Network topology

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

AS9991

Currently announcedSnapshot awaiting refresh

SHUDO-U - Hiroshima Shudo University · SHUDO-U

Last observed9/30/2026, 01:28:34Open ASN profile →

AS9991 relationship topology

Showing 2 / 2

AS9991Hiroshima Shudo Univers…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS7670CTNET - Enecom,Inc.

Relationship: Upstream
Observed weight: 386
ASN registration country: Japan
Latest RIS data: 10/29/2026, 00:00:00

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2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS7670Observed weight 386	CTNET - Enecom,Inc.	Upstream	Japan	8/19/2019, 00:00:00	10/29/2026, 00:00:00	283	337
AS2907Observed weight 50	SINET-AS - Research Organization of Information and Systems, National Institute of Informatics	Upstream	Japan	8/19/2019, 00:00:00	10/29/2026, 00:00:00	53	17

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