Network topology

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

AS201666

Currently announcedSnapshot awaiting refresh

Yoonsu Son trading as YSSOFT · YSSOFT

Last observed10/30/2026, 13:30:58Open ASN profile →

AS201666 relationship topology

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AS201666Yoonsu Son trading as Y…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS53388Tefexia LC

Relationship: Upstream
Observed weight: 273
ASN registration country: United States
Latest RIS data: 10/30/2026, 00:00:00

Open AS53388 profile →

All adjacent autonomous systems

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

1 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS53388Observed weight 273	Tefexia LC	Upstream	United States	8/28/2019, 00:00:00	10/30/2026, 00:00:00	362	0

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