Network topology

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

AS39403

Currently announcedSnapshot awaiting refresh

CMC Poland Sp. z o.o. · CMCZAWIERCIE-AS

Last observed10/3/2026, 06:20:00Open ASN profile →

AS39403 relationship topology

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AS39403CMC Poland Sp. z o.o.

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS8374PLUSNET Polkomtel Sp. z o.o.

Relationship: Upstream
Observed weight: 276
ASN registration country: Poland
Latest RIS data: 10/2/2026, 00:00:00

Open AS8374 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
AS8374Observed weight 276	PLUSNET Polkomtel Sp. z o.o.	Upstream	Poland	8/23/2019, 00:00:00	10/2/2026, 00:00:00	355	0

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