asn.dev

Autonomous system

AS204866 MICRODATA-AS

Unclassified RIPE

IPv4 addresses 1.02K 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly DK
Exchanges 0 recorded by PCH
Upstreams 1 1 downstream
Flagged prefixes 0 none

Summary

Microdata Aps

Denmark · AI-generated

business denmark ipv4

MICRODATA-AS is held by Microdata Aps.

What it's used for

  • The address space carries business infrastructure, evidenced by netnames LAYER-194-99-44-0 and ATOM86 and reverse DNS entries pointing to network-by.layer23.nl.
  • The AS announces 1024 IPv4 addresses across 3 prefixes with 3 observed neighbours, indicating a small-scale business or internal corporate estate rather than a large access or transit network.
  • Traffic from this AS consists of web and API endpoints associated with the Layer23 and Atom86 brands, which are part of the Microdata Aps operational portfolio.

Notable

  • Registrants for the largest prefixes include Layer23 NOC, atom86 BV, and Administration, which align with the announcer's identity as Microdata Aps, a Danish company operating under these brand names.
  • The inventory consists of three distinct IPv4 prefixes: 194.99.44.0/23, 95.142.104.0/24, and 193.202.74.0/24, all located in Denmark.

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

ASNetworkPaths seen
AS34766atom86 BV238

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 3 prefixes · 1.02K addresses IPv6 0 prefixes

CountryNamePrefixes
DKDenmark3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS204866
Registry name
MICRODATA-AS
Registrant
nia-mnt
Abuse contact
abuse@nianet.dk
Registered
2017-12-19
Last changed
2022-06-29
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 4 valid, 0 with no ROA
ROAs
3 authorising AS204866
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
4 naming AS204866

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: 445 networks and 1,817 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