Network topology

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

AS1898

Currently announcedSnapshot awaiting refresh

Torsten Blum · VMUNIX

Last observed9/29/2026, 08:34:10Open ASN profile →

AS1898 relationship topology

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AS1898Torsten Blum

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS12731IPHH IPHH Internet Port Hamburg GmbH

Relationship: Upstream
Observed weight: 276
ASN registration country: Germany
Latest RIS data: 10/28/2026, 00:00:00

Open AS12731 profile →

All adjacent autonomous systems

The table preserves every relationship in the selected filter; graph limits and pagination never remove data.

1 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS12731Observed weight 276	IPHH IPHH Internet Port Hamburg GmbH	Upstream	Germany	8/19/2019, 00:00:00	10/28/2026, 00:00:00	357	0

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