Network topology

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

AS57987

Currently announcedSnapshot awaiting refresh

EMS-AS EMS-CHEMIE AG · EMS-AS

Last observed10/5/2026, 20:50:46Open ASN profile →

AS57987 relationship topology

Showing 3 / 3

AS57987EMS-AS EMS-CHEMIE AG

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS6730SUNRISE Sunrise GmbH

Relationship: Upstream
Observed weight: 264
ASN registration country: Switzerland
Latest RIS data: 10/5/2026, 00:00:00

Open AS6730 profile →

All adjacent autonomous systems

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3 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS6730Observed weight 264	SUNRISE Sunrise GmbH	Upstream	Switzerland	8/25/2019, 00:00:00	10/5/2026, 00:00:00	664
AS3257Observed weight 260	GTT-BACKBONE GTT Communications Inc.	Upstream	Germany	8/25/2019, 00:00:00	10/5/2026, 00:00:00	329
AS286Observed weight 1	KPN GTT Communications Inc.	Upstream	Germany	8/25/2019, 00:00:00	10/5/2026, 00:00:00	1

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