asn.dev

Autonomous system

AS42166 EON-HANSE-WAERME-AS

Unclassified ARIN

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

Summary

HanseWerk Natur GmbH

Germany · AI-generated

business energy district-heating corporate

The AS handle EON-HANSE-WAERME-AS is held by HanseWerk Natur GmbH.

What it's used for

  • The space carries corporate infrastructure for a regional heat and energy supplier, evidenced by the netname eon-hanse-waerme-NET and reverse DNS entries like host064.haw-n.com.
  • The network announces a single IPv4 prefix, 194.0.149.0/24, comprising 256 addresses, with 2 observed neighbours, indicating a small, self-contained corporate estate rather than a transit or access network.
  • Traffic from this AS consists of internal corporate communications, office workers, and operational endpoints for HanseWerk Natur's district heating and decentralised energy services in northern Germany.

Notable

  • The registrant HanseWerk Natur GmbH matches the AS holder, confirming consistent ownership of the address space.
  • HanseWerk Natur GmbH is a 100% subsidiary of Hansewerk AG, operating as a regional heat supplier and energy service provider based in Quickborn, Schleswig-Holstein.
  • The address inventory is minimal, consisting of a single /24 block, which aligns with the company's role as a utility provider rather than a large-scale internet service provider.

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
AS8220COLT Technology Services Group Limited43
AS12693e.discom Telekommunikation GmbH17

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, 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
DEGermany1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS42166
Registry name
Eon-hanse-waerme-AS
Registrant
CLJ-MNT
Abuse contact
abuse@colt.net
Registered
2007-01-03
Last changed
2023-04-12
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS42166
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS42166

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 1,781 prefixes, as published 2026-10-16. 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