Autonomous system
AS2546 ARIADNE-T Ariadne-t Network
Education RIPE
Summary
National Centre for Scientific Research "Demokritos" (Ariadne)
education research legacy
ARIADNE-T is the Ariadne network, Greece's early research and academic network, operated by the National Centre for Scientific Research "Demokritos" in Athens.
What it's used for
- Connecting Greek research and academic institutions (and some industrial R&D) to the internet, run from the Demokritos NOC.
Notable
- An early Greek NREN, tracing to the 1980s "Ariadne" programme and an early participant in European research networking, rather than a commercial ISP.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS5408 | National Infrastructures for Research and Technology S.A. | 96 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-24, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 18 prefixes · 62.98K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| GR | Greece | 19 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS2546- Registry name
- ARIADNE-T
- Registrant
- AS2546-MNT
- Abuse contact
- noc@ariadne-t.gr
- Registered
- 2002-09-19
- Last changed
- 2026-08-26
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 50% valid · 1 valid, 1 with no ROA
- ROAs
- 1 authorising AS2546
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 2 naming AS2546
Reputation
Classification and threat
Education University, school or national research and education network.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,779 prefixes, as published 2026-10-24. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere