asn.dev

Observed topology

AS12843 TELEMAXX

Upstreams 21 carry this network
Downstreams 33 this network carries
Adjacent (IPv4) 53
Adjacent (IPv6) 27

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS12843: 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
AS174Cogent Communications, LLCTransitIPv4 IPv61,112
AS2914NTT America, Inc.TransitIPv4 IPv6798
AS6939Hurricane Electric LLCTransitIPv4 IPv6666
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6220
AS9002RETN LimitedUnclassifiedIPv4164
AS3320Deutsche Telekom AGMobileIPv4 IPv699
AS24482SG.GSHostingIPv4 IPv664
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv664
AS212024Marc SchmittUnclassifiedIPv4 IPv664
AS34019Hivane AssociationUnclassifiedIPv452
AS20485Joint Stock Company TransTeleComUnclassifiedIPv452
AS17639Converge ICT Solutions Inc.UnclassifiedIPv452
AS37100SEACOM LimitedUnclassifiedIPv452
AS57463NetIX Communications JSCUnclassifiedIPv452
AS12552GlobalConnect ABUnclassifiedIPv452
AS37721Virtual Technologies & SolutionsResidentialIPv452
AS1836green.ch AGResidentialIPv452
AS29632Netassist International EOODUnclassifiedIPv624
AS12859BIT BVHostingIPv412
AS56662Marcin GondekUnclassifiedIPv612
AS213241TECHIT.BE SRLResidentialIPv612

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 AS12843 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS25579SKYTRON Communications GmbH & Co KGUnclassifiedIPv4 IPv62,018
AS57224reputatio AGUnclassifiedIPv4230
AS205908wareconsult Verwaltungs GmbH trading as wareconsult GmbH & Co. KGUnclassifiedIPv4 IPv6196
AS200941vioma GmbHUnclassifiedIPv4 IPv6194
AS3278SEW-EURODRIVE GmbH & Co KGUnclassifiedIPv4128
AS44152adesso as a service GmbHUnclassifiedIPv4120
AS202040SCT Schiele GmbHUnclassifiedIPv4 IPv6119
AS21234GRENKE Service GmbHUnclassifiedIPv4 IPv699
AS205046FZI Forschungszentrum InformatikUnclassifiedIPv4 IPv690
AS20849CONTINUM AGHostingIPv4 IPv682
AS60481Deutsche Zentrale fur Tourismus e.V. DZTUnclassifiedIPv4 IPv676
AS29682FoerderbankUnclassifiedIPv4 IPv673
AS29236Schweickert GmbHUnclassifiedIPv4 IPv671
AS41699MLP Banking AGUnclassifiedIPv461
AS13054badenIT GmbHResidentialIPv4 IPv661
AS31735UNISERV GmbHUnclassifiedIPv460
AS210795Freudenberg SEUnclassifiedIPv460
AS215996TelemaxX Telekommunikation GmbHUnclassifiedIPv460
AS210424Dominik Bender trading as db IT SolutionsUnclassifiedIPv460
AS35309Nero AGUnclassifiedIPv460
AS202661NetPlans GmbHHostingIPv4 IPv652
AS20795AOE FinTech GmbHUnclassifiedIPv451
AS202113plan b. solutions GmbHUnclassifiedIPv4 IPv648
AS41431COMBACK GmbHUnclassifiedIPv445
AS13040Leibniz-Institut fuer Informationsinfrastruktur GmbHUnclassifiedIPv444
AS207706Hans-Peter Fischer trading as Fischer group SE & Co. KG"UnclassifiedIPv442
AS202462Mineraloelraffinerie Oberrhein GmbH & Co KGUnclassifiedIPv4 IPv642
AS215775StarTUP Holding GmbHUnclassifiedIPv441
AS47372Bringe Informationstechnik GmbHHostingIPv434
AS207572Stadtwerke Baden-BadenUnclassifiedIPv420
AS210333Inter Krankenversicherung AGUnclassifiedIPv419
AS205390TectiQom Information Technology GmbHUnclassifiedIPv48
AS25081Heidelberg IT Management GmbH & Co.KGUnclassifiedIPv45

