Network topology

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

AS202191

Currently announcedSnapshot awaiting refresh

SONJA SERVICE ORGANISATIE NASCHOLING JOINT VENTURE EN ADMINISTRATIE NV · SONJA

Last observed10/10/2026, 06:11:53Open ASN profile →

AS202191 relationship topology

Showing 6 / 6

AS202191SONJA SERVICE ORGANISAT…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS6461ZAYO-6461 - Zayo Bandwidth

Relationship: Upstream
Observed weight: 241
ASN registration country: United States
Latest RIS data: 10/13/2026, 00:00:00

Open AS6461 profile →

All adjacent autonomous systems

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

6 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS6461Observed weight 241	ZAYO-6461 - Zayo Bandwidth	Upstream	United States	8/28/2019, 00:00:00	10/13/2026, 00:00:00	314
AS50309Observed weight 217	ARCADIZ Arcadiz Telecom NV	Upstream	Belgium	8/28/2019, 00:00:00	10/13/2026, 00:00:00	292
AS3758Observed weight 160	SINGNET - SingNet	Upstream	Singapore	8/28/2019, 00:00:00	10/13/2026, 00:00:00	208
AS703Observed weight 103	UUNET - Verizon Business	Upstream	United States	8/28/2019, 00:00:00	10/13/2026, 00:00:00	128
AS702Observed weight 49	UUNET - Verizon Business	Upstream	United States	8/28/2019, 00:00:00	10/13/2026, 00:00:00	68
AS701Observed weight 17	UUNET - Verizon Business	Upstream	United States	8/28/2019, 00:00:00	10/13/2026, 00:00:00	21

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