Network topology

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

AS57707

Currently announcedSnapshot awaiting refresh

GREENDATA Greendata s.r.o. · GREENDATA

Last observed10/5/2026, 18:59:36Open ASN profile →

AS57707 relationship topology

Showing 3 / 3

AS57707GREENDATA Greendata s.r…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS8251NFX_ZSPO FreeTel, s.r.o.

Relationship: Upstream
Observed weight: 677
ASN registration country: Czechia
Latest RIS data: 10/5/2026, 00:00:00

Open AS8251 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
AS8251Observed weight 677	NFX_ZSPO FreeTel, s.r.o.	Upstream	Czechia	8/25/2019, 00:00:00	10/5/2026, 00:00:00	2,695	774
AS30738Observed weight 402	ORG-NGs2-RIPE	Downstream	Czechia	8/25/2019, 00:00:00	10/5/2026, 00:00:00	674	358
AS62298Observed weight 203	Computer Systems Consulting s.r.o.	Upstream	Czechia	8/25/2019, 00:00:00	10/5/2026, 00:00:00	2	277

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