Autonomous system
AS9982 PAICHAI-AS PAICHAI UNIVERSITY
Education ARIN
Summary
Pai Chai University
legacy education 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.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS3786 | LG DACOM Corporation | 660 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 10 prefixes · 12.54K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| KR | Korea, Republic of | 10 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS9982- Registry name
- PAICHAI-AS-KR
- Abuse contact
- hostmaster@nic.or.kr
- Registered
- 2000-04-14
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 11 with no ROA
- ROAs
- 0 authorising AS9982
- ASPA
- no ASPA record
- IRR
- 73% registered · 8 of 11 announcements
- Route objects
- 13 naming AS9982
Reputation
Classification and threat
Education University, school or national research and education network.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,773 prefixes, as published 2026-10-13. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere