AS34520 DFG-AS Deutsche Forschungsgemeinschaft e.V.

DFG-AS Deutsche Forschungsgemeinschaft e.V. · registered in Germany

IPv4 addresses2,0481 prefixes · <0.001% of announced IPv4

Rank in Germany#815largest network in DE by IPv4 space, of 2,315 · <0.01% of DE

Rank worldwide#21,525of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryGermany2,599 ASNs registered there

Open AS34520 in ASN lookup Look up an IP in this network (83.143.0.1) All networks in Germany

IPv4 prefixes

All 1 prefix, in address order.

83.143.0.0/21

IPv6 prefixes

All 1 prefix.

2a01:a460::/32

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AS51137#817 VVS-mbH_AS Stadtwerke Saarbrucken GmbH2,048

AS51378#818 KLINIKUM Klinikum Ingolstadt GmbH2,048

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources