUnclassifiedIPv62
AS56662Marcin GondekUnclassifiedIPv62
AS42708Glesys ABUnclassifiedIPv62
AS213241TECHIT.BE SRLResidentialIPv62

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 AS34288 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS21269Christian Wittenhorst trading as Progon Network EngineeringUnclassifiedIPv4 IPv6163
AS12553Andreas GrawehrUnclassifiedIPv439
AS51907Kanton ZugUnclassifiedIPv4 IPv621

Adjacency

Adjacent networks

56 shown

Every AS seen directly next to AS34288 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS21269Christian Wittenhorst trading as Progon Network EngineeringUnclassifiedIPv4 IPv6163
AS51907Kanton ZugUnclassifiedIPv4 IPv6123
AS15576NTS workspace AGUnclassifiedIPv4 IPv664
AS174Cogent Communications, LLCTransitIPv4 IPv648
AS1299Arelion Sweden ABTransitIPv4 IPv643
AS6939Hurricane Electric LLCTransitIPv442
AS12553Andreas GrawehrUnclassifiedIPv439
AS9002RETN LimitedUnclassifiedIPv4 IPv639
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv632
AS8218Zayo Infrastructure France SAUnclassifiedIPv425
AS50304Blix Solutions ASUnclassifiedIPv416
AS50673Serverius Holding B.V.UnclassifiedIPv416
AS50628Leonix Telecom SASUnclassifiedIPv4 IPv613
AS15935ha-vel internet s.r.o.UnclassifiedIPv4 IPv613
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv611
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv611
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv611
AS24482SG.GSHostingIPv4 IPv610
AS212024Marc SchmittUnclassifiedIPv4 IPv610
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv69
AS4637Telstra GlobalUnclassifiedIPv48
AS12552GlobalConnect ABUnclassifiedIPv48
AS56655Gigahost ASUnclassifiedIPv48
AS37100SEACOM LimitedUnclassifiedIPv48
AS3741Dimension DataUnclassifiedIPv48
AS37721Virtual Technologies & SolutionsResidentialIPv48
AS20485Joint Stock Company TransTeleComUnclassifiedIPv48
AS1836green.ch AGResidentialIPv4 IPv68
AS20766Association "Gitoyen"UnclassifiedIPv47
AS48185team.blue NVUnclassifiedIPv4 IPv67
AS29632Netassist International EOODUnclassifiedIPv66
AS3303Swisscom (Schweiz) AGResidentialIPv45
AS42708Glesys ABUnclassifiedIPv64
AS34019Hivane AssociationUnclassifiedIPv63
AS213241TECHIT.BE SRLResidentialIPv63
AS56662Marcin GondekUnclassifiedIPv63
AS58115SwissIX Internet ExchangeUnclassifiedIPv61

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 AS34288, 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 7 exchanges across 6 countries and 1 region.

ExchangeLocationTheir addressMember ports
DE-CIX FrankfurtFrankfurt, Germany80.81.194.1191,073
LINX LON1London, United Kingdom195.66.225.86925
AMS-IX AmsterdamAmsterdam, Netherlands80.249.209.29894
France-IX ParisParis, France37.49.238.193570
SwissIXZurich, Switzerland91.206.52.71253
Vienna Internet ExchangeVienna, Austria193.203.0.226188
Equinix Internet Exchange ZurichZurich, Switzerland194.42.48.13144

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.