Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS51941

Announcement observedRIPE NCC

BASEN-EU BaseN Oy · BASEN-EU

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/4/2026, 19:07:26Snapshot expired

View network topology RDAP registration

ASN: AS51941
Registration country: Finland
Name: BASEN-EU BaseN Oy
Abbreviation: BASEN-EU
Registration date: 12/3/2010, 08:36:08
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
185.128.255.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/20/2026, 08:00:00	10/28/2026, 00:00:00	✓	×	Currently valid
46.183.72.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/20/2026, 08:00:00	10/28/2026, 00:00:00	✓	×	Currently valid
46.183.74.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/20/2026, 08:00:00	10/28/2026, 00:00:00	✓	×	Currently valid
46.183.76.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/20/2026, 08:00:00	10/28/2026, 00:00:00	✓	×	Currently valid
46.183.78.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/20/2026, 08:00:00	10/28/2026, 00:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: BASEN-EU BaseN Oy
RIR: RIPE NCC
Registration country: Finland
Registration date: 12/3/2010, 08:36:08
Abuse contact: abuse@basen.net

Snapshot trend

10/4/2026, 19:07:265 v45 v63 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · rir-rdap-asn · iana-rdap-asn-bootstrap