Autonomous system
AS28919 STWKUFSTEIN-AS Fischergries 2
Residential RIPE Cable/DSL/ISP
Summary
Stadtwerke Kufstein
municipal isp residential austria
STWKUFSTEIN-AS is operated by Stadtwerke Kufstein GmbH, a municipal utility company in Kufstein, Austria.
What it's used for
- The address space carries residential and business internet access, evidenced by reverse DNS entries like
213-182-247-254.static.kufnet.atand netnames such asAT-STWKUFSTEIN-20030313. - The AS announces 24064 IPv4 addresses across 16 prefixes and 20 IPv6 prefixes, while maintaining 111 observed neighbours; this ratio of moderate address space against a high neighbour count indicates a regional access provider rather than a transit carrier.
Notable
- All RDAP registrants for the largest prefixes are listed as Stadtwerke Kufstein GmbH, fully aligning with the AS holder.
- The address inventory is finely subdivided into multiple /22 and /23 blocks, consistent with an internal corporate estate serving a specific municipal area rather than a large-scale national ISP.
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
Internet exchanges
Recorded at 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.195.136 |
| DE-CIX Munich | Munich, Germany | 185.1.208.97 |
Transit providers
22 upstream, 1 downstream and 31 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 16 prefixes · 24.06K addresses IPv6 20 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AT | Austria | 36 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS28919- Registry name
- STWKUFSTEIN-AS
- Registrant
- Stadtwerke Kufstein GmbH
- Abuse contact
- lir.admins@kufnet.at
- Registered
- 2003-04-03
- Last changed
- 2023-11-14
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Stadtwerke Kufstein
- Network type
- Cable/DSL/ISP
- Scope
- Regional
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- IRR as-set
AS-SET-STWK- Present at
- 2 exchanges
- Facilities
- 1 facilities
- Website
- https://www.stwk.at
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 96% valid · 24 valid, 1 with no ROA
- ROAs
- 13 authorising AS28919
- ASPA
- no ASPA record
- IRR
- 100% registered · 25 of 25 announcements
- Route objects
- 15 naming AS28919
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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: 448 networks and 1,849 prefixes, as published 2026-10-30. 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