asn.dev

Autonomous system

AS213472 KOEHR-AS

Unclassified RIPE

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

Summary

Dr. Josef Koehr

Germany · AI-generated

research ipv6 germany

The AS handle KOEHR-AS is held by Dr. Josef Koehr.

What it's used for

  • The space carries a single IPv6 prefix, 2001:67c:b78::/48, with no IPv4 addresses announced.
  • The inventory consists of 1 IPv6 prefix against 5 observed neighbours, a ratio consistent with a small-scale research or educational network rather than a transit provider.
  • Traffic from this AS represents web and API endpoints associated with an educational or research entity, as indicated by the operator's classification.

Notable

  • The registry holder matches the AS name, identifying Dr. Josef Koehr as the sole registrant.
  • The address inventory is minimal, comprising only one IPv6 block, which fits the profile of a private academic or personal research network.

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

3 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS212895Johannes Ernst29
AS44103The Mastermind Holding B.V.9
AS357084b42 UG1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 0 prefixes · 0 addresses IPv6 1 prefixes

CountryNamePrefixes
DEGermany1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS213472
Registry name
KOEHR-AS
Registrant
KOEHR-MNT
Abuse contact
abuse@koehr.eu
Registered
2025-02-04
Last changed
2026-09-01
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS213472
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS213472

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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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