Network topology

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

AS30937

Currently announcedSnapshot awaiting refresh

Walhalla Data Center Services SL · Walhalla__AS30937

Last observed11/1/2026, 17:32:40Open ASN profile →

AS30937 relationship topology

Showing 6 / 6

AS30937Walhalla Data Center Se…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS198479BPLAN Nunsys SA

Relationship: Upstream
Observed weight: 253
ASN registration country: Spain
Latest RIS data: 11/1/2026, 00:00:00

Open AS198479 profile →

All adjacent autonomous systems

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6 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS198479Observed weight 253	BPLAN Nunsys SA	Upstream	Spain	8/21/2019, 00:00:00	11/1/2026, 00:00:00	346	0
AS3356Observed weight 217	LEVEL3 - Level 3 Parent, LLC	Upstream	United States	8/21/2019, 00:00:00	11/1/2026, 00:00:00	1,442	199
AS3257Observed weight 118	GTT-BACKBONE GTT Communications Inc.	Upstream	Germany	8/21/2019, 00:00:00	11/1/2026, 00:00:00	789	103
AS12479Observed weight 58	UNI2-AS Orange Espagne SA	Upstream	Spain	8/21/2019, 00:00:00	11/1/2026, 00:00:00	486	86
AS35793Observed weight 42	acronis Acronis International GmbH	Downstream	Switzerland	8/21/2019, 00:00:00	11/1/2026, 00:00:00	61	58
AS286Observed weight 2	KPN GTT Communications Inc.	Upstream	Germany	8/21/2019, 00:00:00	11/1/2026, 00:00:00	9	2

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