AS5408 — GR-NET National Infrastructures for Research and Technology S.A.

Network type: education

AS5408 announces 66 IPv4 prefixes covering 179,712 addresses and 116 IPv6 prefixes.

About this network

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 education rather 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.

Announced prefixes

• 37.32.128.0/17
• 44.31.164.0/24
• 62.217.64.0/18
• 83.212.0.0/20
• 83.212.16.0/21
• 83.212.24.0/22
• 83.212.32.0/19
• 83.212.68.0/22
• 83.212.72.0/21
• 83.212.80.0/21
• 83.212.92.0/22
• 83.212.96.0/19
• 83.212.168.0/21
• 83.212.176.0/21
• 83.212.200.0/22
• 83.212.208.0/20
• 83.212.224.0/21
• 83.212.232.0/22
• 83.212.240.0/21
• 83.212.248.0/24
• 83.212.251.0/24
• 83.212.252.0/22
• 91.227.108.0/24
• 109.107.139.0/24
• 143.233.68.0/24
• 143.233.182.0/23
• 143.233.184.0/22
• 143.233.188.0/23
• 143.233.204.0/24
• 150.140.128.0/17
• 185.5.76.0/22
• 185.81.196.0/22
• 193.105.109.0/24
• 193.218.36.0/24
• 193.218.124.0/23
• 194.42.50.0/23
• 194.42.52.0/23
• 194.42.54.0/24
• 194.177.192.0/24
• 194.177.196.0/23
• 194.177.200.0/21
• 194.177.208.0/20
• 195.130.67.0/24
• 195.130.68.0/22
• 195.130.72.0/21
• 195.130.80.0/20
• 195.130.123.0/24
• 195.251.0.0/19
• 195.251.33.0/24
• 195.251.34.0/23
• 195.251.38.0/23
• 195.251.40.0/21
• 195.251.49.0/24
• 195.251.50.0/23
• 195.251.52.0/22
• 195.251.56.0/21
• 195.251.96.0/22
• 195.251.102.0/23
• 195.251.104.0/22
• 195.251.108.0/23
• 195.251.112.0/21
• 195.251.124.0/22
• 195.251.128.0/20
• 195.251.144.0/21
• 195.251.176.0/21
• 195.251.247.0/24
• 2001:648::/35
• 2001:648:2001::/48
• 2001:648:2002::/47
• 2001:648:2004::/46
• 2001:648:2008::/45
• 2001:648:2012::/47
• 2001:648:2014::/46
• 2001:648:2018::/45
• 2001:648:2020::/43
• 2001:648:2040::/42
• 2001:648:2080::/41
• 2001:648:2100::/43
• 2001:648:2121::/48
• 2001:648:2122::/47
• 2001:648:2124::/46
• 2001:648:2128::/45
• 2001:648:2130::/44
• 2001:648:2140::/42
• 2001:648:2180::/41
• 2001:648:2200::/40
• 2001:648:22b1::/48
• 2001:648:22b2::/47
• 2001:648:22b4::/46
• 2001:648:22b8::/45
• 2001:648:22c0::/42
• 2001:648:2303::/48
• 2001:648:2304::/46
• 2001:648:2308::/45
• 2001:648:2310::/44
• 2001:648:2320::/44
• 2001:648:2331::/48
• 2001:648:2332::/47
• 2001:648:2334::/46
• 2001:648:2338::/45

and 82 more.

Upstream networks

• AS21320 GEANT Vereniging
• AS13335 Cloudflare, Inc.
• AS20965 GEANT Vereniging
• AS3491 PCCW Global (HK) Ltd.
• AS8280 SYNAPSECOM S.A. Provider of Telecommunications and Internet Services

Downstream networks

• AS8248 Computer Technology Institute and Press "Diophantus"
• AS8581 University Of Ioannina
• AS8762 Hellenic Mediterranean University
• AS12402 University of Piraeus
• AS15690 NATIONAL OBSERVATORY OF ATHENS
• AS8643 NATIONAL AND KAPODISTRIAN UNIVERSITY OF ATHENS
• AS8991 Hellenic Centre for Marine Research
• AS31563 Hellenic National Meteorological Service
• AS8617 of the Aegean
• AS8618 University
• AS9069 UNIWA
• AS8253 Democritus University of Thrace
• AS8611 University of Economics and Business
• AS15948 fundamental and technological research
• AS5489 International Hellenic University
• AS12364 University of Macedonia, Economic and Social Sciences
• AS8522 Foundation of Research and Technology Hellas
• AS5470 Aristotle University of Thessaloniki
• AS6867 University of Crete
• AS20813 Hellenic Open University
• AS50148 Elliniki Radiofonia Tileorasi (ERT) SA
• AS202640 KENTRO POLITISMOU IDRYMA STAVROS NIARCHOS MONOPROSOPI A.E.
• AS2546 National Center of Scientific Research DEMOKRITOS
• AS47616 Center for Research and Technology Hellas (CERTH)
• AS3323 National Technical University of Athens

Adjacent networks

• AS21320 GEANT Vereniging
• AS20965 GEANT Vereniging
• AS8248 Computer Technology Institute and Press "Diophantus"
• AS8581 University Of Ioannina
• AS8762 Hellenic Mediterranean University
• AS3491 PCCW Global (HK) Ltd.
• AS12402 University of Piraeus
• AS8643 NATIONAL AND KAPODISTRIAN UNIVERSITY OF ATHENS
• AS15690 NATIONAL OBSERVATORY OF ATHENS
• AS13335 Cloudflare, Inc.
• AS8522 Foundation of Research and Technology Hellas
• AS8991 Hellenic Centre for Marine Research
• AS31563 Hellenic National Meteorological Service
• AS8617 of the Aegean
• AS8618 University
• AS9069 UNIWA
• AS8253 Democritus University of Thrace
• AS8611 University of Economics and Business
• AS15948 fundamental and technological research
• AS5489 International Hellenic University
• AS12364 University of Macedonia, Economic and Social Sciences
• AS5470 Aristotle University of Thessaloniki
• AS6867 University of Crete
• AS8280 SYNAPSECOM S.A. Provider of Telecommunications and Internet Services
• AS20813 Hellenic Open University

Routing security

• RPKI: 34 valid, 0 invalid and 6 not-found announcements; 23 ROAs.
• ASPA: 3 authorised providers.
• IRR: 100% of announcements registered; 428 route objects.
• Listed in as-sets: AS-ACNAIX, AS-CYTANET-AMSIX-EXEPTIONS, AS-GRIX, AS-GRIX-ATH, AS-GRIX-ATH-RS, AS-GRIX-THESS, AS-GRIX-THESS-RS, AS-GRNET, AS-KDDCUSTOMER2, AS-MGRIX2, AS-RIS-RRC25, AS-SCHERINGNRNS, AS-TELSTRA-INTL-CUSTOMERS, AS-UDOS, AS13335:AS-CUSTOMERS, AS3329:AS-HOLIX, AS37271:AS-TEST-CF, AS5408:AS-TO-AIX, AS5408:AS-TO-GEANT, AS5408:AS-TO-GRIX.

Internet exchanges

• Greek Internet Exchange - Athens — Athens, Greece
• Greek Internet Exchange - Thessaloniki — Thessaloniki, Greece