Network topology

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

AS210831

Currently announcedSnapshot awaiting refresh

Tramwaje Warszawskie sp. z o.o. · TramwajeWarszawskie

Last observed10/12/2026, 06:58:38Open ASN profile →

AS210831 relationship topology

Showing 3 / 3

AS210831Tramwaje Warszawskie sp…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS12912TMPL T-Mobile Polska S.A.

Relationship: Upstream
Observed weight: 154
ASN registration country: Poland
Latest RIS data: 11/2/2026, 00:00:00

Open AS12912 profile →

All adjacent autonomous systems

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3 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS12912Observed weight 154	TMPL T-Mobile Polska S.A.	Upstream	Poland	8/28/2019, 00:00:00	11/2/2026, 00:00:00	213
AS43372Observed weight 110	TELNAP TELECOM Sp. z o.o.	Upstream	Poland	8/28/2019, 00:00:00	11/2/2026, 00:00:00	143
AS50606Observed weight 26	VIRTUAOPERATOR-AS Horyzont Technologie Internetowe sp.z.o.o.	Upstream	Poland	8/28/2019, 00:00:00	11/2/2026, 00:00:00	31

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