Network topology

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

AS52154

Currently announcedSnapshot awaiting refresh

mjanik.net s.r.o. · ASMJANIK

Last observed10/25/2026, 14:34:22Open ASN profile →

AS52154 relationship topology

Showing 3 / 3

AS52154mjanik.net s.r.o.

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS16019Vodafone Czech Republic a.s.

Relationship: Upstream
Observed weight: 794
ASN registration country: Czechia
Latest RIS data: 10/20/2026, 00:00:00

Open AS16019 profile →

All adjacent autonomous systems

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3 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS16019Observed weight 794	Vodafone Czech Republic a.s.	Upstream	Czechia	8/25/2019, 00:00:00	10/20/2026, 00:00:00	2,632	334
AS214952Observed weight 243	mjanik.net s.r.o.	Downstream	Czechia	8/25/2019, 00:00:00	10/20/2026, 00:00:00	0	334
AS47727Observed weight 25	WARNETCZ-AS Warnet.cz s.r.o.	Upstream	Czechia	8/25/2019, 00:00:00	10/20/2026, 00:00:00	31	0

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