Network topology

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

AS1152

Currently announcedSnapshot awaiting refresh

SIVON-AS SURF B.V. · SIVON-AS

Last observed11/6/2026, 13:56:02Open ASN profile →

AS1152 relationship topology

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AS1152SIVON-AS SURF B.V.

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS1103SURFNET-NL SURF B.V.

Relationship: Upstream
Observed weight: 373
ASN registration country: Netherlands
Latest RIS data: 11/6/2026, 00:00:00

Open AS1103 profile →

All adjacent autonomous systems

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1 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS1103Observed weight 373	SURFNET-NL SURF B.V.	Upstream	Netherlands	8/19/2019, 00:00:00	11/6/2026, 00:00:00	696	345

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