asn.dev

Autonomous system

AS8339 KABSI-AS

Residential RIPE Cable/DSL/ISP

IPv4 addresses 243K 35 prefixes
IPv6 prefixes 3 counted as prefixes, not addresses
Countries 1 mostly AT
Exchanges 3 recorded by PCH
Upstreams 17 11 downstream
Flagged prefixes 0 none

Summary

kabelplus (kabsi)

Austria · AI-generated

isp residential legacy

KABSI-AS is kabelplus GmbH, an Austrian cable operator serving Lower Austria and neighbouring regions. Its internet service is branded kabsi, and the AS carries the company's cable-broadband subscribers.

What it's used for

  • Residential cable broadband. The dominant reverse-DNS pattern across the space is hA.B.C.DDD.dyn.cm.kabsi.at — dyn for dynamic, cm for cable modem. That naming covers large stretches of the announced ranges and is unambiguous subscriber addressing.
  • Business and static customer space under the bnet.at brand appears alongside it, with IP-WITH-DASHES.static.bnet.at and .customer.bnet.at naming, so the AS carries both consumer and SME connections.
  • Operator infrastructure (nameservers, outbound mail relays) resolves under kabelplus.at and kabsi.at directly.
  • Roughly 240k IPv4 addresses across about thirty prefixes, anchored by a large legacy 62.40.128.0/17.

Notable

  • Eyeball network. Addresses in the dynamic cable pools belong to Austrian households and rotate between them. Geolocate regionally in Austria, and expect consumer behaviour.
  • The bnet.at naming is a separate brand inside the same AS, not a separate operator. Static assignments under it are business customers of the same cable network.

Interesting

  • The AS announces 202.170.80.0/21, an APNIC-range block that was transferred to the RIPE region in 2022 and is now used for Austrian cable subscribers. Anything that infers geography from the traditional Asia-Pacific 202/8 allocation will place these households on the wrong continent.

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 3 exchanges in 3 countries, largest first.

ExchangeLocationTheir address
DE-CIX FrankfurtFrankfurt, Germany80.81.192.254
Peering.czPrague, Czech Republic185.0.20.165
Vienna Internet ExchangeVienna, Austria193.203.0.10

Transit providers

17 upstream, 11 downstream and 38 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS33891Core-Backbone GmbH791
AS6939Hurricane Electric LLC299
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH242
AS34549meerfarbig GmbH & Co. KG84
AS24482SG.GS30
AS29504Freenet Liberec, z.s.30
AS48362Stadtwerke Feldkirch30
AS212024Marc Schmitt30

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-17, 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 35 prefixes · 243K addresses IPv6 3 prefixes

CountryNamePrefixes
ATAustria38

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS8339
Registry name
KABSI-AS
Registrant
AS8339-MNT
Abuse contact
abuse@kabsi.at
Registered
2002-06-28
Last changed
2026-03-30
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Kabelplus GmbH
Also known as
Kabelsignal, Kabsi, B.net/Wellcom/BKF
Network type
Cable/DSL/ISP
Scope
Regional
Traffic ratio
Mostly Inbound
Peering policy
Open
IRR as-set
RIPE::AS-KABS
Present at
3 exchanges
Facilities
2 facilities
Website
http://www.kabelplus.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

Full detail
RPKI
80% valid · 24 valid, 6 with no ROA
ROAs
24 authorising AS8339
ASPA
no ASPA record
IRR
100% registered · 30 of 30 announcements
Route objects
36 naming AS8339

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: 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