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Summary IP address summary information Name
NATO Cooperative Cyber Defence Centre of Excellence Country
Website
Hosted domains
1 IPv4 addresses
1,024 IPv6 addresses
6.34 × 1029 ASN type
Government Registry
RIPE Allocated
10 years ago on Feb 16, 2016 Updated
8 years ago on Sep 4, 2018
WHOIS
ASHandle: █████
OrgID: █████
ASName: ██████
ASNumber: AS█████
RegDate: ████-██-██
Updated: ████-██-██
TechHandle: ████-████
Source: ████
Powered by ASN to WHOIS data Important routers in AS203311
What is an ASN? Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.
The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS203311 at robtex .
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Traceroute Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more. Traceroute →
$ traceroute -a -n -q1 -f3 185.139.254.1
traceroute to 185.139.254.1 (185.139.254.1 ): 64 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in Tallinn, EE
On November 6, 2026
There are 2 peers for this ASN.
There are 2 upstreams for this ASN.
There are 0 downstreams for this ASN.
No downstreams found.
Important routers in AS203311 Share of IPv4 footprint per hexagon Less More
Held location over 90 days 100%
Held location over 1 year 100%
Median days between moves 1,260 days
Geolocation scope City How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.
There are 1 domain names hosted across 1 IP addresses on this ASN.
Pingable IPs 6 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more
IP Address ASN Details 185.139.252.20 Ping AS203311 NATO Cooperative Cyber Defence Centre of Excellence #58,533 0.60ms from Tallinn, EE 2a07:1180:: Ping AS203311 NATO Cooperative Cyber Defence Centre of Excellence #58,533 0.86ms from Tallinn, EE 185.139.255.246 Ping AS203311 NATO Cooperative Cyber Defence Centre of Excellence #58,533 0.41ms from Tallinn, EE 2a07:1180:1::1 Ping AS203311 NATO Cooperative Cyber Defence Centre of Excellence #58,533 0.77ms from Tallinn, EE 185.139.253.137 Ping AS203311 NATO Cooperative Cyber Defence Centre of Excellence #58,533 1.72ms from Tallinn, EE 185.139.254.1 Ping AS203311 NATO Cooperative Cyber Defence Centre of Excellence #58,533 0.86ms from Tallinn, EE
Activity A weak daily rhythm — a blend of human and always-on traffic (carrier-NAT, mobile, or proxy-heavy).
Times shown in Estonia local time (UTC+2). Less More
Peak hour 14:00–15:00
Active hours 24 hrs (around the clock)
Weekend vs weekday weekends heavier
Busiest day Sun
Network type Government
Geography Estonia 
