asn.dev

Observed topology

AS21413 ENVIA-TEL-AS D-09114 Chemnitz

Residential RIPE

Upstreams 17 carry this network
Downstreams 43 this network carries
Adjacent (IPv4) 57
Adjacent (IPv6) 47
Upstream graph Who carries AS21413, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS21413 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 17

Networks observed carrying traffic for AS21413: 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
AS33891Core-Backbone GmbHHostingIPv4 IPv6897
AS3356Level 3 Parent, LLCTransitIPv4 IPv6563
AS6939Hurricane Electric LLCTransitIPv4 IPv6423
AS9002RETN LimitedUnclassifiedIPv4 IPv6248
AS3320Deutsche Telekom AGMobileIPv4 IPv6212
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6137
AS24482SG.GSHostingIPv4 IPv649
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv649
AS20485Joint Stock Company TransTeleComUnclassifiedIPv444
AS34019Hivane AssociationUnclassifiedIPv444

All 17 upstreams →

Transit

Downstream networks

All 43

Networks for which AS21413 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS58243TELE AGUnclassifiedIPv4 IPv6667
AS205741mitteldeutsche IT GmbHHostingIPv4 IPv6547
AS201600Gemeinschaftsantennenanlage Oberes Sprottental Schmoelln eGUnclassifiedIPv4 IPv6337
AS206978Stadtwerke Meerane GmbHUnclassifiedIPv4 IPv6337
AS200599eins energie in sachsen GmbH & Co. KGUnclassifiedIPv4 IPv6283
AS215876Stadtwerke OELSNITZ/V. GmbHUnclassifiedIPv4 IPv6254
AS13251QiTEC GmbHUnclassifiedIPv4240
AS210285MIBRAG GmbHUnclassifiedIPv4240
AS43329ENTIRETEC AGUnclassifiedIPv4 IPv6231
AS207077Michael KrockorUnclassifiedIPv4 IPv6228

All 43 downstreams →

Adjacency

Adjacent networks

All 62

Every AS seen directly next to AS21413 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS33891Core-Backbone GmbHHostingIPv4 IPv63,337
AS6939Hurricane Electric LLCTransitIPv4 IPv62,091
AS3356Level 3 Parent, LLCTransitIPv4 IPv61,860
AS58243TELE AGUnclassifiedIPv4 IPv61,015
AS9002RETN LimitedUnclassifiedIPv4 IPv6892
AS3320Deutsche Telekom AGMobileIPv4 IPv6618
AS205741mitteldeutsche IT GmbHHostingIPv4 IPv6547
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6406
AS201600Gemeinschaftsantennenanlage Oberes Sprottental Schmoelln eGUnclassifiedIPv4 IPv6337
AS206978Stadtwerke Meerane GmbHUnclassifiedIPv4 IPv6337

All 62 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-21 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M 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.