asn.dev

Autonomous system

AS12437 DTS-SYSTEME-MUENSTER DTS Systeme Munster GmbH

Unclassified RIPE

IPv4 addresses 9.22K 4 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

DTS Systeme Muenster

Germany · AI-generated

hosting managed-hosting

A German IT services house announcing one IPv4 block registered to a company it used to be.

What it's used for

  • Managed hosting and business connectivity. 8,192 addresses in a single /19, one IPv6 /29, and two observed BGP neighbours.

Notable

  • The one IPv4 prefix, 212.101.192.0/19, is netname DE-ICSMEDIA-990520 — a 1999 allocation under a different name — with DTS Systeme Muenster listed as the current registrant.
  • The IPv6 allocation is 2a06:7880::/29, announced whole and not split.
  • Two neighbours against 8,192 addresses.

Interesting

  • A /29 is an enormous amount of IPv6 for a company with one IPv4 /19. It is the size a regional registry hands to an operator expected to assign onward to customers, which says more about what this business does than the address count does: managed hosting means somebody else's servers, each needing their own space.
  • Announcing that /29 as one prefix is the opposite of what most operators do with IPv6, and it is the tidier choice. Every extra route is carried by every router on the internet, and a network with two upstreams has no traffic engineering reason to publish more than one.

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 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS8879DTS Systeme GmbH70
AS3320Deutsche Telekom AG63

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 4 prefixes · 9.22K addresses IPv6 1 prefixes

CountryNamePrefixes
DEGermany5

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS12437
Registry name
DTS-Systeme-Muenster
Registrant
ICSMEDIA-MNT
Abuse contact
abuse@icsmedia.de
Registered
2002-05-06
Last changed
2019-04-17
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 6 valid, 0 with no ROA
ROAs
5 authorising AS12437
ASPA
no ASPA record
IRR
100% registered · 6 of 6 announcements
Route objects
40 naming AS12437

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