Autonomous system profile

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

AS35096

Announcement observedRIPE NCC

Alef Nula a.s. · ALEFNULA

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: AS35096
Registration country: Czechia
Name: Alef Nula a.s.
Abbreviation: ALEFNULA
Registration date: 6/2/2005, 13:07:44
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
193.239.0.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 16:00:00	10/2/2026, 16:00:00	✓	×	Historical record
193.239.0.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 16:00:00	10/2/2026, 16:00:00	✓	×	Historical record
193.239.1.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 16:00:00	10/2/2026, 16:00:00	✓	×	Historical record
193.239.2.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 16:00:00	10/2/2026, 16:00:00	✓	×	Historical record

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

Registration and sources

Organization: Alef Nula a.s.
RIR: RIPE NCC
Registration country: Czechia
Registration date: 6/2/2005, 13:07:44
Abuse contact: petr.vacha@alef.com

Snapshot trend

10/2/2026, 19:39:524 v41 v62 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 · iana-rdap-asn-bootstrap · rir-rdap-asn · cha-la-bgp-observations