AS9708 PKNU-AS Pukyong National University

AS9708 (pknu-as) is held by Pukyong National University, a national university in Busan, South Korea. It is the university's campus network, connected to the rest of the internet through a single upstream.

What it's used for

The shape is a campus network of respectable size. RIS sees 28 IPv4 prefixes carrying 28,160 addresses, no IPv6, and 1 observed neighbour. A single upstream rules out any transit or provider role, and 28,000 addresses is the sort of estate a national university accumulates to give routable space to faculties, labs, administrative systems, dormitories and student wireless. The prefix list is unusually heterogeneous for a university: alongside the expected academic-range blocks (210.119.0.0/20 and its /22 pieces, 210.125.112.0/20, 210.107.208.0/22, 203.250.120.0/21) sit /20s and /24s out of Korean consumer-provider space such as 14.44.112.0/20, 112.162.6-7, 121.174.96.0/24 and 220.66.243.0/24. That mix says the university has picked up address space from several sources over a long period rather than sitting on one clean allocation.

Notable

• Pukyong National University was formed by the merger of two Busan institutions and retains a strong fisheries, marine science and engineering orientation.
• Korean university networks of this era commonly connect through the national research network rather than through commercial transit, which fits the single observed neighbour.

Interesting

Two sampled addresses in 58.103.160.0/21 return the PTR localhost. That is a stock misconfiguration: a reverse zone left with a default record instead of real host names, and it tends to persist for years because nothing user-visible breaks.