Network topology

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

AS51377

Currently announcedSnapshot awaiting refresh

CoMaSys ApS · COMASYS

Last observed10/4/2026, 17:33:08Open ASN profile →

AS51377 relationship topology

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AS51377CoMaSys ApS

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS34766Layer23 atom86 BV

Relationship: Upstream
Observed weight: 334
ASN registration country: Netherlands
Latest RIS data: 10/4/2026, 00:00:00

Open AS34766 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
AS34766Observed weight 334	Layer23 atom86 BV	Upstream	Netherlands	8/25/2019, 00:00:00	10/4/2026, 00:00:00	1,648	331

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