Network topology

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

AS59121

Currently announcedSnapshot awaiting refresh

AKNWS-NET - Asahi Kasei Networks Corporation · AKNWS-NET

Last observed10/5/2026, 23:53:33Open ASN profile →

AS59121 relationship topology

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AS59121Asahi Kasei Networks Co…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS4725ODN - SoftBank Corp.

Relationship: Upstream
Observed weight: 313
ASN registration country: Japan
Latest RIS data: 10/20/2026, 00:00:00

Open AS4725 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
AS4725Observed weight 313	ODN - SoftBank Corp.	Upstream	Japan	8/25/2019, 00:00:00	10/20/2026, 00:00:00	506	0
AS4713Observed weight 194	OCN - NTT DOCOMO BUSINESS,Inc.	Upstream	Japan	8/25/2019, 00:00:00	10/20/2026, 00:00:00	484	0

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