asn.dev

Observed topology

AS39823 COMPIC # uplinks

Residential RIPE Cable/DSL/ISP

Upstreams 4 carry this network
Downstreams 1 this network carries
Adjacent (IPv4) 5
Adjacent (IPv6) 3
Upstream graph Who carries AS39823, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS39823 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS39823: 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
AS1299Arelion Sweden ABTransitIPv4 IPv699
AS9002RETN LimitedUnclassifiedIPv4 IPv663
AS6939Hurricane Electric LLCTransitIPv4 IPv644
AS1257Tele2 Sverige ABMobileIPv43

Transit

Downstream networks

inferred

Networks for which AS39823 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS207568Teleone OUUnclassifiedIPv447

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS39823 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv6130
AS9002RETN LimitedUnclassifiedIPv4 IPv678
AS207568Teleone OUUnclassifiedIPv447
AS6939Hurricane Electric LLCTransitIPv4 IPv644
AS1257Tele2 Sverige ABMobileIPv44

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-24 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 72.94M 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.