asn.dev

Autonomous system

AS34387 NETCREW Helsinki, Finland

Unclassified RIPE

IPv4 addresses 16.38K 1 prefixes
IPv6 prefixes 2 counted as prefixes, not addresses
Countries 1 mostly FI
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Netcrew

Finland · AI-generated

amateur radio business finnish

NETCREW is operated by Netcrew ry, a Finnish network operator.

What it's used for

  • The address space carries amateur radio digital communications infrastructure, evidenced by the AMPRNET netname on the 44.139.0.0/16 block and the FI-NETCREW-NET netname on the 85.188.0.0/18 block.
  • The AS announces 81920 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, with only 2 observed neighbours, indicating a small, specialized network rather than a large transit or access provider.

Notable

  • Registrants align with the announcer, with Amateur Radio Digital Communications holding the 44.139.0.0/16 space and Netcrew Network Operators Group; Netcrew ry holding the 85.188.0.0/18 space.
  • The inventory consists of two distinct IPv4 blocks, one dedicated to amateur radio digital communications and the other to the Netcrew network, alongside a single IPv6 prefix.

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

3 upstream, 0 downstream and 5 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6667Elisa Oyj142
AS49866Loopback Oy38
AS12552GlobalConnect AB1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 · 16.38K addresses IPv6 2 prefixes

CountryNamePrefixes
FIFinland3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS34387
Registry name
NETCREW
Registrant
MNT-NETCREW
Abuse contact
netops@netcrew.fi
Registered
2005-01-04
Last changed
2019-12-30
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 4 with no ROA
ROAs
0 authorising AS34387
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
6 naming AS34387

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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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