Network topology

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

AS2640

Currently announcedSnapshot awaiting refresh

AMESLAB-AS - Ames Laboratory · AMESLAB-AS

Last observed9/29/2026, 09:22:31Open ASN profile →

AS2640 relationship topology

Showing 2 / 2

AS2640Ames Laboratory

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS293ESNET - ESnet

Relationship: Upstream
Observed weight: 293
ASN registration country: United States
Latest RIS data: 10/28/2026, 00:00:00

Open AS293 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
AS293Observed weight 293	ESNET - ESnet	Upstream	United States	8/19/2019, 00:00:00	10/28/2026, 00:00:00	306	331
AS2698Observed weight 75	IASTATE-AS - Iowa State University of Science and Technology	Upstream	United States	8/19/2019, 00:00:00	10/28/2026, 00:00:00	76	32

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