AS12923 — WIZARD-AS

AS12923 announces 2 IPv4 prefixes covering 12,288 addresses and 0 IPv6 prefixes.

About this network

Seventy-five BGP neighbours on two blocks, and not one reverse name.

What it's used for

• A German internet and systems provider. 12,288 addresses across two IPv4 prefixes, 75 observed BGP neighbours, and no IPv6 announced.

Notable

• The inventory is 85.112.224.0/19 and 81.201.224.0/20.
• The netnames are DE-WIZARD-20050201 and DE-WIZARD-20021017, three years apart.
• Both blocks end at .224.0, though they sit in different ranges.
• Six addresses were sampled and none returned a name.

Interesting

• Seventy-five neighbours is a peering profile, not a customer profile. A provider with 12,288 addresses and that many BGP relationships is spending its effort on exchanging traffic directly with other networks rather than on holding address space, which is what a regional provider does when transit is the expensive part of the bill.
• Two allocations three years apart, both landing at .224.0 in their respective ranges, is coincidence rather than design. The registry assigns from whatever is free, and patterns that look intentional in address data usually are not.
• Nothing answers reverse lookups. For a provider this is a real gap: mail servers on space with no reverse names get treated with suspicion by receivers, and traceroutes through the network show bare addresses. Whether that matters depends entirely on what the space is used for, and the absence itself is a small piece of evidence that it is not general hosting.
• No IPv6 at all from a network that peers with seventy-five others, most of which will have it.

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

Announced prefixes

• 81.201.224.0/20
• 85.112.224.0/19

Upstream networks

• AS9211 Nawork Internet Informationssysteme GmbH
• AS50629 LWLcom GmbH
• AS48362 Stadtwerke Feldkirch
• AS212024 Marc Schmitt
• AS34019 Hivane Association
• AS24482 SG.GS
• AS37100 SEACOM Limited
• AS20485 Joint Stock Company TransTeleCom
• AS34800 Securebit AG

Adjacent networks

• AS9211 Nawork Internet Informationssysteme GmbH
• AS50629 LWLcom GmbH
• AS20485 Joint Stock Company TransTeleCom
• AS48362 Stadtwerke Feldkirch
• AS34019 Hivane Association
• AS34800 Securebit AG
• AS37100 SEACOM Limited
• AS212024 Marc Schmitt
• AS24482 SG.GS

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• DE-CIX Hamburg — Hamburg, Germany