asn.dev

Observed topology

AS15943 WTNET-AS wilhelm.tel GmbH

Unclassified RIPE Cable/DSL/ISP

Upstreams 33 carry this network
Downstreams 21 this network carries
Adjacent (IPv4) 50
Adjacent (IPv6) 32
Upstream graph Who carries AS15943, and who carries them, drawn as a map up to the transit-free core. 9 exchanges Where AS15943 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 33

Networks observed carrying traffic for AS15943: 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
AS6939Hurricane Electric LLCTransitIPv4 IPv6550
AS2914NTT America, Inc.TransitIPv4 IPv6502
AS3356Level 3 Parent, LLCTransitIPv4434
AS3257GTT Communications Inc.TransitIPv4 IPv6325
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6191
AS1299Arelion Sweden ABTransitIPv4 IPv6188
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4124
AS1836green.ch AGResidentialIPv4 IPv667
AS3320Deutsche Telekom AGMobileIPv4 IPv667
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv667

All 33 upstreams →

Transit

Downstream networks

All 21

Networks for which AS15943 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS200567Wireless Logic mdex GmbHUnclassifiedIPv4 IPv6579
AS60664x-ion GmbHUnclassifiedIPv4253
AS215992MCS GmbHUnclassifiedIPv4 IPv6150
AS199938Netzwerge GmbHUnclassifiedIPv4 IPv6116
AS200978Biesterfeld SEUnclassifiedIPv4 IPv6116
AS50943HHLA Hamburger Hafen und Logistik AGUnclassifiedIPv4 IPv691
AS215229Surecomp Development LtdUnclassifiedIPv490
AS29042Hermes Europe GmbHUnclassifiedIPv482
AS211727Horst Bode Import-Export GmbHUnclassifiedIPv4 IPv677
AS197008ACP IT Solutions AGUnclassifiedIPv475

All 21 downstreams →

Adjacency

Adjacent networks

All 54

Every AS seen directly next to AS15943 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv6846
AS2914NTT America, Inc.TransitIPv4 IPv6778
AS6939Hurricane Electric LLCTransitIPv4 IPv6696
AS200567Wireless Logic mdex GmbHUnclassifiedIPv4 IPv6579
AS1299Arelion Sweden ABTransitIPv4 IPv6450
AS3257GTT Communications Inc.TransitIPv4 IPv6411
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6268
AS60664x-ion GmbHUnclassifiedIPv4253
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4183
AS174Cogent Communications, LLCTransitIPv4 IPv6163

All 54 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

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. 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.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.