Autonomous system
AS5408 GR-NET www.grnet.gr
Education RIPE
Summary
National Infrastructures for Research and Technology (GRNET)
education research nren
GRNET is Greece's National Research and Education Network, the backbone connecting the country's universities, research centres, and public bodies to each other and internationally.
What it's used for
- Linking Greek universities, research institutes, and schools over a national high-speed backbone, with onward peering to GÉANT and the wider internet.
Notable
- As an NREN, addresses here belong to connected academic and research institutions, classified
educationrather than commercial hosting. - GRNET also operates national cloud, HPC, and e-infrastructure services for the Greek research and education community.
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
Recorded at 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Greek Internet Exchange - Athens | Athens, Greece | 176.126.38.1 |
| Greek Internet Exchange - Thessaloniki | Thessaloniki, Greece | 185.1.123.20 |
Transit providers
5 upstream, 30 downstream and 59 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 91 prefixes · 180K addresses IPv6 127 prefixes
| Country | Name | Prefixes |
|---|---|---|
| GR | Greece | 218 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS5408- Registry name
- GR-NET
- Registrant
- GRNET-NOC
- Abuse contact
- abuse@grnet.gr
- Registered
- 1970-01-01
- Last changed
- 2021-12-31
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 85% valid · 34 valid, 6 with no ROA
- ROAs
- 23 authorising AS5408
- ASPA
- 3 declared providers
- IRR
- 100% registered · 40 of 40 announcements
- Route objects
- 428 naming AS5408
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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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