Network topology

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

AS29987

Currently announcedSnapshot awaiting refresh

SINFONY6 - Sinfony6, LLC · SINFONY6

Last observed10/2/2026, 05:52:14Open ASN profile →

AS29987 relationship topology

Showing 4 / 4

AS29987Sinfony6, LLC

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS3257GTT-BACKBONE GTT Communications Inc.

Relationship: Upstream
Observed weight: 427
ASN registration country: Germany
Latest RIS data: 10/1/2026, 00:00:00

Open AS3257 profile →

All adjacent autonomous systems

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4 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS3257Observed weight 427	GTT-BACKBONE GTT Communications Inc.	Upstream	Germany	8/21/2019, 00:00:00	10/1/2026, 00:00:00	15,430
AS14571Observed weight 258	AS14571 - Oi S.A. - Em Recuperacao Judicial	Downstream	Registration country pending sync	8/21/2019, 00:00:00	10/1/2026, 00:00:00	10,467
AS32097Observed weight 93	WII - WholeSale Internet, Inc.	Upstream	United States	8/21/2019, 00:00:00	10/1/2026, 00:00:00	2,239
AS286Observed weight 2	KPN GTT Communications Inc.	Upstream	Germany	8/21/2019, 00:00:00	10/1/2026, 00:00:00	54

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