Network topology

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

AS5724

Currently announcedSnapshot awaiting refresh

UMASSMED - University of Massachusetts Medical School · UMASSMED

Last observed9/29/2026, 13:30:08Open ASN profile →

AS5724 relationship topology

Showing 4 / 4

AS5724University of Massachus…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS398427MARKLEY-NETWORK-SERVICES - Markley Network Services, LLC

Relationship: Upstream
Observed weight: 335
ASN registration country: United States
Latest RIS data: 9/29/2026, 00:00:00

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All adjacent autonomous systems

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4 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS398427Observed weight 335	MARKLEY-NETWORK-SERVICES - Markley Network Services, LLC	Upstream	United States	8/19/2019, 00:00:00	9/29/2026, 00:00:00	1,167
AS11164Observed weight 34	INTERNET2-I2PX - Internet2	Upstream	United States	8/19/2019, 00:00:00	9/29/2026, 00:00:00	135
AS11537Observed weight 10	INTERNET2-RESEARCH-EDU - Internet2	Upstream	United States	8/19/2019, 00:00:00	9/29/2026, 00:00:00	40
AS174Observed weight 8	COGENT-174 - Cogent Communications, LLC	Upstream	United States	8/19/2019, 00:00:00	9/29/2026, 00:00:00	9

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