Observed topology

AS42303 FIBERDIREKT

Unclassified ARIN

Upstreams 5 carry this network

Downstreams 5 this network carries

Adjacent (IPv4) 11

Adjacent (IPv6) 1

Upstream graph Who carries AS42303, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS42303 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS42303: 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.

AS	Network	Type	Families	Paths seen
AS1299	Arelion Sweden AB	Transit	IPv4 IPv6	1,430
AS174	Cogent Communications, LLC	Transit	IPv4	495
AS6939	Hurricane Electric LLC	Transit	IPv4	415
AS24482	SG.GS	Hosting	IPv4	41
AS31500	Global Network Management Inc	Unclassified	IPv4	28

Transit

Downstream networks

inferred

Networks for which AS42303 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS57238	Sheimo Scorpion Data AB	Unclassified	IPv4	57
AS199780	Binero AB	Unclassified	IPv4	57
AS51701	Adminor Aktiebolag	Unclassified	IPv4	50
AS29468	Infracom Managed Services AB	Residential	IPv4	6
AS49303	Niscayah Group AB	Unclassified	IPv4	5

Adjacency

Adjacent networks

All 11

Every AS seen directly next to AS42303 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS1299	Arelion Sweden AB	Transit	IPv4 IPv6	1,505
AS174	Cogent Communications, LLC	Transit	IPv4	584
AS6939	Hurricane Electric LLC	Transit	IPv4	436
AS57238	Sheimo Scorpion Data AB	Unclassified	IPv4	57
AS199780	Binero AB	Unclassified	IPv4	57
AS51701	Adminor Aktiebolag	Unclassified	IPv4	50
AS24482	SG.GS	Hosting	IPv4	44
AS31500	Global Network Management Inc	Unclassified	IPv4	28
AS39889	Fredrik Holmqvist	Hosting	IPv4	13
AS29468	Infracom Managed Services AB	Residential	IPv4	6

All 11 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-25 12:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.17M 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.