asn.dev

Observed topology

AS21473 PFALZKOM Pfalzkom GmbH

Unclassified APNIC

Upstreams 25 carry this network
Downstreams 31 this network carries
Adjacent (IPv4) 54
Adjacent (IPv6) 35
Upstream graph Who carries AS21473, and who carries them, drawn as a map up to the transit-free core. 5 exchanges Where AS21473 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 25

Networks observed carrying traffic for AS21473: 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
AS5405Inter.link GmbHUnclassifiedIPv4 IPv6422
AS1299Arelion Sweden ABTransitIPv4 IPv6361
AS3356Level 3 Parent, LLCTransitIPv4 IPv6325
AS6939Hurricane Electric LLCTransitIPv4 IPv6275
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv693
AS3320Deutsche Telekom AGMobileIPv4 IPv681
AS2914NTT America, Inc.TransitIPv455
AS34309Link11 GmbHUnclassifiedIPv449
AS50304Blix Solutions ASUnclassifiedIPv4 IPv646
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv640

All 25 upstreams →

Transit

Downstream networks

All 31

Networks for which AS21473 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS214319blackpoint GmbHUnclassifiedIPv4 IPv6314
AS61310prego services GmbHUnclassifiedIPv4 IPv6166
AS203604Soluvia IT-Services GmbHUnclassifiedIPv4160
AS35501Deere & Company CorpUnclassifiedIPv4 IPv6143
AS209400KurpfalzTEL GmbHUnclassifiedIPv4 IPv6135
AS43911Tom Merlin EichhornUnclassifiedIPv4 IPv696
AS212226Jana SteuberUnclassifiedIPv4 IPv695
AS56368Nicola von ThaddenUnclassifiedIPv4 IPv682
AS59675mywire Datentechnik GmbHUnclassifiedIPv4 IPv679
AS209781BASF Digital Solutions GmbHUnclassifiedIPv474

All 31 downstreams →

Adjacency

Adjacent networks

All 58

Every AS seen directly next to AS21473 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS5405Inter.link GmbHUnclassifiedIPv4 IPv6870
AS3356Level 3 Parent, LLCTransitIPv4 IPv6753
AS1299Arelion Sweden ABTransitIPv4 IPv6733
AS6939Hurricane Electric LLCTransitIPv4 IPv6503
AS214319blackpoint GmbHUnclassifiedIPv4 IPv6314
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6190
AS3320Deutsche Telekom AGMobileIPv4 IPv6187
AS2914NTT America, Inc.TransitIPv4181
AS12857Manage Now GmbHUnclassifiedIPv4 IPv6175
AS61310prego services GmbHUnclassifiedIPv4 IPv6166

All 58 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-16 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.23M 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.