asn.dev

Autonomous system

AS39590 NDGF High energy physicists community in the nordics.

Unclassified RIPE

IPv4 addresses 960 4 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly DK
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 2 see address space

Summary

NORDUnet

Denmark · AI-generated

research education nordic hpc

NDGF is operated by NORDUnet, the Nordic University Network.

What it's used for

  • The address space carries high-performance computing and research infrastructure, evidenced by reverse DNS entries such as dcache10.hpc.ku.dk, pool14.hpc.uib.no, and gauda.ndgf.org.
  • The AS announces 960 IPv4 addresses across 4 prefixes and 1 IPv6 prefix, with only 1 observed neighbour, indicating a dedicated research network rather than a commercial transit or access provider.
  • Traffic consists of scientific data transfer, HPC cluster communications, and academic collaboration services within the Nordic region.

Notable

  • Registrants for all announced prefixes are consistent with the announcer, listing NORDUnet NOC and Nordic University NOC.
  • The address inventory is finely subdivided into specific functional blocks, including NDGF-CORE and NDGF-CENTERS, reflecting internal segmentation for different research centers.

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

1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS2603NORDUnet80

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, 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 4 prefixes · 960 addresses IPv6 1 prefixes

CountryNamePrefixes
DKDenmark5

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS39590
Registry name
NDGF
Registrant
NORDUNET-MNT
Abuse contact
abuse@nordu.net
Registered
2006-03-22
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS39590
ASPA
no ASPA record
IRR
50% registered · 1 of 2 announcements
Route objects
2 naming AS39590

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: 442 networks and 1,781 prefixes, as published 2026-10-16. 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