asn.dev

Autonomous system

AS12874 FASTWEB

Residential ARIN Cable/DSL/ISP

IPv4 addresses 3.56M 63 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly IT
Flagged prefixes 0 none

Summary

Fastweb

Italy · AI-generated

isp residential eyeball fiber backbone

Fastweb is a major Italian broadband operator, known for its fibre network and

owned by Swisscom.

What it's used for

  • Residential fibre and fixed-wireless home internet for Italian households, plus business and mobile services.

Notable

  • A large "eyeball" network: addresses here are Italian home connections, commonly behind carrier-grade NAT, not servers.
  • A fibre-first challenger to the incumbent TIM that built out much of Italy's fixed-broadband and runs its own national backbone.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Address space

Summary

Full explorer
CountryNamePrefixes
ITItaly64

Registry

Allocation record

via ARIN RDAP
Registry
ARIN
Handle
AS12874
Registry name
FASTWEB
Registrant
FASTWEB-MNT
Abuse contact
abuse@fastweb.it
Registered
2002-09-13
Last changed
2026-08-05
Status
active

Declared

PeeringDB profile

self-reported
Name
Fastweb
Network type
Cable/DSL/ISP
Scope
Europe
Traffic ratio
Mostly Inbound
Peering policy
Selective
IRR as-set
AS-FASTWEB-GLOBAL
Present at
12 exchanges
Facilities
13 facilities
Website
http://www.fastweb.it

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Reputation

Classification and threat

Residential Fixed-line consumer ISP. Addresses here are homes.

No IC3 indicators Nothing from the FBI IC3 feed.

Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check