asn.dev

Observed topology

AS9158 TELENOR_DANMARK_AS

Residential RIPE

Upstreams 19 carry this network
Downstreams 6 this network carries
Adjacent (IPv4) 23
Adjacent (IPv6) 13
Upstream graph Who carries AS9158, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS9158 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 19

Networks observed carrying traffic for AS9158: 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
AS174Cogent Communications, LLCTransitIPv4 IPv6674
AS3356Level 3 Parent, LLCTransitIPv4 IPv6474
AS50673Serverius Holding B.V.UnclassifiedIPv4 IPv652
AS33891Core-Backbone GmbHHostingIPv4 IPv628
AS42708Glesys ABUnclassifiedIPv4 IPv628
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv627
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv627
AS24482SG.GSHostingIPv4 IPv627
AS37721Virtual-Technologies-Solutions-SAResidentialIPv4 IPv627
AS48185team.blue NVUnclassifiedIPv4 IPv627

All 19 upstreams →

Transit

Downstream networks

inferred

Networks for which AS9158 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS203644EG Danmark A/SUnclassifiedIPv4232
AS205116KRISTELIG FAGFORENINGUnclassifiedIPv458
AS209118Helsingoer KommuneUnclassifiedIPv458
AS211676IKAST BETONVAREFABRIK A/SUnclassifiedIPv454
AS51073Aarhus Business CollegeUnclassifiedIPv427
AS57720Wrist Ship Supply A/SUnclassifiedIPv47

Adjacency

Adjacent networks

All 25

Every AS seen directly next to AS9158 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv6845
AS3356Level 3 Parent, LLCTransitIPv4 IPv6608
AS203644EG Danmark A/SUnclassifiedIPv4232
AS50673Serverius Holding B.V.UnclassifiedIPv4 IPv668
AS205116KRISTELIG FAGFORENINGUnclassifiedIPv458
AS209118Helsingoer KommuneUnclassifiedIPv458
AS211676IKAST BETONVAREFABRIK A/SUnclassifiedIPv454
AS33891Core-Backbone GmbHHostingIPv4 IPv637
AS24482SG.GSHostingIPv4 IPv636
AS42708Glesys ABUnclassifiedIPv4 IPv636

All 25 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-26 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.