Network topology

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

AS23233

Currently announcedSnapshot awaiting refresh

Fenwick & West, LLP. · FENWICK

Last observed10/1/2026, 11:54:28Open ASN profile →

AS23233 relationship topology

Showing 3 / 3

AS23233Fenwick & West, LLP.

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS3356LEVEL3 - Level 3 Parent, LLC

Relationship: Upstream
Observed weight: 270
ASN registration country: United States
Latest RIS data: 10/1/2026, 00:00:00

Open AS3356 profile →

All adjacent autonomous systems

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3 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS3356Observed weight 270	LEVEL3 - Level 3 Parent, LLC	Upstream	United States	8/21/2019, 00:00:00	10/1/2026, 00:00:00	629
AS7018Observed weight 259	ATT-INTERNET4 - AT&T Enterprises, LLC	Upstream	United States	8/21/2019, 00:00:00	10/1/2026, 00:00:00	330
AS19893Observed weight 15	NTT-GLOBAL-DATA-CENTERS-AMERICA-INC - NTT Global Data Centers Americas, INC.	Upstream	United States	8/21/2019, 00:00:00	10/1/2026, 00:00:00	31

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