Network topology

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

AS9591

Currently announcedSnapshot awaiting refresh

NIFS - National Institute for Fusion Science · NIFS

Last observed9/30/2026, 00:18:05Open ASN profile →

AS9591 relationship topology

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AS9591National Institute for …

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS2907SINET-AS - Research Organization of Information and Systems, National Institute of Informatics

Relationship: Upstream
Observed weight: 282
ASN registration country: Japan
Latest RIS data: 9/29/2026, 00:00:00

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All adjacent autonomous systems

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2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS2907Observed weight 282	SINET-AS - Research Organization of Information and Systems, National Institute of Informatics	Upstream	Japan	8/19/2019, 00:00:00	9/29/2026, 00:00:00	597	0
AS7690Observed weight 45	MIRAI	Upstream	Japan	8/19/2019, 00:00:00	9/29/2026, 00:00:00	70	0

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