asn.dev

Autonomous system

AS24952 FIRMENICH-AS

Unclassified RIPE

IPv4 addresses 32.77K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly CH
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

dsm-firmenich

Switzerland · AI-generated

business corporate fragrance swiss

FIRMENICH-AS is the autonomous system for dsm-firmenich, a global fragrance and flavor company.

What it's used for

  • The space carries corporate infrastructure, evidenced by the netname FIRMENICH associated with the single announced prefix.
  • The AS announces 32768 IPv4 addresses within one prefix (153.108.0.0/17) and maintains only 1 observed neighbour, indicating a private corporate estate rather than a transit or access network.

Notable

  • The registrant for the prefix is listed as unknown in the RDAP data, while the registry holder is FIRMENICH-AS Firmenich SA.
  • The operator was formerly known as Firmenich SA, a Swiss fragrance and flavor house, which merged with the Dutch company Royal DSM in May 2023 to form dsm-firmenich.
  • The address inventory consists of a single contiguous /17 block, reflecting a consolidated internal network structure.

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
AS3303Swisscom (Schweiz) AG61

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 · 32.77K addresses IPv6 0 prefixes

CountryNamePrefixes
CHSwitzerland1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS24952
Registry name
FIRMENICH-AS
Registrant
FIRMENICH-MNT
Abuse contact
abuse@ip-plus.net
Registered
2002-06-05
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS24952
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS24952

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: 440 networks and 1,773 prefixes, as published 2026-10-13. 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