AS21324 — OSW

AS21324 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

The AS handle OSW is held by OSW Osrodek Studiów Wschodnich im. Marka Karpia w Warszawie.

What it's used for

• The space carries a single IPv4 prefix, 195.187.133.0/24, with the netname OSW-NET and registrant IRT-CERT-GOV-PL; NASK LIR.
• The inventory consists of 256 IPv4 addresses across 1 prefix, with 0 IPv6 prefixes announced.
• With 1 observed neighbour, the low address-to-neighbour ratio suggests a small, isolated site or internal corporate estate rather than a transit or large access network.

Notable

• The registrant IRT-CERT-GOV-PL; NASK LIR is a Polish government and national registry entity, which may indicate the address space is managed under national infrastructure or leased from a government body.
• The address inventory is minimal, consisting of a single /24 block, which fits the profile of a specific institutional site rather than a broad service provider.

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

Announced prefixes

• 195.187.133.0/24

Upstream networks

• AS8308 PANSTWOWY INSTYTUT BADAWCZY

Adjacent networks

• AS8308 PANSTWOWY INSTYTUT BADAWCZY