AS13303 — UNNI-AS

AS13303 announces 1 IPv4 prefixes covering 65,536 addresses and 0 IPv6 prefixes.

About this network

A whole /16 held by one university, with no party named on the registration at all.

What it's used for

• The network of a Serbian university. 65,536 addresses in the single prefix 160.99.0.0/16, one observed BGP neighbour, and no IPv6 announced.

Notable

• The netname is UNINET-NIS.
• The registry lookup for the block succeeded and named nobody as registrant, which is different from a failed lookup.
• First observed in the routing archive in December 2002.

Interesting

• Universities collected class B allocations in the era when address space was handed out by institution rather than by headcount, and a single /16 for one campus is the result. It has never been split, so the whole thing travels as one route.
• A record that names no organisation is unusual and hard to act on. The block resolves to a netname and a country and stops there, which means anyone tracing traffic from it has to work out who to contact from the netname alone.
• No IPv6 on a network with sixty-five thousand addresses is a choice that costs nothing until it does. There is enough room here that the pressure other networks feel has never arrived.

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

Announced prefixes

• 160.99.0.0/16

Upstream networks

• AS13092 AMRES

Adjacent networks

• AS13092 AMRES

Internet exchanges

• Serbian Open Exchange — Belgrade, Serbia