AS12992 — PROSZYNSKI_MEDIA_AS

AS12992 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

A publishing house on a single /24, with underscores where every neighbour uses hyphens.

What it's used for

• The network of a Polish book and magazine publisher. 256 addresses in one IPv4 prefix, two observed BGP neighbours, and no IPv6 announced.

Notable

• The whole inventory is 193.218.115.0/24, netname PROSZYNSKIMEDIANETWORK.
• The AS handle is PROSZYNSKIMEDIAAS, also underscored.
• First observed in the routing archive in August 2000.
• Three addresses were sampled and none returned a name.

Interesting

• Underscores in both the handle and the netname, where nearly every other record in this range uses hyphens. Underscores are not valid in hostnames, which is why the hyphen convention exists at all, but registry name fields have no such restriction and so the habit survives wherever someone brought it from another system.
• A publisher with its own AS number is holding a routing identifier for a network of 256 addresses. In 2000 that was how a company with two upstream connections stayed reachable if one failed, and the arrangement has simply persisted; nothing about publishing requires it.
• The diacritic in the company's name is stripped in every field of the record. Registry systems of this era were built for a restricted character set, and national alphabets were flattened on entry. The company still spells itself correctly everywhere except in the infrastructure that routes to it.
• Nothing answers reverse lookups, and with 256 addresses and two neighbours there is very little here beyond an office.

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

Announced prefixes

• 193.218.115.0/24

Upstream networks

• AS9085 SUPERMEDIA Sp.z.o.o.
• AS8308 PANSTWOWY INSTYTUT BADAWCZY

Adjacent networks

• AS9085 SUPERMEDIA Sp.z.o.o.
• AS8308 PANSTWOWY INSTYTUT BADAWCZY