AS9982 PAICHAI-AS PAICHAI UNIVERSITY

AS9982 (PAICHAI-AS) is held by Pai Chai University (배재대학교), a private university in Seo-gu, Daejeon, South Korea. It traces its lineage to Pai Chai Hakdang, the school founded in 1885 by the American Methodist missionary Henry Appenzeller, which makes it one of the oldest modern educational institutions in Korea.

What it's used for

This is a campus network with an unusually fragmented allocation history. RIS sees 11 announced IPv4 prefixes totalling 12,544 addresses, no IPv6, and just 1 observed BGP neighbour. The core is 203.250.128.0/20 with a 58.150.248.0/21 beside it, and then a long tail of /22s, /23s and a /24 drawn from at least four unrelated pools (114.70.x, 203.247.x, 61.41.x, 118.129.x). That pattern is what happens when an institution keeps topping up its space over the years from whatever its provider or the registry had free, rather than being given one clean block.

Around 12,500 addresses is a comfortable size for a campus of Pai Chai's scale, covering departmental networks, dormitories, wireless and the university's own public services. The single BGP neighbour is the important role signal: one upstream, no peering, no customers. This network consumes transit, it does not sell it.

Notable

• Being single-homed means the AS number here buys portability of the address space rather than multi-homed resilience.
• No IPv6 is announced, so the campus is IPv4-only from the outside.