Autonomous system
AS10052 KNU-AS Kyungpook National University
Education ARIN
Summary
Kyungpook National University
KNU-AS-KR is Kyungpook National University, one of South Korea's national flagship universities, based in Daegu. AS10052 carries the campus network for its faculties, halls of residence and research institutes.
What it's used for
General campus connectivity: teaching, administration, research computing and student accommodation. The AS announces 33 IPv4 prefixes totalling 65,536 addresses plus one IPv6 /48, and the shape of that table is the giveaway. The block is a single legacy 155.230.0.0/16 announced as a whole and then re-announced in dozens of more-specific /22s and /24s. That is not a provider carving up space for customers; it is a campus deaggregating its own /16 so that individual buildings, departments and subnets can be traffic-engineered across more than one upstream. The sampled reverse DNS supports it directly: 155.230.20.5 resolves to ns-rtr1.knu.ac.kr, a router-and-nameserver name in the university's own .ac.kr zone.
Notable
An education network, and the evidence settles it in both directions. 65,536 addresses against just five observed BGP neighbours rules out any wholesale role: a transit carrier holding a /16 would peer with hundreds of ASes. Five is what a university looks like when it multihomes to the national research network and a commercial ISP or two.
Interesting
A contiguous /16 is a relic of an early allocation, from the era when a national university could ask for 65,000 addresses and simply be given them. Newer Korean campuses in this range hold scattered /22s and /24s instead — compare AS10071.
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.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 30 prefixes · 65.54K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| KR | Korea, Republic of | 31 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS10052- Registry name
- KNU-AS-KR
- Abuse contact
- hostmaster@nic.or.kr
- Registered
- 2000-06-16
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 38 with no ROA
- ROAs
- 0 authorising AS10052
- ASPA
- no ASPA record
- IRR
- 97% registered · 37 of 38 announcements
- Route objects
- 18 naming AS10052
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