Network topology

Relationships come from RIS AS_PATH observations; direction represents path position, not a commercial contract or traffic direction.

AS209366

Currently announcedSnapshot awaiting refresh

SEMRUSH-AS SEMrush CY LTD · SEMRUSH-AS

Last observed10/11/2026, 21:47:28Open ASN profile →

AS209366 relationship topology

Showing 3 / 3

AS209366SEMRUSH-AS SEMrush CY L…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS39572ADVANCEDHOSTERS-AS DataWeb Global Group B.V.

Relationship: Upstream
Observed weight: 254
ASN registration country: Netherlands
Latest RIS data: 10/11/2026, 00:00:00

Open AS39572 profile →

All adjacent autonomous systems

The table preserves every relationship in the selected filter; graph limits and pagination never remove data.

3 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS39572Observed weight 254	ADVANCEDHOSTERS-AS DataWeb Global Group B.V.	Upstream	Netherlands	8/28/2019, 00:00:00	10/11/2026, 00:00:00	329
AS1299Observed weight 150	TWELVE99 Arelion Sweden AB	Upstream	Sweden	8/28/2019, 00:00:00	10/11/2026, 00:00:00	791
AS174Observed weight 105	COGENT-174 - Cogent Communications, LLC	Upstream	United States	8/28/2019, 00:00:00	10/11/2026, 00:00:00	531

CHA.LA ASN relationship snapshotRelationships are normalized by CHA.LA from collected routing observations and registration context.CHA.LA routing observations · registration context