Network topology

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

AS43976

Currently announcedSnapshot awaiting refresh

POSTEITALIANE-AS Poste Italiane S.p.A. · POSTEITALIANE-AS

Last observed10/29/2026, 14:19:02Open ASN profile →

AS43976 relationship topology

Showing 4 / 4

AS43976POSTEITALIANE-AS Poste …

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS12874FASTWEB Fastweb SpA

Relationship: Upstream
Observed weight: 1,297
ASN registration country: Italy
Latest RIS data: 10/29/2026, 00:00:00

Open AS12874 profile →

All adjacent autonomous systems

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4 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS12874Observed weight 1,297	FASTWEB Fastweb SpA	Upstream	Italy	8/23/2019, 00:00:00	10/29/2026, 00:00:00	5,730
AS15720Observed weight 581	Poste Italiane S.p.A.	Downstream	Italy	8/23/2019, 00:00:00	10/29/2026, 00:00:00	6,453
AS3269Observed weight 337	ASN-IBSNAZ Telecom Italia S.p.A.	Upstream	Italy	8/23/2019, 00:00:00	10/29/2026, 00:00:00	3,781
AS197022Observed weight 261	POSTEL-AS Poste Italiane S.p.A.	Downstream	Italy	8/23/2019, 00:00:00	10/29/2026, 00:00:00	340

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