asn.dev

Observed topology

AS21263 TELEDATA-AS TeleData GmbH

Residential RIPE Cable/DSL/ISP

Upstreams 32 carry this network
Downstreams 12 this network carries
Adjacent (IPv4) 42
Adjacent (IPv6) 25
Upstream graph Who carries AS21263, and who carries them, drawn as a map up to the transit-free core. 13 exchanges Where AS21263 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 32

Networks observed carrying traffic for AS21263: 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 IPv6514
AS6939Hurricane Electric LLCTransitIPv4 IPv6367
AS1299Arelion Sweden ABTransitIPv4 IPv6358
AS3257GTT Communications Inc.TransitIPv4156
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6124
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv646
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv646
AS24482SG.GSHostingIPv4 IPv646
AS42708Glesys Sweden ABUnclassifiedIPv4 IPv646
AS48185team.blue NVUnclassifiedIPv4 IPv646

All 32 upstreams →

Transit

Downstream networks

All 12

Networks for which AS21263 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS34125Bechtle Managed Service GmbHUnclassifiedIPv4139
AS216282TWS Netz GmbHUnclassifiedIPv4118
AS56984ifm electronic GmbHUnclassifiedIPv4102
AS33814Rolls-Royce Power Systems AGUnclassifiedIPv4 IPv695
AS202526HENSOLDT Optronics GmbHUnclassifiedIPv4 IPv695
AS203293Norbert Herter trading as Regionetz.netUnclassifiedIPv4 IPv695
AS212038ACTICO GmbHUnclassifiedIPv4 IPv695
AS41504arcos informationssysteme GmbHUnclassifiedIPv4 IPv679
AS30791za-internet GmbHUnclassifiedIPv4 IPv676
AS205844Stadtwerke Schorndorf GmbHUnclassifiedIPv459

All 12 downstreams →

Adjacency

Adjacent networks

All 45

Every AS seen directly next to AS21263 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv6707
AS6939Hurricane Electric LLCTransitIPv4 IPv6563
AS1299Arelion Sweden ABTransitIPv4 IPv6472
AS3257GTT Communications Inc.TransitIPv4202
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6175
AS34125Bechtle Managed Service GmbHUnclassifiedIPv4139
AS216282TWS Netz GmbHUnclassifiedIPv4118
AS56984ifm electronic GmbHUnclassifiedIPv4102
AS33814Rolls-Royce Power Systems AGUnclassifiedIPv4 IPv695
AS202526HENSOLDT Optronics GmbHUnclassifiedIPv4 IPv695

All 45 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.00M 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.