Autonomous system
AS51941 BASEN-EU
Unclassified RIPE Enterprise
Summary
BaseN
enterprise telecom finland
The AS handle BASEN-EU is held by BaseN Oy.
What it's used for
- The address space carries internal corporate infrastructure, evidenced by reverse DNS names such as
et1-20.er1.hel1.fi.basen.netandbdi2.r1x-deg1.hel.fi.basen.netwhich indicate specific equipment and site locations. - The network announces 2048 IPv4 addresses across 4 prefixes and 4 IPv6 prefixes, with only 3 observed routing neighbours, indicating a small, self-contained internal estate rather than a transit or large-scale access provider.
- Traffic from this AS consists of internal corporate communications and data center operations for BaseN, a Finnish technology company.
Notable
- Registrants for all announced prefixes are consistent with the announcer, listing "BaseN Oy" and "BaseN Administrator".
- The address inventory is finely subdivided into four distinct IPv4 blocks, reflecting site-by-site segmentation typical of a corporate network.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 2.05K addresses IPv6 4 prefixes
| Country | Name | Prefixes |
|---|---|---|
| FI | Finland | 8 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS51941- Registry name
- BASEN-EU
- Registrant
- MNT-BASEN
- Abuse contact
- abuse@basen.net
- Registered
- 2010-12-03
- Last changed
- 2025-07-02
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- BaseN Corporation
- Network type
- Enterprise
- Scope
- Not Disclosed
- Traffic ratio
- Not Disclosed
- Peering policy
- Open
- Website
- http://www.basen.net
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 10 valid, 0 with no ROA
- ROAs
- 13 authorising AS51941
- ASPA
- no ASPA record
- IRR
- 100% registered · 10 of 10 announcements
- Route objects
- 17 naming AS51941
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: 442 networks and 1,783 prefixes, as published 2026-10-20. 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