Network topology

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

AS201601

Currently announcedSnapshot awaiting refresh

Astrec-Data Astrec Data OU · Astrec-Data

Last observed10/10/2026, 02:38:02Open ASN profile →

AS201601 relationship topology

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AS201601Astrec-Data Astrec Data…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS1257SWIPNET - Tele2 Sverige AB

Relationship: Upstream
Observed weight: 630
ASN registration country: Sweden
Latest RIS data: 10/31/2026, 00:00:00

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All adjacent autonomous systems

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3 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS1257Observed weight 630	SWIPNET - Tele2 Sverige AB	Upstream	Sweden	8/28/2019, 00:00:00	10/31/2026, 00:00:00	3,056	330
AS174Observed weight 270	COGENT-174 - Cogent Communications, LLC	Upstream	United States	8/28/2019, 00:00:00	10/31/2026, 00:00:00	1,237	0
AS210205Observed weight 253	WIRKOLA WIRKOLA PTE. LTD	Downstream	Registration country pending sync	8/28/2019, 00:00:00	10/31/2026, 00:00:00	331	0

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