HomeASN LookupAS20965

AS20965 GEANT GEANT Vereniging

🇳🇱

Org handle: ORG-DLCU1-RIPE

The GEANT IP Service

RIPE NCCallocated
Announced Prefixes (BGP)
5total
3 IPv42 IPv6
IPv4 Addresses
Allocated (RIR)8,192
Announced (BGP)9,472
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)1.5×10²⁹
Prefix Limit (IPv4)
10
Prefix Limit (IPv6)
10
Country
🇳🇱 NL
RIR
RIPE NCC
Status
allocated
Allocated
2001-07-12

Routing hygiene

Score 14/100 · Low risk
RPKI ROA coverage
80%
1 prefix RPKI invalid
IRR route objects
100%
no origin mismatches
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
4
diversity 69/100
  • 20% of announced prefixes (1 of 5) have no valid ROA, 1 of them RPKI invalid

Based on 5 announced prefixes, updated daily (2026-10-24). How the score works · RPKI explained

Announced Prefixes

(BGP)5
|
Prefix
RPKI
IRR
Last Seen
62.40.96.0/19
 Valid
RIPE
2026-10-25
62.40.126.0/24
 Invalid-2026-10-25
83.97.92.0/22
 Valid
RIPE
2026-10-25
2001:798::/32
 Valid
RIPE
2026-10-25
2001:799::/32MOAS
 Valid
RIPE
2026-10-25

Allocated Prefixes

(RIR)1
Prefix
Country
RIR
Status
62.40.96.0/19🇳🇱 NLRIPENCCallocated

All 5 announced prefixes of AS20965 →

Downstream Customers(8)

ASNName
AS293🇺🇸ESNET - ESnet
AS559🇨🇭Switch SWITCH
AS680🇩🇪DFN Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.
AS1213🇮🇪Asiera ASIERA TECHNOLOGY SERVICES CLG
AS2602🇱🇺RESTENA Fondation RESTENA
AS2852🇨🇿CESNET2 CESNET z.s.p.o.
AS5408🇬🇷GR-NET National Infrastructures for Research and Technology S.A.
AS9885🇮🇳NKN-INTERNET-GW - NKN INTERNET GATEWAY NETWORK

BGP Neighbours

(seen in AS paths)

Upstreams (4)

Networks AS20965 hands its own prefixes to: transit providers, or peers at an exchange.

  • AS21320GEANT IAS VRF GEANT Vereniging3
  • AS24490Trans Eurasia Information Network (TEIN2) SG2
  • AS1853ACONET1
  • AS11537Internet21

Downstreams (37)

Networks whose own prefixes AS20965 passes on: usually its customers.

  • AS786JANET Jisc Services Limited41
  • AS137ASGARR Consortium GARR29
  • AS2611BELNET20
  • AS680DFN Verein Zur Foerderung Eines Deutschen Forschungsnetzes E.V16
  • AS2107ARNES NET ARNES11
  • AS5408GR NET National Infrastructures For Research And Technology S.A11
  • AS2852CESNET2 CESNET Z.S.P.O10
  • AS8501PIONIER Institute Of Bioorganic Chemistry Polish Academy Of Science, Poznan Supercomputing And Networking Center10
  • AS30983CNRST (Centre National Pour La Recherche Scientifique Et Technique) CNRST (Centre National Pour La Recherche Scientifique Et Technique)10
  • AS766RedIRIS Entidad Publica Empresarial Red.Es9
  • AS2614RoEduNet Agentia De Administrare A Retelei Nationale De Informatica Pentru Educatie Si Cercetare9
  • AS2607SANET Zdruzenie Pouzivatelov Slovenskej Akademickej Datovej Siete SANET6
  • AS2907Research Organization Of Information And Systems, National Institute Of Informatics6
  • AS8517ULAKNET National Academic Network And Information Center6
  • AS1103SURFNET NL SURF B.V5
  • AS2091Renater5
  • AS513CERN European Organization For Nuclear Research4
  • AS12687URAN User Association Of Ukrainian Research And Academic Network URAN4
  • AS1930RCCN Fundacao Para A Ciencia E A Tecnologia, I.P3
  • AS3221EENet Haridus Ja Teadusministeerium3
  • AS8895ISU King Abdul Aziz City For Science And Technology3
  • AS4538China Education And Research Network Center2
  • AS8581UOI University Of Ioannina2
  • AS137207Joint Universities Computer Centre Limited2
  • AS216467UNIBE LHEP Universitaet Bern2
  • AS378MACHBA IUCC Israel InterUniversity Computation Center1
  • AS1955HBONE KIFU (Governmental Info Tech Development Agency)1
  • AS2200Renater1
  • AS2602RESTENA Fondation RESTENA1
  • AS2603NORDUNET1
  • AS9199RENAM Public Association1
  • AS12046ASN CSC UOM University Of Malta1
  • AS20545GRENA Georgian Research And Educational Networking Association (GRENA)1
  • AS21274BAS NET State Scientific Enterprise 'United Institute Of Informatics Problems Of National Academy Of Sciences Of Belarus' (UIIP NASB)1
  • AS40981UNIVCG University Of Montenegro1
  • AS136968SingAREN1
  • AS198562SUM University Of Mostar1

Other adjacent networks (14)

Adjacent to AS20965 in the transit part of AS paths: peers, providers or customers.

  • AS27750Cooperacion Latino Americana De Redes Avanzadas142
  • AS6509CANARIE24
  • AS7497Computer Network Information Center Of Chinese Academy Of Sciences (CNIC CAS)23
  • AS9885NKN INTERNET GATEWAY NETWORK8
  • AS36944Ubuntunet Alliance For Research And Education Networking Ubuntunet Alliance For Research And Education Networking7
  • AS17579KISTI6
  • AS2847LITNET Kauno Technologijos Universitetas5
  • AS6802UNICOM B Bulgarian Research And Education Network Association (BREN)5
  • AS789Renater4
  • AS5538SigmaNet NIC Institute Of Mathematics And Computer Science Of University Of Latvia3
  • AS559Switch2
  • AS1213Asiera TECHNOLOGY SERVICES CLG2
  • AS6879ENSTINET2
  • AS202993IIT Institute Of Information Technologies Of National Academy Of Science Azerbaijan1

Transfer History

Registry transfers of AS20965 between organisations.

1
ASPA
No ASPA0 upstreams, 8 downstreams
Listed as Upstream Provider by
8 ASNs
View full ASPA details →
Abuse Contact
External Links
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Learn more

API
Open
GEThttps://api.ipctl.io/v1/asn/20965

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/20965" | jq