AS12816 MWN-AS Leibniz-Rechenzentrum

MWN-AS Leibniz-Rechenzentrum · registered in Germany

IPv4 addresses395,0089 prefixes · 0.013% of announced IPv4

Rank in Germany#17largest network in DE by IPv4 space, of 2,315 · 0.35% of DE

Rank worldwide#675of 79,396 networks with IPv4

IPv68 x /32 (524,288 x /48)1 prefixes

CountryGermany2,599 ASNs registered there

Open AS12816 in ASN lookup Look up an IP in this network (129.187.0.1) All networks in Germany

IPv4 prefixes

All 9 prefixes, in address order.

129.187.0.0/16
138.244.0.0/15
138.246.0.0/16
141.40.0.0/16
141.84.0.0/16
192.54.42.0/24
192.68.211.0/24
192.68.212.0/22
192.129.1.0/24

IPv6 prefixes

All 1 prefix.

2001:4ca0::/29

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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