Network topology

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

AS51581

Currently announcedSnapshot awaiting refresh

Profonika-BG Profonika EOOD · Profonika-BG

Last observed10/4/2026, 18:16:59Open ASN profile →

AS51581 relationship topology

Showing 3 / 3

AS51581Profonika-BG Profonika …

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS8717A1BG A1 Bulgaria EAD

Relationship: Upstream
Observed weight: 305
ASN registration country: Bulgaria
Latest RIS data: 10/4/2026, 00:00:00

Open AS8717 profile →

All adjacent autonomous systems

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3 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS8717Observed weight 305	A1BG A1 Bulgaria EAD	Upstream	Bulgaria	8/25/2019, 00:00:00	10/4/2026, 00:00:00	433	323
AS34224Observed weight 123	NETERRA-AS Neterra Ltd.	Upstream	Bulgaria	8/25/2019, 00:00:00	10/4/2026, 00:00:00	407	0
AS174Observed weight 71	COGENT-174 - Cogent Communications, LLC	Upstream	United States	8/25/2019, 00:00:00	10/4/2026, 00:00:00	210	32

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