Network topology

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

AS210299

Currently announcedSnapshot awaiting refresh

ART-BUILD-UP · ART-BUILD-UP-AS

Last observed10/12/2026, 03:18:55Open ASN profile →

AS210299 relationship topology

Showing 1 / 1

AS210299ART-BUILD-UP

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS50020CETIN Bulgaria EAD

Relationship: Upstream
Observed weight: 272
ASN registration country: Bulgaria
Latest RIS data: 10/11/2026, 00:00:00

Open AS50020 profile →

All adjacent autonomous systems

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

1 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS50020Observed weight 272	CETIN Bulgaria EAD	Upstream	Bulgaria	8/28/2019, 00:00:00	10/11/2026, 00:00:00	345	0

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