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AS2546 National Center of Scientific Research DEMOKRITOS

Greece ARIADNE-T RIPE 1 IPv4 prefix 1 IPv6 prefix
IPv4 addresses
65,536
IPv6 /48 networks
1
RPKI
1 valid1 no ROA
Peers and downstreams
0

Holder

AS name
ARIADNE-T
Description
Ariadne-t Network Greek Academic & Research Computer Network NCSR Demokritos
Organisation
National Center of Scientific Research DEMOKRITOS
Abuse contact
noc@ariadne-t.gr
Assigned
1993-08-31
Registered
2002-09-19
Record last changed
2026-08-26 14:12 UTC

Upstream graph

Upstreams and their upstreams, from BGP paths
AS21320 GEANT Vereniging AS21320 · NL GEANT Vereniging AS5408 National Infrastructures for Research and Technology S.A. AS5408 · GR National Infrastructu… AS2546 National Center of Scientific Research DEMOKRITOS AS2546 · GR National Center of Sc…

Network health

Grade C · 73/100
partly Prefixes covered by valid ROAs
1 of 2 announced prefixes are RPKI valid, 1 have no ROA.		 13/25
pass No RPKI invalid announcements
None of the announcements is RPKI invalid.		 10/10
pass Announces IPv6
1 IPv6 prefix.		 15/15
partly More than one upstream
1 upstream seen in BGP.		 5/10
pass Working abuse contact
noc@ariadne-t.gr is published.		 15/15
fail Publishes a geofeed
No geofeed found. Without one, location databases have to guess.		 0/10
pass No prefixes smaller than /24 or /48
All prefixes are /24 (IPv4) or /48 (IPv6) or larger.		 10/10
pass Registry record maintained
Last changed 2026-08-26.		 5/5
Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.
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Routing changes

Last 30 days
No changes recorded in the last 30 days. Changes are recorded each time the routing data of this AS is refreshed. Get alerts in real time.

WHOIS

aut-num:        AS2546
as-name:        ARIADNE-T
descr:          Ariadne-t Network
descr:          Greek Academic & Research Computer Network
descr:          NCSR Demokritos
org:            ORG-NCOS1-RIPE
admin-c:        AN1558-RIPE
tech-c:         AN1558-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-by:         AS2546-MNT
created:        2002-09-19T15:18:58Z
last-modified:  2026-08-26T14:12:45Z
source:         RIPE
% 3 routing policy lines (import/export) not shown