Network topology

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

AS51290

Currently announcedSnapshot awaiting refresh

BARTOSZ WASZAK trading as HOSTEAM S.C. TOMASZ GROSZEWSKI BARTOSZ WASZAK LUKASZ GROSZEWSKI · HOSTEAM-AS

Last observed10/4/2026, 17:11:11Open ASN profile →

AS51290 relationship topology

Showing 3 / 3

AS51290BARTOSZ WASZAK trading …

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS1299TWELVE99 Arelion Sweden AB

Relationship: Upstream
Observed weight: 365
ASN registration country: Sweden
Latest RIS data: 10/4/2026, 00:00:00

Open AS1299 profile →

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3 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS1299Observed weight 365	TWELVE99 Arelion Sweden AB	Upstream	Sweden	8/25/2019, 00:00:00	10/4/2026, 00:00:00	1,748	383
AS12741Observed weight 330	AS-NETIA Netia SA	Upstream	Poland	8/25/2019, 00:00:00	10/4/2026, 00:00:00	1,378	307
AS25154Observed weight 23	Currency One S.A.	Downstream	Poland	8/25/2019, 00:00:00	10/4/2026, 00:00:00	27	0

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