AS12971 — BIOS-AT Fasangartengasse 1

AS12971 announces 1 IPv4 prefixes covering 8,192 addresses and 0 IPv6 prefixes.

About this network

The sixth AS handle in this range with a street address in it.

What it's used for

• An Austrian internet and web hosting provider. 8,192 addresses in one IPv4 prefix, two observed BGP neighbours, and no IPv6 announced.

Notable

• The whole inventory is 195.110.192.0/19, announced as a single block.
• Its netname is AT-VIENNAWEB-970424, using the two-digit year form for 1997.
• The AS handle is BIOS-AT Fasangartengasse 1.
• One of three sampled addresses returned a name: nat255.wrk.at.

Interesting

• Six handles in this range now carry postal addresses. The pattern is consistent enough to be a misunderstanding of the field rather than a series of individual mistakes, and it always originates the same way: a form asked for details of the organisation and somebody answered fully.
• The handle also begins BIOS, matching neither the company name nor the domain in its reverse DNS. Three identities in a record with one block in it.
• nat255.wrk.at names a network address translation gateway on a fourth domain. A /19 fronted by NAT devices means the public addresses are shared rather than assigned, and 8,192 addresses can serve far more customers than that number suggests.
• The 1997 netname uses two digits for the year while other records in this range from the same period use four. Both forms ran side by side for over a decade, so the format reflects who filed the request rather than when.

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

Announced prefixes

• 195.110.192.0/19

Upstream networks

• AS20751 AZISTA GmbH

Downstream networks

• AS31239 Johann Baldermann

Adjacent networks

• AS20751 AZISTA GmbH
• AS31239 Johann Baldermann