Network topology

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

AS1249

Currently announcedSnapshot awaiting refresh

FIVE-COLLEGES-AS - University of Massachusetts - AMHERST · FIVE-COLLEGES-AS

Last observed9/29/2026, 07:45:44Open ASN profile →

AS1249 relationship topology

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AS1249University of Massachus…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS1968UMASSNET-AS1968 - UMASSNET

Relationship: Upstream
Observed weight: 523
ASN registration country: United States
Latest RIS data: 9/28/2026, 16:00:00

Open AS1968 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
AS1968Observed weight 523	UMASSNET-AS1968 - UMASSNET	Upstream	United States	8/19/2019, 00:00:00	9/28/2026, 16:00:00	1,342	338
AS168Observed weight 257	UMASS-AMHERST - University of Massachusetts - AMHERST	Downstream	United States	8/19/2019, 00:00:00	9/28/2026, 16:00:00	0	338

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