Observed topology

AS47273 KSI-KR-AS

Unclassified RIPE

Upstreams 6 carry this network

Downstreams 4 this network carries

Adjacent (IPv4) 10

Adjacent (IPv6) 4

Upstream graph Who carries AS47273, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS47273 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS47273: 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
AS8308	PANSTWOWY INSTYTUT BADAWCZY	Unclassified	IPv4	235
AS29535	Orange Polska Spolka Akcyjna	Unclassified	IPv6	64
AS201054	Stowarzyszenie e-Poludnie	Unclassified	IPv4 IPv6	51
AS24482	SG.GS	Hosting	IPv4 IPv6	7
AS33891	Core-Backbone GmbH	Hosting	IPv4 IPv6	7
AS174	Cogent Communications, LLC	Transit	IPv4	5

Transit

Downstream networks

inferred

Networks for which AS47273 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS57556	HYVA Polska Sp. z o.o.	Unclassified	IPv4	59
AS198674	Przedsiebiorstwo Budowlane "START" G.SZMOLKE, M.SZMOLKE SP.J.	Unclassified	IPv4	58
AS207973	ISNET W. MISTAK M. MISTAK SPOLKA JAWNA	Unclassified	IPv4	44
AS16291	Grudnik Sp. z o.o.	Unclassified	IPv4	8

Adjacency

Adjacent networks

All 11

Every AS seen directly next to AS47273 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS8308	PANSTWOWY INSTYTUT BADAWCZY	Unclassified	IPv4	372
AS201054	Stowarzyszenie e-Poludnie	Unclassified	IPv4 IPv6	76
AS29535	Orange Polska Spolka Akcyjna	Unclassified	IPv6	64
AS57556	HYVA Polska Sp. z o.o.	Unclassified	IPv4	59
AS198674	Przedsiebiorstwo Budowlane "START" G.SZMOLKE, M.SZMOLKE SP.J.	Unclassified	IPv4	58
AS207973	ISNET W. MISTAK M. MISTAK SPOLKA JAWNA	Unclassified	IPv4	44
AS174	Cogent Communications, LLC	Transit	IPv4	11
AS24482	SG.GS	Hosting	IPv4 IPv6	9
AS16291	Grudnik Sp. z o.o.	Unclassified	IPv4	8
AS33891	Core-Backbone GmbH	Hosting	IPv4 IPv6	7

All 11 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.