Autonomous system
AS9275 KASI-AS-KR Korea Astronomy Observatory
Education ARIN
Summary
Korea Astronomy and Space Science Institute (KASI)
research education government legacy
AS9275 (KASI-AS-KR) is held by the Korea Astronomy and Space Science Institute, South Korea's government-funded national research institute for astronomy and space science, headquartered in the Daedeok Science Town in Daejeon. The registry name "Korea Astronomy Observatory" reflects the institute's earlier title; the organisation behind it is KASI.
What it's used for
This is a small research-institute network and it looks like one. AS9275 announces seven IPv4 prefixes, every one of them a /24, totalling just 1,792 addresses, with no IPv6 announced and only two observed BGP neighbours. Two upstreams and under 2,000 addresses puts this firmly in end-site territory: there is no transit role, no hosting business and no eyeball base here. What is interesting is the spread of those seven /24s — they come from several unrelated blocks (210.110.233.0/24 and 210.110.234.0/24, 203.253.237.0/24, 210.98.27.0/24, 210.219.33.0/24, and two newer APNIC /24s at 103.8.230.0 and 103.43.64.0). A handful of individually-routed /24s rather than one contiguous block is what accumulates when an institute has picked up address space at different times for different facilities.
Notable
- KASI's work spans optical, radio and space astronomy, and it participates in large international projects; as of 2024 it sits under the Korea AeroSpace Administration.
- The network exists to serve the institute's staff, computing and instrument sites, so traffic from it should be read as scientific and institutional rather than commercial.
- Two of the seven prefixes are from the modern
103.0.0.0/8APNIC range, showing the institute was still acquiring space well after the legacy allocations.
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 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 7 prefixes · 1.79K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| KR | Korea, Republic of | 7 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS9275- Registry name
- KASI-AS-KR-KR
- Abuse contact
- hostmaster@nic.or.kr
- Registered
- 1998-01-22
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 7 with no ROA
- ROAs
- 0 authorising AS9275
- ASPA
- no ASPA record
- IRR
- 100% registered · 7 of 7 announcements
- Route objects
- 8 naming AS9275
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 1,781 prefixes, as published 2026-10-16. 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