Network topology

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

AS199810

Currently announcedSnapshot awaiting refresh

Miasto Bielsko-Biala · UMBB-INET

Last observed10/9/2026, 15:59:09Open ASN profile →

AS199810 relationship topology

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AS199810Miasto Bielsko-Biala

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS43153SferaNET Sp. z o.o.

Relationship: Upstream
Observed weight: 296
ASN registration country: Poland
Latest RIS data: 10/9/2026, 08:00:00

Open AS43153 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
AS43153Observed weight 296	SferaNET Sp. z o.o.	Upstream	Poland	8/28/2019, 00:00:00	10/9/2026, 08:00:00	358	0
AS201966Observed weight 48	OptiKabel Telecom Sp. z o.o.	Upstream	Poland	8/28/2019, 00:00:00	10/9/2026, 08:00:00	66	0

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