Network topology

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

AS20381

Currently announcedSnapshot awaiting refresh

CABLELABS-LV - Cable Television Laboratories, Inc. · CABLELABS-LV

Last observed10/1/2026, 05:05:25Open ASN profile →

AS20381 relationship topology

Showing 2 / 2

AS20381Cable Television Labora…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS3356LEVEL3 - Level 3 Parent, LLC

Relationship: Upstream
Observed weight: 355
ASN registration country: United States
Latest RIS data: 9/30/2026, 00:00:00

Open AS3356 profile →

All adjacent autonomous systems

The table preserves every relationship in the selected filter; graph limits and pagination never remove data.

2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS3356Observed weight 355	LEVEL3 - Level 3 Parent, LLC	Upstream	United States	8/21/2019, 00:00:00	9/30/2026, 00:00:00	665	319
AS33652Observed weight 256	CMCS - Comcast Cable Communications, LLC	Upstream	United States	8/21/2019, 00:00:00	9/30/2026, 00:00:00	331	17

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