Adjacency

Adjacent networks

80 shown

Every AS seen directly next to AS12843 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv62,388
AS25579SKYTRON Communications GmbH & Co KGUnclassifiedIPv4 IPv62,018
AS2914NTT America, Inc.TransitIPv4 IPv61,826
AS6939Hurricane Electric LLCTransitIPv4 IPv61,490
AS9002RETN LimitedUnclassifiedIPv4446
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6438
AS57224reputatio AGUnclassifiedIPv4230
AS3320Deutsche Telekom AGMobileIPv4 IPv6210
AS205908wareconsult Verwaltungs GmbH trading as wareconsult GmbH & Co. KGUnclassifiedIPv4 IPv6196
AS200941vioma GmbHUnclassifiedIPv4 IPv6194
AS13054badenIT GmbHResidentialIPv4 IPv6162
AS212024Marc SchmittUnclassifiedIPv4 IPv6142
AS24482SG.GSHostingIPv4 IPv6138
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv6131
AS3278SEW-EURODRIVE GmbH & Co KGUnclassifiedIPv4128
AS44152adesso as a service GmbHUnclassifiedIPv4120
AS57463NetIX Communications JSCUnclassifiedIPv4119
AS202040SCT Schiele GmbHUnclassifiedIPv4 IPv6119
AS37100SEACOM LimitedUnclassifiedIPv4118
AS1836green.ch AGResidentialIPv4117
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv6117
AS20485Joint Stock Company TransTeleComUnclassifiedIPv4116
AS34019Hivane AssociationUnclassifiedIPv4108
AS12552GlobalConnect ABUnclassifiedIPv4108
AS21234GRENKE Service GmbHUnclassifiedIPv4 IPv699
AS205046FZI Forschungszentrum InformatikUnclassifiedIPv4 IPv690
AS20849CONTINUM AGHostingIPv4 IPv682
AS60481Deutsche Zentrale fur Tourismus e.V. DZTUnclassifiedIPv4 IPv676
AS29682FoerderbankUnclassifiedIPv4 IPv673
AS29236Schweickert GmbHUnclassifiedIPv4 IPv671
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv666
AS41699MLP Banking AGUnclassifiedIPv461
AS210424Dominik Bender trading as db IT SolutionsUnclassifiedIPv460
AS210795Freudenberg SEUnclassifiedIPv460
AS215996TelemaxX Telekommunikation GmbHUnclassifiedIPv460
AS31735UNISERV GmbHUnclassifiedIPv460
AS35309Nero AGUnclassifiedIPv460
AS29632Netassist International EOODUnclassifiedIPv652
AS202661NetPlans GmbHHostingIPv4 IPv652
AS20795AOE FinTech GmbHUnclassifiedIPv451
AS202113plan b. solutions GmbHUnclassifiedIPv4 IPv648
AS41431COMBACK GmbHUnclassifiedIPv445
AS13040Leibniz-Institut fuer Informationsinfrastruktur GmbHUnclassifiedIPv444
AS207706Hans-Peter Fischer trading as Fischer group SE & Co. KG"UnclassifiedIPv442
AS202462Mineraloelraffinerie Oberrhein GmbH & Co KGUnclassifiedIPv4 IPv642
AS47372Bringe Informationstechnik GmbHHostingIPv441
AS215775StarTUP Holding GmbHUnclassifiedIPv441
AS56662Marcin GondekUnclassifiedIPv626
AS213241TECHIT.BE SRLResidentialIPv626
AS207572Stadtwerke Baden-BadenUnclassifiedIPv420
AS210333Inter Krankenversicherung AGUnclassifiedIPv419
AS12859BIT BVHostingIPv413
AS205390TectiQom Information Technology GmbHUnclassifiedIPv48
AS29075IELO-LIAZO SERVICES SASUnclassifiedIPv47
AS25081Heidelberg IT Management GmbH & Co.KGUnclassifiedIPv47
AS33891Core-Backbone GmbHHostingIPv44

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 AS12843, 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 1 exchange across 1 country and 1 region.

ExchangeLocationTheir addressMember ports
DE-CIX FrankfurtFrankfurt, Germany80.81.193.1981,073

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 2026-08-08 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,137 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.