AS12502 — NEPUSTILNET-AS01 Rathausstr. 3

Network type: residential

AS12502 announces 6 IPv4 prefixes covering 9,984 addresses and 2 IPv6 prefixes.

About this network

A small German ISP whose six blocks answer to four different holders, and whose AS name ends in a street address.

What it's used for

• Business internet access and hosting. 9,984 addresses in six IPv4 prefixes, two IPv6 prefixes, and 12 observed BGP neighbours.

Notable

• The AS handle is NEPUSTILNET-AS01 Rathausstr. 3 — the network's name followed by where it lives.
• Only two blocks are registered to Nepustil itself, as NEPUSTIL and DR-NEPUS-NET. The others belong to Bernhard Zintgraf (BEZITECH-PI-NET), Kurt Jaeger (OPSEC-LAN) and KONSEC GmbH.
• Reverse names track the registrant rather than the announcer: pi23-1-128.bezitech.de, fw.opsec.eu and kreuzeiche128.nepustil.net all sit under this one AS.
• One address answers pi23-1-broadcast.bezitech.de, and another testbrick.Nepustil.NET with its capitals intact.
• The IPv6 announcements are a /32 and a /48.

Interesting

• Six prefixes, four registrants and three reverse-DNS domains raises a question the records answer only halfway: whether these are customers whose own space is announced for them, or smaller networks absorbed over time. Either way the registry preserved each original holder's name instead of overwriting it.
• fw.opsec.eu and pi23-1-broadcast are hand-written names. A generated reverse zone numbers every address alike; these describe what the machine is, which only happens when somebody expects to read the name later.

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

Announced prefixes

• 193.96.243.0/24
• 193.105.105.0/24
• 194.55.100.0/23
• 195.93.166.0/23
• 195.190.145.0/24
• 212.71.192.0/19
• 2001:67c:684::/48
• 2001:14f8::/32

Upstream networks

• AS5405 Inter.link GmbH
• AS1299 Arelion Sweden AB
• AS33843 Dr.-Ing. Nepustil & Co. GmbH Internet Service Center Ingenieurgesellschaft fuer Systemsoftware und Kommunikationstechnik

Downstream networks

• AS203132 SySS GmbH
• AS49499 Industrie und Handelskammer Reutlingen
• AS206394 CeGaT GmbH
• AS43910 Intra2net AG
• AS198818 ISP Service eG
• AS209846 SWP Stadtwerke Pforzheim GmbH & Co. KG

Adjacent networks

• AS5405 Inter.link GmbH
• AS1299 Arelion Sweden AB
• AS203132 SySS GmbH
• AS33843 Dr.-Ing. Nepustil & Co. GmbH Internet Service Center Ingenieurgesellschaft fuer Systemsoftware und Kommunikationstechnik
• AS49499 Industrie und Handelskammer Reutlingen
• AS206394 CeGaT GmbH
• AS43910 Intra2net AG
• AS198818 ISP Service eG
• AS209846 SWP Stadtwerke Pforzheim GmbH & Co. KG

Internet exchanges

• KleyReX Internet Exchange — Frankfurt, Germany
• Stuttgarter Internet Exchange — Stuttgart, Germany