asn.dev

Autonomous system

AS33872 AMS-AS

Unclassified RIPE

IPv4 addresses 1.79K 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly AT
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Alpha Medien Service GmbH

Austria · AI-generated

business austria small

AMS-AS is operated by Alpha Medien Service GmbH.

What it's used for

  • The address space carries the netname ALPHA-MEDIEN-NET across all announced prefixes, indicating a dedicated corporate or service network.
  • The AS announces 1792 IPv4 addresses across 3 prefixes in Austria and maintains a single observed neighbour, a ratio consistent with a small, self-contained business network rather than a transit or large access provider.

Notable

  • All registrants for the announced prefixes are listed as Alpha Medien Service GmbH, matching the AS holder.
  • The address inventory consists of three blocks within the 193.187.0.0/16 range, specifically 193.187.4.0/22, 193.187.10.0/23, and 193.187.9.0/24.

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

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS8412T-Mobile Austria GmbH174

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 3 prefixes · 1.79K addresses IPv6 0 prefixes

CountryNamePrefixes
ATAustria3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS33872
Registry name
AMS-AS
Registrant
AS1764-MNT
Abuse contact
abuse@alpha-medien.at
Registered
2004-08-25
Last changed
2021-01-08
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 3 with no ROA
ROAs
0 authorising AS33872
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
3 naming AS33872

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