asn.dev

Observed topology

AS28889 LINZNET-AS

Upstreams 22 carry this network
Downstreams 4 this network carries
Adjacent (IPv4) 26
Adjacent (IPv6) 0

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS28889: 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 ABTransitIPv4341
AS8245Video-Broadcast GmbHUnclassifiedIPv4250
AS6939Hurricane Electric LLCTransitIPv490
AS3257GTT Communications Inc.TransitIPv475
AS34549meerfarbig GmbH & Co. KGHostingIPv452
AS35369LINZ STROM GAS WAERME GmbH fuer Energiedienstleistungen und TelekommunikationResidentialIPv432
AS3303Swisscom (Schweiz) AGResidentialIPv416
AS57463NetIX Communications JSCUnclassifiedIPv414
AS48362Stadtwerke FeldkirchResidentialIPv414
AS24482SG.GSHostingIPv413
AS37100SEACOM LimitedUnclassifiedIPv413
AS12552GlobalConnect ABUnclassifiedIPv413
AS34019Hivane AssociationUnclassifiedIPv413
AS17639Converge ICT Solutions Inc.UnclassifiedIPv413
AS20485Joint Stock Company TransTeleComUnclassifiedIPv413
AS212024Marc SchmittUnclassifiedIPv412
AS33891Core-Backbone GmbHHostingIPv410
AS15935ha-vel internet s.r.o.UnclassifiedIPv46
AS37721Virtual Technologies & SolutionsResidentialIPv45
AS1836green.ch AGResidentialIPv45
AS12859BIT BVHostingIPv45
AS12779IT.Gate S.p.A.UnclassifiedIPv45

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 AS28889 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS43848Gamsjaeger Kabel-TV & ISP Betriebs GmbHResidentialIPv4749
AS208350Gamsjaeger Kabel-TV & ISP Betriebs GmbHUnclassifiedIPv465
AS211510Roman Franz Dissauer trading as RDI Solutions e.U.UnclassifiedIPv433
AS204419ITNS GmbHUnclassifiedIPv413

Adjacency

Adjacent networks

26 shown

Every AS seen directly next to AS28889 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4995
AS43848Gamsjaeger Kabel-TV & ISP Betriebs GmbHResidentialIPv4749
AS8245Video-Broadcast GmbHUnclassifiedIPv4346
AS3257GTT Communications Inc.TransitIPv4183
AS6939Hurricane Electric LLCTransitIPv4111
AS211510Roman Franz Dissauer trading as RDI Solutions e.U.UnclassifiedIPv490
AS208350Gamsjaeger Kabel-TV & ISP Betriebs GmbHUnclassifiedIPv465
AS34549meerfarbig GmbH & Co. KGHostingIPv461
AS35369LINZ STROM GAS WAERME GmbH fuer Energiedienstleistungen und TelekommunikationResidentialIPv432
AS3303Swisscom (Schweiz) AGResidentialIPv419
AS48362Stadtwerke FeldkirchResidentialIPv416
AS57463NetIX Communications JSCUnclassifiedIPv416
AS212024Marc SchmittUnclassifiedIPv415
AS37100SEACOM LimitedUnclassifiedIPv415
AS12552GlobalConnect ABUnclassifiedIPv415
AS24482SG.GSHostingIPv415
AS20485Joint Stock Company TransTeleComUnclassifiedIPv415
AS34019Hivane AssociationUnclassifiedIPv414
AS17639Converge ICT Solutions Inc.UnclassifiedIPv413
AS204419ITNS GmbHUnclassifiedIPv413
AS33891Core-Backbone GmbHHostingIPv412
AS15935ha-vel internet s.r.o.UnclassifiedIPv48
AS37721Virtual Technologies & SolutionsResidentialIPv47
AS1836green.ch AGResidentialIPv47
AS12859BIT BVHostingIPv46
AS12779IT.Gate S.p.A.UnclassifiedIPv46

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 AS28889, 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 2 exchanges across 2 countries and 1 region.

ExchangeLocationTheir addressMember ports
DE-CIX FrankfurtFrankfurt, Germany80.81.195.301,073
Vienna Internet ExchangeVienna, Austria193.203.0.107188

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.