Network topology

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

AS7257

Currently announcedSnapshot awaiting refresh

OTO GK · MARU-NET

Last observed10/27/2026, 07:43:02Open ASN profile →

AS7257 relationship topology

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AS7257OTO GK

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS9663MARU-AS-JP - OTO GK

Relationship: Upstream
Observed weight: 388
ASN registration country: Japan
Latest RIS data: 9/29/2026, 00:00:00

Open AS9663 profile →

All adjacent autonomous systems

The table preserves every relationship in the selected filter; graph limits and pagination never remove data.

1 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS9663Observed weight 388	MARU-AS-JP - OTO GK	Upstream	Japan	8/19/2019, 00:00:00	9/29/2026, 00:00:00	659	335

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