Autonomous system profile

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

AS203966

Announcement observedRIPE NCC

a1-as A1 Internet BV · a1-as

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

Last active10/16/2026, 00:00:00Snapshot expired

View network topology RDAP registration

ASN: AS203966
Registration country: Netherlands
Name: a1-as A1 Internet BV
Abbreviation: a1-as
Registration date: 9/22/2015, 10:16:22
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
213.171.70.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/26/2026, 08:00:00	10/10/2026, 08:00:00	✓	×	Currently valid

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

Registration and sources

Organization: a1-as A1 Internet BV
RIR: RIPE NCC
Registration country: Netherlands
Registration date: 9/22/2015, 10:16:22
Abuse contact: harry@a1.nl

Snapshot trend

10/10/2026, 17:09:161 v40 v61 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 · cha-la-bgp-observations