asn.dev

Autonomous system

AS61351 Linfosys Linfosys BV

Unclassified RIPE

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

Summary

Linfosys

Netherlands · AI-generated

isp netherlands small

The AS handle is LINFOSYS, held by Linfosys BV.

What it's used for

  • The space carries infrastructure for Linfosys, a Dutch internet service provider, as indicated by the netname NL-LINFOSYS-20170601 and registrant Linfosys Support.
  • The AS announces 1024 IPv4 addresses in a single /22 prefix and 1 IPv6 prefix, with 2 observed neighbours, suggesting a small access or local service network.
  • Traffic from this AS consists of subscriber eyeballs and local internet access services provided by Linfosys to customers in the Netherlands.

Notable

  • Registrants agree with the announcer, with Linfosys Support and Linfosys BV listed for the announced prefix.
  • The address inventory is compact, consisting of one IPv4 /22 block and one IPv6 /32 prefix, typical for a small regional ISP.

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
AS33915Vodafone Libertel B.V.89
AS12315Quality Service Provider BV1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-08, 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
NLNetherlands2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS61351
Registry name
Linfosys
Registrant
nl-linfosys-1-mnt
Abuse contact
support@linfosys.nl
Registered
2020-05-14
Last changed
2020-05-14
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS61351
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS61351

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: 455 networks and 1,854 prefixes, as published 2026-11-09. 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