asn.dev

Autonomous system

AS49938 CHEMGINEERING-AS

Unclassified RIPE

IPv4 addresses 256 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly CH
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Chemgineering Holding AG

Switzerland · AI-generated

business engineering life-sciences switzerland

CHEMGINEERING-AS is held by Chemgineering Holding AG.

What it's used for

  • The space carries corporate infrastructure for a life sciences engineering firm, evidenced by the netname CHEMGINEERING-NET and registrant Chemgineering Holding AG.
  • The AS announces 256 IPv4 addresses across 1 prefix (193.104.47.0/24) with 2 observed neighbours, indicating a small, self-contained corporate network rather than a transit or access provider.
  • Traffic from this AS consists of office workers and engineering staff accessing internal systems and external services for consulting and project realization in the pharma and biotechnology sectors.

Notable

  • The RDAP registrant Chemgineering Holding AG matches the AS holder, confirming direct ownership of the address space.
  • The address inventory is a single /24 block, typical for a mid-sized corporate entity requiring a dedicated, contiguous range for its internal network.

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
AS42346NorthC Schweiz AG53
AS6730Sunrise GmbH6

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, 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
CHSwitzerland1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS49938
Registry name
CHEMGINEERING-AS
Registrant
MNT-CHEMGINEERING
Abuse contact
abuse@webkitchen.ch
Registered
2009-10-14
Last changed
2022-06-16
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS49938
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS49938

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 1,778 prefixes, as published 2026-10-20. 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