Network topology

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

AS10209

Currently announcedSnapshot awaiting refresh

Synopsys · Synopsys-AS-JP-AP

Last observed9/30/2026, 02:14:08Open ASN profile →

AS10209 relationship topology

Showing 2 / 2

AS10209Synopsys

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS3356LEVEL3 - Level 3 Parent, LLC

Relationship: Upstream
Observed weight: 258
ASN registration country: United States
Latest RIS data: 9/29/2026, 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 258	LEVEL3 - Level 3 Parent, LLC	Upstream	United States	8/19/2019, 00:00:00	9/29/2026, 00:00:00	684	0
AS4637Observed weight 256	ASN-TELSTRA-GLOBAL - Telstra Global	Upstream	Hong Kong SAR China	8/19/2019, 00:00:00	9/29/2026, 00:00:00	332	0

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