Network topology

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

AS13253

Currently announcedSnapshot awaiting refresh

ISP-ASn4 Intesa Sanpaolo S.p.A. · ISP-ASn4

Last observed9/30/2026, 08:55:54Open ASN profile →

AS13253 relationship topology

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AS13253ISP-ASn4 Intesa Sanpaol…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS12874FASTWEB Fastweb SpA

Relationship: Upstream
Observed weight: 363
ASN registration country: Italy
Latest RIS data: 10/31/2026, 00:00:00

Open AS12874 profile →

All adjacent autonomous systems

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2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS12874Observed weight 363	FASTWEB Fastweb SpA	Upstream	Italy	8/19/2019, 00:00:00	10/31/2026, 00:00:00	1,841	339
AS3269Observed weight 39	ASN-IBSNAZ Telecom Italia S.p.A.	Upstream	Italy	8/19/2019, 00:00:00	10/31/2026, 00:00:00	204	0

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