Network topology

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

AS5719

Currently announcedSnapshot awaiting refresh

SUNYSB - State University of New York at Stony Brook · SUNYSB

Last observed10/27/2026, 01:52:44Open ASN profile →

AS5719 relationship topology

Showing 4 / 4

AS5719State University of New…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS174COGENT-174 - Cogent Communications, LLC

Relationship: Upstream
Observed weight: 290
ASN registration country: United States
Latest RIS data: 9/29/2026, 00:00:00

Open AS174 profile →

All adjacent autonomous systems

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4 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS174Observed weight 290	COGENT-174 - Cogent Communications, LLC	Upstream	United States	8/19/2019, 00:00:00	9/29/2026, 00:00:00	975	617
AS54004Observed weight 92	LIGHTPATH - Cablevision Lightpath LLC	Upstream	United States	8/19/2019, 00:00:00	9/29/2026, 00:00:00	670	0
AS3754Observed weight 11	NYSERNET3-AS - NYSERNet	Upstream	United States	8/19/2019, 00:00:00	9/29/2026, 00:00:00	79	5
AS3630Observed weight 2	NYSERNET-BLK - NYSERNet	Upstream	United States	8/19/2019, 00:00:00	9/29/2026, 00:00:00	27	3

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