asn.dev

Autonomous system

AS51608 FLSMIDTH-AS

Unclassified RIPE

IPv4 addresses 256 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly DK
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

FLSmidth

Denmark · AI-generated

business corporate mining cement

FLSmidth-AS is operated by FLSmidth A/S.

What it's used for

  • The address space carries corporate infrastructure, identified by the netname FLSmidth-NET and registrant FLSmidth A/S.
  • The AS announces a single IPv4 prefix, 91.220.7.0/24, comprising 256 addresses, with no IPv6 prefixes in inventory.
  • With only one observed neighbour, this allocation functions as a small, isolated corporate estate for internal network segmentation rather than transit or broad access.
  • Traffic from this AS consists of office workers and engineering endpoints for a multinational technology provider serving the mining and cement industries.

Notable

  • The registrant FLSmidth A/S matches the AS holder, confirming direct ownership of the address space.
  • FLSmidth rebranded its cement business as Fuller Technologies in November 2025, though the AS remains under the parent company's name.
  • The inventory is minimal, consisting of a single /24 block in Denmark, which fits the profile of a specific site or headquarters allocation.

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

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS48152Digital Frankfurt GmbH59

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
DKDenmark1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS51608
Registry name
FLSmidth-AS
Registrant
MNT-FLS
Abuse contact
abuse@nianet.dk
Registered
2010-10-07
Last changed
2022-06-29
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS51608
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
2 naming AS51608

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: 442 networks and 1,771 prefixes, as published 2026-10-15. 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