asn.dev

Autonomous system

AS203151 NKHN-AS

Unclassified RIPE

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

Summary

NKHN

Netherlands · AI-generated

ipv6 netherlands small

The AS handle NKHN-AS is held by NKHN, a trading name for Sander Ruitenbeek.

What it's used for

  • The address space consists of a single IPv6 prefix, 2001:678:ed4::/48, with no IPv4 inventory.
  • The network announces one prefix and maintains a single observed neighbour, indicating a minimal footprint with limited peering relationships.

Notable

  • The registry holder is identified as Sander Ruitenbeek trading as NKHN, consistent with the AS handle.
  • The inventory is exclusively IPv6, comprising a single /48 block.

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

ASNetworkPaths seen
AS44103The Mastermind Holding B.V.38

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
NLNetherlands1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS203151
Registry name
NKHN-AS
Registrant
NKHN-MNT
Abuse contact
abuse@nkhn.nl
Registered
2022-08-26
Last changed
2026-10-06
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS203151
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS203151

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