asn.dev

Observed topology

AS21385 TNIB Trusted Network GmbH

Upstreams 31 carry this network
Downstreams 9 this network carries
Adjacent (IPv4) 37
Adjacent (IPv6) 26

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS21385: 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
AS3356Level 3 Parent, LLCTransitIPv4 IPv6213
AS6939Hurricane Electric LLCTransitIPv4 IPv6111
AS1299Arelion Sweden ABTransitIPv4 IPv693
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv654
AS3320Deutsche Telekom AGMobileIPv4 IPv629
AS33891Core-Backbone GmbHHostingIPv428
AS22652Videotron LteeResidentialIPv4 IPv623
AS24482SG.GSHostingIPv4 IPv614
AS57463NetIX Communications JSCUnclassifiedIPv413
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv613
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv612
AS42708Glesys ABUnclassifiedIPv4 IPv612
AS1836green.ch AGResidentialIPv4 IPv612
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv612
AS212024Marc SchmittUnclassifiedIPv4 IPv612
AS34019Hivane AssociationUnclassifiedIPv4 IPv612
AS12859BIT BVHostingIPv4 IPv612
AS15935ha-vel internet s.r.o.UnclassifiedIPv4 IPv612
AS12779IT.Gate S.p.A.UnclassifiedIPv411
AS37100SEACOM LimitedUnclassifiedIPv411
AS12552GlobalConnect ABUnclassifiedIPv411
AS3303Swisscom (Schweiz) AGResidentialIPv411
AS20485Joint Stock Company TransTeleComUnclassifiedIPv411
AS32097WholeSale Internet, Inc.HostingIPv410
AS31543myNet GmbHResidentialIPv42
AS25091IP-Max SAUnclassifiedIPv42
AS29632Netassist International EOODUnclassifiedIPv62
AS20562Broadband Hosting B.V.HostingIPv42
AS213241TECHIT.BE SRLResidentialIPv61
AS9002RETN LimitedUnclassifiedIPv61
AS56662Marcin GondekUnclassifiedIPv61

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 AS21385 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS25504Vautron Rechenzentrum AGHostingIPv4 IPv6942
AS21476all-connect Data Communications GmbHHostingIPv4 IPv6594
AS12907ip&more GmbHUnclassifiedIPv4 IPv688
AS51483SaSG GmbH & Co. KGHostingIPv4 IPv674
AS198296Burda Digital Systems GmbHUnclassifiedIPv4 IPv669
AS394977TAKE-TWO INTERACTIVE SOFTWARE, INC.UnclassifiedIPv459
AS48484IGN GmbHUnclassifiedIPv438
AS8319NETHINKS GmbHUnclassifiedIPv424
AS20751AZISTA GmbHUnclassifiedIPv418

Adjacency

Adjacent networks

63 shown

Every AS seen directly next to AS21385 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS25504Vautron Rechenzentrum AGHostingIPv4 IPv61,101
AS3356Level 3 Parent, LLCTransitIPv4 IPv6858
AS21476all-connect Data Communications GmbHHostingIPv4 IPv6594
AS1299Arelion Sweden ABTransitIPv4 IPv6565
AS6939Hurricane Electric LLCTransitIPv4 IPv6295
AS3320Deutsche Telekom AGMobileIPv4 IPv6220
AS22652Videotron LteeResidentialIPv4 IPv6146
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6133
AS12907ip&more GmbHUnclassifiedIPv4 IPv688
AS48484IGN GmbHUnclassifiedIPv476
AS51483SaSG GmbH & Co. KGHostingIPv4 IPv674
AS198296Burda Digital Systems GmbHUnclassifiedIPv4 IPv669
AS394977TAKE-TWO INTERACTIVE SOFTWARE, INC.UnclassifiedIPv459
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv653
AS15935ha-vel internet s.r.o.UnclassifiedIPv4 IPv650
AS33891Core-Backbone GmbHHostingIPv448
AS42708Glesys ABUnclassifiedIPv4 IPv648
AS3303Swisscom (Schweiz) AGResidentialIPv441
AS212024Marc SchmittUnclassifiedIPv4 IPv641
AS57463NetIX Communications JSCUnclassifiedIPv440
AS24482SG.GSHostingIPv4 IPv638
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv638
AS34019Hivane AssociationUnclassifiedIPv4 IPv636
AS12552GlobalConnect ABUnclassifiedIPv434
AS12779IT.Gate S.p.A.UnclassifiedIPv434
AS37100SEACOM LimitedUnclassifiedIPv434
AS20485Joint Stock Company TransTeleComUnclassifiedIPv434
AS8319NETHINKS GmbHUnclassifiedIPv429
AS20751AZISTA GmbHUnclassifiedIPv418
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv618
AS1836green.ch AGResidentialIPv4 IPv616
AS29632Netassist International EOODUnclassifiedIPv615
AS12859BIT BVHostingIPv4 IPv612
AS32097WholeSale Internet, Inc.HostingIPv410
AS213241TECHIT.BE SRLResidentialIPv66
AS56662Marcin GondekUnclassifiedIPv64
AS5539SpaceNet AGUnclassifiedIPv4 IPv64
AS20562Broadband Hosting B.V.HostingIPv42
AS9002RETN LimitedUnclassifiedIPv62
AS31543myNet GmbHResidentialIPv42
AS25091IP-Max SAUnclassifiedIPv42

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 AS21385, 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 3 countries and 2 regions.

ExchangeLocationTheir addressMember ports
DE-CIX FrankfurtFrankfurt, Germany80.81.192.791,073
DE-CIX New YorkNew York, United States206.82.104.56279
DE-CIX MunichMunich, Germany185.1.208.24207
DE-CIX HamburgHamburg, Germany185.1.210.3195
Vienna Internet ExchangeVienna, Austria193.203.0.136188
Megaport Frankfurt IXFrankfurt, Germany62.69.146.53114
Megaport Munich IXMunich, Germany194.59.190.2238

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.