asn.dev

Autonomous system

AS204589 MAINXS

Unclassified ARIN

IPv4 addresses 1.54K 4 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly NL
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

MainXS

Netherlands · AI-generated

business netherlands enterprise

The AS handle MAINXS is held by MainXS Group B.V.

What it's used for

  • The address space carries corporate infrastructure, evidenced by netnames NL-MAINXS-20160503 and NL-MAINXS-20180213 registered to MainXS Group B.V.
  • The inventory consists of 1536 IPv4 addresses across 4 prefixes, with 0 IPv6 prefixes announced.
  • With only 1 observed neighbour, the network operates as a small, self-contained corporate estate rather than a transit or access provider.
  • Traffic from this AS consists of internal corporate endpoints and services for the MainXS Group, a Dutch IT services and managed services provider.

Notable

  • Registrants for three of the four prefixes explicitly name MainXS Group B.V., aligning with the AS holder.
  • The prefix 185.226.138.0/23 carries the netname Steam with a registrant of Abuse-C Role, which does not match the primary holder name.
  • The address inventory is small and finely subdivided into four distinct blocks, consistent with internal site segmentation.

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
AS41960Nextpertise B.V.290

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 4 prefixes · 1.54K addresses IPv6 0 prefixes

CountryNamePrefixes
NLNetherlands4

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS204589
Registry name
mainxs
Registrant
lir-nl-mainxs-1-MNT
Abuse contact
monitoring@mainxs.nl
Registered
2018-02-13
Last changed
2024-10-18
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 5 valid, 0 with no ROA
ROAs
6 authorising AS204589
ASPA
no ASPA record
IRR
100% registered · 5 of 5 announcements
Route objects
6 naming AS204589

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: 443 networks and 1,779 prefixes, as published 2026-10-24. 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