Network topology

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

AS16989

Currently announcedSnapshot awaiting refresh

The University of Tennessee Health Science Center · UTHSC

Last observed10/27/2026, 11:23:28Open ASN profile →

AS16989 relationship topology

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AS16989The University of Tenne…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS19957STATE-OF-TENNESSEE-NETTN - AT&T Enterprises, LLC

Relationship: Upstream
Observed weight: 365
ASN registration country: United States
Latest RIS data: 10/26/2026, 08:00:00

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3 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS19957Observed weight 365	STATE-OF-TENNESSEE-NETTN - AT&T Enterprises, LLC	Upstream	United States	8/19/2019, 00:00:00	10/26/2026, 08:00:00	1,300
AS3356Observed weight 87	LEVEL3 - Level 3 Parent, LLC	Upstream	United States	8/19/2019, 00:00:00	10/26/2026, 08:00:00	670
AS14048Observed weight 52	The University of Memphis	Upstream	United States	8/19/2019, 00:00:00	10/26/2026, 08:00:00	231

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