Network topology

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

AS397126

Currently announcedSnapshot awaiting refresh

Southwest Research Institute · SWRI-BLDR

Last observed11/10/2026, 18:50:03Open ASN profile →

AS397126 relationship topology

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AS397126Southwest Research Inst…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS6461ZAYO-6461 - Zayo Bandwidth

Relationship: Upstream
Observed weight: 298
ASN registration country: United States
Latest RIS data: 11/10/2026, 00:00:00

Open AS6461 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
AS6461Observed weight 298	ZAYO-6461 - Zayo Bandwidth	Upstream	United States	10/2/2019, 00:00:00	11/10/2026, 00:00:00	404	0
AS33652Observed weight 210	CMCS - Comcast Cable Communications, LLC	Upstream	United States	10/2/2019, 00:00:00	11/10/2026, 00:00:00	256	0

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