Network topology

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

AS5491

Currently announcedSnapshot awaiting refresh

Jan Olsson · OLSSON_NET

Last observed9/29/2026, 13:00:29Open ASN profile →

AS5491 relationship topology

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AS5491Jan Olsson

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS1835FSKNET-DK - IDDQD-AS

Relationship: Upstream
Observed weight: 257
ASN registration country: RIR did not provide a registration country
Latest RIS data: 9/29/2026, 00:00:00

Open AS1835 profile →

All adjacent autonomous systems

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1 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS1835Observed weight 257	FSKNET-DK - IDDQD-AS	Upstream	RIR did not provide a registration country	8/19/2019, 00:00:00	9/29/2026, 00:00:00	337	0

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