AS9323 DGUNET-AS DONGGUK University

AS9323 (DGUNET-AS) is held by Dongguk University, a private university in Seoul, South Korea. The ASN carries DGUnet, the university's campus network.

What it's used for

RIS sees 97 IPv4 prefixes carrying 24,832 addresses, no IPv6, and only 2 observed BGP neighbours. Two neighbours against twenty-five thousand addresses is the unmistakable signature of an end-site network: it consumes transit from a small number of Korean upstreams and originates nothing but its own space. There are no downstream customers and no peering footprint to speak of.

What stands out is the granularity. Almost every one of the 97 announcements is a /24, drawn from two ranges — the older 210.94.x space and the newer 223.195.x space — with no covering aggregates. Announcing a hundred individual /24s instead of a few aggregates is a per-subnet routing style: each building, department or lab network gets its own prefix in BGP. It inflates the prefix count without implying any fragmentation of ownership, and it is fairly common on Korean campus networks. The two distinct ranges most likely reflect the university's campuses and an allocation received at a later date.

Notable

• 97 prefixes for under 25,000 addresses gives an average announcement size of a /24, one of the most deaggregated profiles in this ASN range.
• No IPv6 is announced, so the campus is IPv4-only in the global routing table.