Network topology

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

AS19209

Currently announcedSnapshot awaiting refresh

Grantham, Mayo, VanOtterloo & Co. LLC · GMO-BOSTON

Last observed10/1/2026, 01:01:18Open ASN profile →

AS19209 relationship topology

Showing 2 / 2

AS19209Grantham, Mayo, VanOtte…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS174COGENT-174 - Cogent Communications, LLC

Relationship: Upstream
Observed weight: 249
ASN registration country: United States
Latest RIS data: 9/30/2026, 00:00:00

Open AS174 profile →

All adjacent autonomous systems

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2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS174Observed weight 249	COGENT-174 - Cogent Communications, LLC	Upstream	United States	8/19/2019, 00:00:00	9/30/2026, 00:00:00	327	0
AS36086Observed weight 249	TELX-LEGACY - Telx	Upstream	United States	8/19/2019, 00:00:00	9/30/2026, 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