AS9691 KYUNGSUNG-AS KYUNGSUNG UNIVERSITY

AS9691 (KYUNGSUNG-AS) is held by Kyungsung University (경성대학교), a private university in Nam-gu, Busan, South Korea. This is the university's campus network.

What it's used for

RIS sees 16 IPv4 prefixes carrying 14,848 addresses, no IPv6, and 1 observed BGP neighbour. Fifteen thousand addresses behind a single upstream is a straightforward campus profile: enough space for staff and student devices, labs, departmental servers and dormitory or wireless access across a single-city campus, with one transit relationship — almost certainly into a Korean carrier or the national research network — and no peering ambitions.

The inventory is visibly the product of decades of piecemeal assignment rather than one clean allocation. It spans four unrelated ranges: 210.110.160.0/20 and 210.110.176.0/22, 202.30.112.0/21 with a couple of small 202.30.32.0 blocks, a cluster in 117.16.92.0–117.17.128.0, and single /24s in 203.230.x and 203.234.x. A university that has been on the internet since the early Korean academic-networking era accumulates exactly this: a block per era, per building programme or per network provider, never renumbered because renumbering a campus is more expensive than announcing sixteen prefixes.

Reverse DNS confirms the holder rather than merely the handle: a sampled address in 202.30.32.0/23 resolves to sarang.kyungsung.ac.kr, a named host under the university's own ac.kr academic domain.

Notable

• The single BGP neighbour means this network does not multihome; its internet reachability rests on one upstream relationship.
• Despite the varied address ranges, everything traces back to one institution — the scatter is legacy assignment history, not a mixed-tenant estate.