asn.dev

Autonomous system

AS20965 GEANT The GEANT IP Service

Unclassified RIPE

IPv4 addresses 9.22K 2 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly NL
Exchanges 0 recorded by PCH
Upstreams 6 56 downstream
Flagged prefixes 0 none

Summary

GEANT

Netherlands · AI-generated

education research transit netherlands

The AS handle GEANT is held by GEANT Vereniging.

What it's used for

  • The address space carries research and education infrastructure, evidenced by netnames NL-GEANT-20010717 and GEANT_IAS_VRF and reverse DNS entries like test.nmaas.geant.org and test-a10-controller01.geant.org.
  • The AS announces 9,216 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, while maintaining 72 observed neighbours; this ratio of moderate address space to high peering density indicates a transit or backbone role for the European research network.

Notable

  • Registrants for both announced prefixes are consistent with the announcer, listing GEANT Operations, GEANT Vereniging, and GEANT CERT (formerly DANCERT).
  • The address inventory consists of two distinct IPv4 blocks, 62.40.96.0/19 and 83.97.92.0/22, alongside a single IPv6 prefix, 2001:798::/31.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

6 upstream, 56 downstream and 119 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS21320GEANT Vereniging122
AS11537Internet26
AS1103SURF B.V.4
AS24490Trans-Eurasia Information Network (TEIN2) - SG4
AS293ESnet2
AS7575Australian Academic and Research Network (AARNet)1

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

Shape and geography

IPv4 2 prefixes · 9.22K addresses IPv6 1 prefixes

CountryNamePrefixes
NLNetherlands3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS20965
Registry name
GEANT
Registrant
DANTE-MNT
Abuse contact
cert@geant.org
Registered
2002-09-25
Last changed
2026-09-08
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 4 valid, 0 with no ROA
ROAs
4 authorising AS20965
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
4 naming AS20965

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

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

Cross-check