asn.dev

Autonomous system

AS215461 VIADONAU-AS

Unclassified RIPE

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

Summary

via donau

Austria · AI-generated

government waterway infrastructure

The AS handle VIADONAU-AS is held by via donau Oesterreichische Wasserstrassen Gesellschaft mbH.

What it's used for

  • The address space carries internal corporate infrastructure, evidenced by the netname VIADONAU-NET and the registrant identity.
  • The inventory consists of 256 IPv4 addresses within a single /24 prefix (194.48.2.0/24) and 0 IPv6 prefixes.
  • With only 2 observed neighbours, the network functions as a small, isolated internal estate rather than a transit or access provider.
  • Traffic from this AS consists of office workers and administrative systems for the Austrian waterway company, which manages the Danube waterway and the Port of Vienna.

Notable

  • The RDAP registrant matches the AS holder exactly, confirming direct ownership of the address space.
  • via donau is a subsidiary of the Austrian Federal Ministry for Climate Action, Environment, Energy, Mobility, Innovation, operating as the national waterway authority.
  • The address inventory is minimal, comprising a single contiguous block with no announced IPv6 space.

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
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH58
AS8437Hutchison Drei Austria GmbH3

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

Shape and geography

IPv4 1 prefixes · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
ATAustria1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS215461
Registry name
VIADONAU-AS
Registrant
AS1764-MNT
Abuse contact
slobodan.vucinic@viadonau.org
Registered
2024-02-19
Last changed
2024-02-19
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS215461
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
2 naming AS215461

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: 447 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

Cross-check