AS12816 — MWN-AS

Network type: hosting

AS12816 announces 9 IPv4 prefixes covering 395,008 addresses and 1 IPv6 prefixes.

About this network

395,008 addresses, four legacy /16s, an IPv6 /29, and two BGP neighbours.

What it's used for

• The shared network of the Munich universities and research institutes, run by a Bavarian academic computing centre. 395,008 addresses across nine IPv4 prefixes, one IPv6 prefix, and two observed BGP neighbours.

Notable

• The large blocks are 138.244.0.0/15, 129.187.0.0/16, 138.246.0.0/16, 141.40.0.0/16 and 141.84.0.0/16, alongside 192.68.212.0/22, 192.68.211.0/24, 192.54.42.0/24 and 192.129.1.0/24.
• Netnames include LRZ-MUNICH-NET, LRZ-MUNICH, LRZ-NET, LRZ-NET1, LRZ-WEIHSTEPH, LMU-WIFO-INK, BL-NFS-LAN and MPISOC-LAN.
• IPv6 is 2001:4ca0::/29.
• The registry lookup for 138.244.0.0/15 failed, so nothing here describes that block's record.
• Eighteen addresses were sampled and none returned a name.

Interesting

• Four /16s and a /15 is the address footprint of an organisation that was on the internet before addresses were rationed. Universities received space by asking for it, and those allocations are larger than anything a comparable institution could obtain today.
• The netnames read as a campus directory: a main site, an agricultural campus, a faculty institute, a Max Planck institute, and a LAN named after the file-sharing protocol it was built for. This is not one network but a federation, and the registry preserves the seams.
• 2001:4ca0::/29 is eight times the size of the /32 most networks receive. National research networks are allocated as if they were registries themselves, because they hand space onward to member institutions.
• Two neighbours for 395,008 addresses is the signature of academic networking: research traffic moves over a dedicated national backbone rather than commercial transit, so the whole federation reaches the wider internet through very few doors.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 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
• 2001:4ca0::/29

Upstream networks

• AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.

Downstream networks

• AS209335 Technical University of Munich

Adjacent networks

• AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.
• AS209335 Technical University of Munich