Autonomous System

AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.

ISPActiveGermanyRIPE

AS680 (DFN) is an ISP network operated by Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. in Germany, registered with RIPE. It has 298 IPv4 prefixes with 7,984,384 addresses and 25 IPv6 prefixes, which makes it the 83rd largest of 82,612 active autonomous systems by IPv4 space.

IPv4 addresses7,984,384in 298 prefixes
IPv6 prefixes25≈ 6.3 × 10³⁰ addresses
Size rank#83of 82,612 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationVerein zur Foerderung eines Deutschen Forschungsnetzes e.V.
AS nameDFN
Websitedfn.de
Country Germany (DE)
Network typeISP
RegistryRIPE
Abuse contactabuse@dfn.de
Registered2002-09-20
Last updated2026-10-09

IPv4 prefixes

298 prefixes · 7,984,384 addresses
NetworkAddressesFirst – last address
134.106.0.0/15131,072134.106.0.0 – 134.107.255.255
141.44.0.0/15131,072141.44.0.0 – 141.45.255.255
193.174.0.0/15131,072193.174.0.0 – 193.175.255.255
194.94.0.0/15131,072194.94.0.0 – 194.95.255.255
87.77.0.0/1665,53687.77.0.0 – 87.77.255.255
128.7.0.0/1665,536128.7.0.0 – 128.7.255.255
128.176.0.0/1665,536128.176.0.0 – 128.176.255.255
129.26.0.0/1665,536129.26.0.0 – 129.26.255.255
129.70.0.0/1665,536129.70.0.0 – 129.70.255.255
129.217.0.0/1665,536129.217.0.0 – 129.217.255.255
129.247.0.0/1665,536129.247.0.0 – 129.247.255.255
130.73.0.0/1665,536130.73.0.0 – 130.73.255.255
130.75.0.0/1665,536130.75.0.0 – 130.75.255.255
130.133.0.0/1665,536130.133.0.0 – 130.133.255.255
130.149.0.0/1665,536130.149.0.0 – 130.149.255.255
130.183.0.0/1665,536130.183.0.0 – 130.183.255.255
131.173.0.0/1665,536131.173.0.0 – 131.173.255.255
131.188.0.0/1665,536131.188.0.0 – 131.188.255.255
131.220.0.0/1665,536131.220.0.0 – 131.220.255.255
131.234.0.0/1665,536131.234.0.0 – 131.234.255.255
132.176.0.0/1665,536132.176.0.0 – 132.176.255.255
132.180.0.0/1665,536132.180.0.0 – 132.180.255.255
132.187.0.0/1665,536132.187.0.0 – 132.187.255.255
132.195.0.0/1665,536132.195.0.0 – 132.195.255.255
132.199.0.0/1665,536132.199.0.0 – 132.199.255.255
The 25 largest of 298. The API and the database have all of them.

IPv6 prefixes

25 prefixes
  • 2001:4cf0::/29
  • 2a00:5ba0::/29
  • 2a04:dfc0::/29
  • 2a0e:bb00::/29
  • 2a12:c940::/29
  • 2a12:e140::/29
  • 2a12:eac0::/29
  • 2a13:dd80::/29
  • 2a14:8d80::/29
  • 2a02:c6a0::/30
  • 2001:638::/32
  • 2a02:d480::/32
  • 2a03:db80::/32
  • 2a0a:6200::/32
  • 2001:67c:2414::/48
  • 2a02:11f8:60::/48
  • 2a02:11f8:61::/48
  • 2a02:11f8:62::/48
  • 2a02:11f8:63::/48
  • 2a02:11f8:64::/48
  • 2a02:11f8:65::/48
  • 2a02:11f8:81::/48
  • 2a02:11f8:100::/48
  • 2a02:11f8:101::/48
  • 2a02:11f8:102::/48

Query AS680 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS680&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS680, with or without a key:

curl "https://api.ipapi.is/?q=134.106.0.1"

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