asn.dev

Autonomous system

AS51073 AARHUS-KOEBMANDSSKOLE

Unclassified RIPE

IPv4 addresses 512 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly DK
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Aarhus Business College

Denmark · AI-generated

education business denmark

The AS handle AARHUS-KOEBMANDSSKOLE is held by Aarhus Business College.

What it's used for

  • The address space carries the internal network of a vocational business school, identified by the netname AABC and registrant Aarhus Business College.
  • The AS announces 512 IPv4 addresses within a single /23 prefix (195.254.168.0/23) and maintains 2 observed neighbours, a ratio consistent with a small, self-contained institutional network rather than a transit or access provider.
  • Traffic from this AS consists of staff, students, and administrative systems for a secondary education institution offering business and management programmes in Aarhus, Denmark.

Notable

  • The RDAP registrant Aarhus Business College and netname AABC align directly with the AS holder and the institution's common abbreviation.
  • The address inventory is compact, consisting of a single contiguous /23 block, which reflects the modest scale of a single-site educational campus.

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
AS31027GlobalConnect A/S31
AS9158Telenor A/S27

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, 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 · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
DKDenmark1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS51073
Registry name
AARHUS-KOEBMANDSSKOLE
Registrant
lir-dk-aabc-1-MNT
Abuse contact
ripe.abuse@efif.dk
Registered
2010-05-26
Last changed
2024-09-23
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS51073
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS51073

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: 448 networks and 1,851 prefixes, as published 2026-10-29. 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