AS12762 — VTG-

AS12762 announces 4 IPv4 prefixes covering 13,312 addresses and 1 IPv6 prefixes.

About this network

A regional IT services company announcing its own space alongside the local power utility's.

What it's used for

• IT and telecommunications services for a region of Austria. 13,312 addresses in four IPv4 prefixes, one IPv6 prefix, and 10 observed BGP neighbours.

Notable

• The largest block, 212.51.224.0/19, carries the netname AT-VTG-19991027; the newest, 185.210.12.0/22, is AT-VTG-20170626.
• Two /21s are registered as AT-VKW-NET to illwerke vkw AG, not to the announcer.
• The IPv6 announcement is 2a00:40c0::/31.
• One sampled address answered, as egvbredzfw1-gw.egv.at.

Interesting

• The utility's blocks sitting inside a services company's AS is the shape of a regional group: the power company owns the address space, the IT arm runs the network, and the registry keeps both facts. Municipal and regional utilities were often the first organisations in their area with fibre in the ground, and the internet business grew out of that.
• fw1-gw in a reverse name is a firewall acting as a gateway, numbered because there is more than one. Reverse DNS that names equipment by role rather than by address is written by hand, which means somebody decided these particular hosts were worth naming.
• A /31 is an odd size for IPv6. It does not fall on a 4-bit boundary, so its reverse zone cannot be delegated as one piece — it takes two /32-sized zones to cover.
• The netname dates it to 27 October 1999, one day off a batch date seen elsewhere in this range.

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

Announced prefixes

• 185.210.12.0/22
• 193.186.88.0/21
• 193.186.96.0/21
• 212.51.224.0/19
• 2a00:40c0::/31

Upstream networks

• AS8447 A1 Telekom Austria AG
• AS1853 ACONET
• AS5385 Russmedia IT GmbH
• AS49432 Dominic Schallert trading as schallert.com e.U.
• AS58115 SwissIX Internet Exchange

Adjacent networks

• AS8447 A1 Telekom Austria AG
• AS1853 ACONET
• AS5385 Russmedia IT GmbH
• AS49432 Dominic Schallert trading as schallert.com e.U.
• AS58115 SwissIX Internet Exchange

Internet exchanges

• Rheintal Internet Exchange — Eschen, Liechtenstein