Autonomous system profile

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

AS203740

Announcement observedRIPE NCC

CAK CAK (ZBO) · CAK

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

Last active10/10/2026, 15:41:21Snapshot expired

View network topology RDAP registration

ASN: AS203740
Registration country: Netherlands
Name: CAK CAK (ZBO)
Abbreviation: CAK
Registration date: 11/10/2015, 10:03:40
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
185.125.40.0/23BGP · 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: CAK CAK (ZBO)
RIR: RIPE NCC
Registration country: Netherlands
Registration date: 11/10/2015, 10:03:40
Abuse contact: inet@hetcak.nl

Snapshot trend

10/10/2026, 15:41:211 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 · rir-rdap-asn · iana-rdap-asn-bootstrap