AS12774 — PWN-ASN

AS12774 announces 2 IPv4 prefixes covering 512 addresses and 0 IPv6 prefixes.

About this network

Two /24s from different ranges, held by a Polish academic publisher.

What it's used for

• Corporate networking for a scientific and educational publisher. 512 addresses in two IPv4 prefixes, two observed BGP neighbours, and no IPv6 announced.

Notable

• The inventory is 193.105.45.0/24 and 195.230.120.0/24.
• Both carry the netname PWN-NET-PL, registered to Wydawnictwo Naukowe PWN SA.
• One sampled address answered, as mc2.pwn.net.pl.
• First observed in the routing archive in April 2008.

Interesting

• A publisher with its own AS number is a company that decided its internet presence was worth owning outright. Two /24s from unrelated ranges, announced together under two upstreams, buys the ability to change provider without renumbering — which for an organisation whose services are cited by address in library systems and institutional allow-lists is worth more than the addresses themselves.
• The two blocks share a netname but not a range, which means they were assigned at different times and filed under the same label. Netnames identify the holder's network, not the allocation, so they are the thread that ties otherwise unrelated space together.
• mc2 is a host name of the kind that only means something to the people who set it. Reverse DNS on a corporate network is written for operators, not for the public, and short cryptic names are the norm rather than the exception.

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

Announced prefixes

• 193.105.45.0/24
• 195.230.120.0/24

Upstream networks

• AS5617 Orange Polska Spolka Akcyjna
• AS24723 Atman Sp. z o.o.

Adjacent networks

• AS5617 Orange Polska Spolka Akcyjna
• AS24723 Atman Sp. z o.o.