Network topology

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

AS213813

Currently announcedSnapshot awaiting refresh

MaSON z. s. · MASON-CZ-AS

Last observed10/13/2026, 03:38:25Open ASN profile →

AS213813 relationship topology

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AS213813MaSON z. s.

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS33883TRIOPTIMUM s.r.o.

Relationship: Upstream
Observed weight: 234
ASN registration country: Czechia
Latest RIS data: 10/12/2026, 00:00:00

Open AS33883 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
AS33883Observed weight 234	TRIOPTIMUM s.r.o.	Upstream	Czechia	8/28/2019, 00:00:00	10/12/2026, 00:00:00	0	331

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