asn.dev

Autonomous system

AS61109 STWIMST

Unclassified APNIC

IPv4 addresses 6.14K 5 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly AT
Exchanges 1 recorded by PCH
Upstreams 5 0 downstream
Flagged prefixes 0 none

Summary

Stadtwerke Imst

Austria · AI-generated

municipal broadband austria utility

The AS handle STWIMST is operated by Stadtwerke Imst, the municipal utility company for the town of Imst in Tyrol, Austria.

What it's used for

  • The address space carries municipal broadband access, evidenced by reverse DNS entries pointing to cni.at (e.g., 46-243-106-0.cni.at, 185-7-17-0.cni.at).
  • The network announces 6,144 IPv4 addresses across 5 prefixes and 1 IPv6 prefix, with 6 observed neighbours, indicating a local access provider rather than a transit hub.
  • Traffic consists of residential and business internet access for the municipality of Imst, managed by the local utility provider.

Notable

  • All registrants in the RDAP data agree with the announcer, consistently listing "Stadtgemeinde/Stadtwerke Imst" for prefixes including 46.243.104.0/21 and 185.7.16.0/22.
  • The inventory is composed of five distinct IPv4 blocks, including one /21 and four /22s, reflecting a modest, locally focused address 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

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Tirol-IXInnsbruck, Austria185.1.31.14

Transit providers

5 upstream, 0 downstream and 7 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS25447JM-DATA GmbH132
AS34347HALLAG Kommunal GmbH118
AS31543myNet GmbH62
AS8412T-Mobile Austria GmbH37
AS48362Stadtwerke Feldkirch4

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, 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 5 prefixes · 6.14K addresses IPv6 1 prefixes

CountryNamePrefixes
ATAustria6

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS61109
Registry name
STWIMST
Registrant
CNI-MNT
Abuse contact
noc@cni.at
Registered
2013-02-13
Last changed
2021-04-14
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
83% valid · 5 valid, 1 with no ROA
ROAs
5 authorising AS61109
ASPA
no ASPA record
IRR
100% registered · 6 of 6 announcements
Route objects
6 naming AS61109

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 1,783 prefixes, as published 2026-10-17. 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