asn.dev

Observed topology

AS13101 TNG-AS TNG Stadtnetz GmbH

Residential RIPE Cable/DSL/ISP

Upstreams 32 carry this network
Downstreams 12 this network carries
Adjacent (IPv4) 45
Adjacent (IPv6) 34
Upstream graph Who carries AS13101, and who carries them, drawn as a map up to the transit-free core. 10 exchanges Where AS13101 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 32

Networks observed carrying traffic for AS13101: 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 IPv6465
AS1299Arelion Sweden ABTransitIPv4 IPv6377
AS6939Hurricane Electric LLCTransitIPv4 IPv6258
AS5405Inter.link GmbHUnclassifiedIPv4 IPv6257
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6103
AS3320Deutsche Telekom AGMobileIPv4 IPv670
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv637
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv637
AS42708Glesys Sweden ABUnclassifiedIPv4 IPv637
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv637

All 32 upstreams →

Transit

Downstream networks

All 12

Networks for which AS13101 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS208988Buchholz Digital GmbHUnclassifiedIPv4 IPv6988
AS33846Dataport AoRUnclassifiedIPv4 IPv6507
AS208203Stadtwerke Barmstedt Xtra GmbHUnclassifiedIPv4 IPv6253
AS29551Aixit GmbHHostingIPv4252
AS6735TNG Stadtnetz GmbHResidentialIPv4240
AS215344connect2 GmbHUnclassifiedIPv4 IPv6215
AS8495INTERNET AG Global NetworkHostingIPv4 IPv6119
AS198719zeroBS GmbHUnclassifiedIPv4 IPv693
AS49756Der Schleswig Holsteinische LandtagUnclassifiedIPv460
AS8687PPP Internetdienstleistungen GmbHUnclassifiedIPv436

All 12 downstreams →

Adjacency

Adjacent networks

All 53

Every AS seen directly next to AS13101 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv61,018
AS208988Buchholz Digital GmbHUnclassifiedIPv4 IPv6988
AS1299Arelion Sweden ABTransitIPv4 IPv6892
AS6735TNG Stadtnetz GmbHResidentialIPv4655
AS6939Hurricane Electric LLCTransitIPv4 IPv6622
AS33846Dataport AoRUnclassifiedIPv4 IPv6507
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6369
AS5405Inter.link GmbHUnclassifiedIPv4 IPv6338
AS29551Aixit GmbHHostingIPv4270
AS208203Stadtwerke Barmstedt Xtra GmbHUnclassifiedIPv4 IPv6253

All 53 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.40M 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.