Network topology

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

AS61983

Currently announcedSnapshot awaiting refresh

Instytut Meteorologii i Gospodarki Wodnej - Panstwowy Instytut Badawczy · IMGW

Last observed10/6/2026, 08:28:51Open ASN profile →

AS61983 relationship topology

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AS61983Instytut Meteorologii i…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS12912TMPL T-Mobile Polska S.A.

Relationship: Upstream
Observed weight: 264
ASN registration country: Poland
Latest RIS data: 11/5/2026, 00:00:00

Open AS12912 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
AS12912Observed weight 264	TMPL T-Mobile Polska S.A.	Upstream	Poland	9/19/2019, 00:00:00	11/5/2026, 00:00:00	338	0
AS12741Observed weight 273	AS-NETIA Netia SA	Upstream	Poland	8/25/2019, 00:00:00	10/6/2026, 00:00:00	347	0

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