Network topology

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

AS47981

Currently announcedSnapshot awaiting refresh

IUMS-AS Iran University of Medical Sciences · IUMS-AS

Last observed10/4/2026, 07:16:12Open ASN profile →

AS47981 relationship topology

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AS47981IUMS-AS Iran University…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS6736IRANET-IPM Institute for Research in Fundamental Sciences

Relationship: Upstream
Observed weight: 257
ASN registration country: Iran
Latest RIS data: 10/3/2026, 16:00:00

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1 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS6736Observed weight 257	IRANET-IPM Institute for Research in Fundamental Sciences	Upstream	Iran	8/23/2019, 00:00:00	10/3/2026, 16:00:00	329	0

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