AS203311 CCDCOE NATO Cooperative Cyber Defence Centre of Excellence

CCDCOE NATO Cooperative Cyber Defence Centre of Excellence · registered in Estonia

IPv4 addresses1,0241 prefixes · <0.001% of announced IPv4

Rank in Estonia#67largest network in EE by IPv4 space, of 173 · 0.07% of EE

Rank worldwide#29,947of 79,396 networks with IPv4

IPv68 x /32 (524,288 x /48)1 prefixes

CountryEstonia183 ASNs registered there

Open AS203311 in ASN lookup Look up an IP in this network (185.139.252.1) All networks in Estonia

IPv4 prefixes

All 1 prefix, in address order.

185.139.252.0/22

IPv6 prefixes

All 1 prefix.

2a07:1180::/29

Similar-sized networks in Estonia

ASNNameIPv4 addresses

AS197354#64 DigitalEra-AS DigitalEra Tech OU1,280

AS203676#65 ARJOM-AS Arjom Arinenko1,280

AS215955#66 ALTEASYSTEMS-AS ALTEASYSTEMS OU1,280

AS205930#68 VIRTUAALCOM Virtuaal.com OU1,024

AS208834#69 COOPPANK Coop Pank AS1,024

AS209842#70 CYBEXER CybExer Technologies OU1,024

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources