Network topology

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

AS20138

Currently announcedSnapshot awaiting refresh

CTHS-ASN-20138 - Carson Tahoe Health System · CTHS-ASN-20138

Last observed10/1/2026, 04:38:59Open ASN profile →

AS20138 relationship topology

Showing 2 / 2

AS20138Carson Tahoe Health Sys…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS23222Charter Communications LLC

Relationship: Upstream
Observed weight: 154
ASN registration country: United States
Latest RIS data: 11/1/2026, 00:00:00

Open AS23222 profile →

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2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS23222Observed weight 154	Charter Communications LLC	Upstream	United States	8/21/2019, 00:00:00	11/1/2026, 00:00:00	210	0
AS7018Observed weight 119	ATT-INTERNET4 - AT&T Enterprises, LLC	Upstream	United States	8/21/2019, 00:00:00	11/1/2026, 00:00:00	151	0

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