Network topology

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

AS204064

Currently announcedSnapshot awaiting refresh

CEZNET s.r.o. · CEZNET-AS

Last observed10/10/2026, 17:33:49Open ASN profile →

AS204064 relationship topology

Showing 2 / 2

AS204064CEZNET s.r.o.

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS47232ISPAlliance ISP Alliance a.s.

Relationship: Upstream
Observed weight: 747
ASN registration country: Czechia
Latest RIS data: 10/10/2026, 00:00:00

Open AS47232 profile →

All adjacent autonomous systems

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2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS47232Observed weight 747	ISPAlliance ISP Alliance a.s.	Upstream	Czechia	8/28/2019, 00:00:00	10/10/2026, 00:00:00	2,342	368
AS51424Observed weight 257	Jiri Sperl	Downstream	Czechia	8/28/2019, 00:00:00	10/10/2026, 00:00:00	668	0

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