Network topology

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

AS46378

Currently announcedSnapshot awaiting refresh

FSX-350 - FSX HOLDINGS, LLC · FSX-350

Last observed10/4/2026, 02:36:25Open ASN profile →

AS46378 relationship topology

Showing 4 / 4

AS46378FSX HOLDINGS, LLC

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS3356LEVEL3 - Level 3 Parent, LLC

Relationship: Upstream
Observed weight: 297
ASN registration country: United States
Latest RIS data: 10/3/2026, 00:00:00

Open AS3356 profile →

All adjacent autonomous systems

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4 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS3356Observed weight 297	LEVEL3 - Level 3 Parent, LLC	Upstream	United States	8/23/2019, 00:00:00	10/3/2026, 00:00:00	1,792	334
AS4213Observed weight 271	EVOCATIVE-GLOBAL - Krypt Technologies	Upstream	United States	8/23/2019, 00:00:00	10/3/2026, 00:00:00	530	332
AS174Observed weight 230	COGENT-174 - Cogent Communications, LLC	Upstream	United States	8/23/2019, 00:00:00	10/3/2026, 00:00:00	2,763	0
AS6461Observed weight 140	ZAYO-6461 - Zayo Bandwidth	Upstream	United States	8/23/2019, 00:00:00	10/3/2026, 00:00:00	2,240	0

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