Network topology

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

AS26397

Currently announcedSnapshot awaiting refresh

OPTIPUTER - The Regents of the University of California - University of California, San Diego. · OPTIPUTER

Last observed10/1/2026, 20:36:37Open ASN profile →

AS26397 relationship topology

Showing 2 / 2

AS26397The Regents of the Univ…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS7377UCSD - University of California, San Diego

Relationship: Upstream
Observed weight: 246
ASN registration country: United States
Latest RIS data: 10/29/2026, 00:00:00

Open AS7377 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
AS7377Observed weight 246	UCSD - University of California, San Diego	Upstream	United States	8/21/2019, 00:00:00	10/29/2026, 00:00:00	323	0
AS2153Observed weight 12	CENIC-2153 - CENIC	Upstream	United States	8/21/2019, 00:00:00	10/29/2026, 00:00:00	46	0

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