asn.dev

Autonomous system

AS57736 HOLSTEBRO-KOMMUNE Holstebro Kommune

Unclassified RIPE

IPv4 addresses 1.02K 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly DK
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Holstebro Kommune

Denmark · AI-generated

government municipal denmark

HOLSTEBRO-KOMMUNE is operated by Holstebro Kommune, a municipal government in Denmark.

What it's used for

  • The address space is registered under the netname DK-HOLSTEBRO-20140530 with the registrant listed as Holstebro Kommune RIPE role.
  • The AS announces 1024 IPv4 addresses within a single /22 prefix and one IPv6 prefix, maintaining only 2 observed neighbours.
  • This low neighbour count relative to the address inventory indicates an internal corporate or municipal estate rather than a transit or access provider, supporting internal network segmentation for municipal operations.

Notable

  • The RDAP registrant data aligns perfectly with the AS holder, identifying Holstebro Kommune as the sole entity responsible for the address space.
  • The inventory consists of a single contiguous IPv4 block and one IPv6 prefix, reflecting a compact and self-contained municipal network footprint.

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 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3292TDC Holding A/S210
AS31027GlobalConnect A/S177

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, 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 · 1.02K addresses IPv6 1 prefixes

CountryNamePrefixes
DKDenmark2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS57736
Registry name
HOLSTEBRO-KOMMUNE
Registrant
MNT-HOLSTEBRO
Abuse contact
ripe-admin@holstebro.dk
Registered
2019-05-16
Last changed
2019-06-17
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 7 valid, 0 with no ROA
ROAs
3 authorising AS57736
ASPA
no ASPA record
IRR
100% registered · 7 of 7 announcements
Route objects
8 naming AS57736

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 1,778 prefixes, as published 2026-10-20. 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