Autonomous system
AS680 DFN Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.
Unclassified RIPE
Summary
DFN (German National Research and Education Network)
education research legacy
The Deutsches Forschungsnetz (DFN), Germany's national research and education network, run by the Verein zur Förderung eines Deutschen Forschungsnetzes e.V.
What it's used for
- Connecting German universities and research institutions to a shared national research network (an NREN).
Notable
- A research / education network serving institutions, not a commercial ISP.
- Holds a very large legacy IPv4 footprint reflecting its role connecting the German research community.
- The low AS number reflects an allocation from the internet's earliest years.
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 5 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.193.222 |
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.213.192 |
| DE-CIX Hamburg | Hamburg, Germany | 185.1.210.118 |
| Berlin Commercial Internet Exchange | Berlin, Germany | 193.178.185.42 |
| Megaport Dusseldorf IX | Düsseldorf, Germany | 194.146.118.60 |
Transit providers
30 upstream, 31 downstream and 101 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 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 375 prefixes · 7.67M addresses IPv6 155 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 530 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS680- Registry name
- DFN
- Registrant
- DFN-MNT
- Abuse contact
- abuse@dfn.de
- Registered
- 2002-09-20
- Last changed
- 2026-10-09
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 83% valid · 265 valid, 55 with no ROA
- ROAs
- 284 authorising AS680
- ASPA
- 6 declared providers
- IRR
- 99.7% registered · 319 of 320 announcements
- Route objects
- 520 naming AS680
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 1,772 prefixes, as published 2026-10-15. 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