Autonomous system profile

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

AS203311

Announcement observedRIPE NCC

NATO Cooperative Cyber Defence Centre of Excellence · CCDCOE

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

Last active10/10/2026, 13:22:22Snapshot expired

View network topology RDAP registration

ASN: AS203311
Registration country: Estonia
Name: NATO Cooperative Cyber Defence Centre of Excellence
Abbreviation: CCDCOE
Registration date: 2/16/2016, 13:18:19
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
185.139.252.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/26/2026, 08:00:00	10/10/2026, 08:00:00	✓	×	Historical record

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

Registration and sources

Organization: NATO Cooperative Cyber Defence Centre of Excellence
RIR: RIPE NCC
Registration country: Estonia
Registration date: 2/16/2016, 13:18:19
Abuse contact: abuse@c-lab.ee

Snapshot trend

10/10/2026, 13:22:221 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