asn.dev

Autonomous system

AS203525 AS01-ASMTERNI

Unclassified RIPE

IPv4 addresses 1.02K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly IT
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

ASM Terni SpA

Italy · AI-generated

business municipal italy

AS01-ASMTERNI is operated by ASM Terni SpA.

What it's used for

  • The space carries internal corporate traffic, evidenced by the netname IT-ASMTERNISPA-20151218 and registrant ASM Terni SpA.
  • The AS announces 1024 IPv4 addresses across 1 prefix with 2 observed neighbours, indicating a small, self-contained business network rather than a transit or large-scale access provider.
  • Traffic consists of office workers and municipal service endpoints for the public utility company.

Notable

  • Registrants agree with the announcer, with ASM Terni SpA listed in both the registry holder and RDAP data.
  • The address inventory consists of a single /22 block (185.131.248.0/22), representing a compact, unified corporate estate.

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

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS199348Fibraweb S.p.A31
AS3269Telecom Italia S.p.A.28

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 1.02K addresses IPv6 0 prefixes

CountryNamePrefixes
ITItaly1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS203525
Registry name
as01-asmterni
Registrant
it-asmternispa-1-mnt
Abuse contact
info@asmterni.it
Registered
2015-12-18
Last changed
2020-08-03
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
2 authorising AS203525
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS203525

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 443 networks and 1,779 prefixes, as published 2026-10-24. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check