Network topology

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

AS2641

Currently announcedSnapshot awaiting refresh

TSRI-AS - The Scripps Research Institute · TSRI-AS

Last observed9/29/2026, 09:22:34Open ASN profile →

AS2641 relationship topology

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AS2641The Scripps Research In…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS46887CROWNCASTLE-AS46887 - Crown Castle Fiber LLC

Relationship: Upstream
Observed weight: 154
ASN registration country: United States
Latest RIS data: 10/21/2026, 00:00:00

Open AS46887 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
AS46887Observed weight 154	CROWNCASTLE-AS46887 - Crown Castle Fiber LLC	Upstream	United States	8/19/2019, 00:00:00	10/21/2026, 00:00:00	901	0
AS195Observed weight 20	SDSC-AS - San Diego Supercomputer Center	Upstream	United States	8/19/2019, 00:00:00	10/21/2026, 00:00:00	131	0

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