Longest Match / Networks

Autonomous system

AS680: Deutsches Forschungsnetz (DFN)

Germany · education

Estimated users is a published estimate of how many people use this network, extrapolated from 26,865 observations over a 60 day window. Large operators often run several networks, so a low figure can mean their customers reach the internet through a sibling network.

What this tells you

• Its space resolves to 4 countries, concentrated almost entirely in Germany (99% of the IPv4 space), so it is effectively a single-market network despite the spread.
• An estimated 56,654 people using this network are in Germany, <0.1% of everyone online there.
• 137 distinct organisations hold registered assignments inside this space, so an address here often belongs to one of their customers.

Countries in this space

Space we can place in a country covers 100% of this network's IPv4 space and 100% of its IPv6 space. The table below divides that space.

Country	IPv4 share	IPv6 share
Germany	99%	100%
United Kingdom	0.1%	-
Everything else (2 more)	<0.1%	-

Organisations holding assignments here

Registered organisations account for 91% of this network's IPv4 space and 100% of its IPv6 space. The table below divides that space. Registered holders come from the bulk whois that RIPE, APNIC and AFRINIC publish. ARIN and LACNIC do not publish theirs, so space held in North and South America is largely unattributed here.

Organisation	IPv4 share	IPv6 share
Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	8%	8%
Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V.	5%	1%
Freie Universitaet Berlin	3%	-
Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.	2%	1%
Technische Universitaet Dresden	2%	9%
Universitaet Wuerzburg	2%	-
Alfred-Wegener-Institut Helmholtz-Zentrum fuer Polar- und Meeresforschung	2%	-
Technische Universitaet Berlin	2%	-
Universitaet Muenster, CIT	0.9%	9%
Universitaet Siegen	0.9%	9%
Berliner Hochschule fuer Technik	0.9%	9%
Rheinische Friedrich-Wilhelms-Universitaet Bonn	0.9%	9%
Universitaet Bremen	0.9%	9%
Heinrich-Heine-Universitaet Duesseldorf	0.9%	9%
CISPA-Helmholtz-Zentrum fuer Informationssicherheit gGmbH	<0.1%	9%
Otto-von-Guericke-Universitaet Magdeburg	<0.1%	9%
Everything else (121 more)	68%	7%

Anonymizer signals

Flagged space covers <0.1% of this network's IPv4 space. The table below divides that space.

Category	IPv4 share
Tor exit	67%
Open proxy	33%

Every figure on this page is also JSON: /api/v2/directory/asn/680. Breakdowns paginate from there, so a table showing the largest rows here returns all of them. Read the API.