Network topology

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

AS19309

Currently announcedSnapshot awaiting refresh

Williamson Medical Center · WILLIAMSON-MEDICAL-CENTER-AS

Last observed10/1/2026, 01:23:26Open ASN profile →

AS19309 relationship topology

Showing 2 / 2

AS19309Williamson Medical Cent…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS7018ATT-INTERNET4 - AT&T Enterprises, LLC

Relationship: Upstream
Observed weight: 220
ASN registration country: United States
Latest RIS data: 10/13/2026, 00:00:00

Open AS7018 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
AS7018Observed weight 220	ATT-INTERNET4 - AT&T Enterprises, LLC	Upstream	United States	8/19/2019, 00:00:00	10/13/2026, 00:00:00	283	0
AS22909Observed weight 39	COMCAST-22909 - Comcast Cable Communications, LLC	Upstream	United States	8/19/2019, 00:00:00	10/13/2026, 00:00:00	50	0

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