Network topology

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

AS20943

Currently announcedSnapshot awaiting refresh

NETNOD-LUL Netnod AB · NETNOD-LUL

Last observed10/1/2026, 06:16:16Open ASN profile →

AS20943 relationship topology

Showing 3 / 3

AS20943NETNOD-LUL Netnod AB

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS1257SWIPNET - Tele2 Sverige AB

Relationship: Upstream
Observed weight: 525
ASN registration country: Sweden
Latest RIS data: 11/2/2026, 00:00:00

Open AS1257 profile →

All adjacent autonomous systems

The table preserves every relationship in the selected filter; graph limits and pagination never remove data.

3 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS1257Observed weight 525	SWIPNET - Tele2 Sverige AB	Upstream	Sweden	8/21/2019, 00:00:00	11/2/2026, 00:00:00	422	464
AS57021Observed weight 365	NTP-SE Netnod AB	Downstream	Sweden	8/21/2019, 00:00:00	11/2/2026, 00:00:00	336	332
AS1653Observed weight 204	SUNET - Vetenskapsradet / SUNET	Upstream	Sweden	8/21/2019, 00:00:00	11/2/2026, 00:00:00	251	200

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