Network topology

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

AS33837

Currently announcedSnapshot awaiting refresh

Fredrik Holmqvist · PRQ-AS

Last observed10/2/2026, 16:28:42Open ASN profile →

AS33837 relationship topology

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AS33837Fredrik Holmqvist

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS39889DCS-Networks-AS Fredrik Holmqvist

Relationship: Upstream
Observed weight: 367
ASN registration country: Sweden
Latest RIS data: 10/2/2026, 00:00:00

Open AS39889 profile →

All adjacent autonomous systems

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2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS39889Observed weight 367	DCS-Networks-AS Fredrik Holmqvist	Upstream	Sweden	8/21/2019, 00:00:00	10/2/2026, 00:00:00	340	339
AS50989Observed weight 1	DCS-Networks-AS SITAB Infrastruktur	Upstream	RIR did not provide a registration country	8/21/2019, 00:00:00	10/2/2026, 00:00:00	1	0

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