Autonomous system
AS9769 SEJONG-AS-KR - Sejong University
Education RIPE
Summary
Sejong University
education university legacy
AS9769 (SEJONG-AS) is held by Sejong University, a private university in Gwangjin-gu, Seoul. This is the campus network: it carries the university's own students, staff, labs and public-facing services, and nothing else.
What it's used for
RIS shows 28,160 IPv4 addresses across 15 prefixes. The footprint is anchored on a 223.195.0.0/18 with a /20 beside it, plus a pair of /21s and several /22s and /23s in 210.107.x, and a small 203.250.148.0/23 group. Nearly 30,000 addresses is a large but entirely ordinary holding for a Korean university, which reflects when the space was assigned rather than any present-day need: campuses in this ASN range were allocated generously in the 1990s, long before NAT and RFC 1918 addressing became the norm for lab and dormitory subnets.
The decisive signal is that all of it hangs off one observed BGP neighbour. A single upstream on 28k addresses rules out any transit or wholesale role — thousands of neighbours would be the tell for that. In Korea the research-and-education backbone (KREONET/KOREN) is the usual single upstream for a campus AS, and a university's ASN typically exists so it can hold portable space and announce it consistently rather than to multi-home. No IPv6 is announced from this ASN.
Notable
- Sejong is a private institution, not to be confused with Sejong City or the state bodies that carry the same name. The handle is not evidence of a government network.
- The more-specific prefixes inside the
/18suggest internal routing policy or historical sub-allocations to departments, not separate organisations.
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 | 899 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-04, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 23 prefixes · 28.16K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| KR | Korea, Republic of | 23 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS9769- Registry name
- SEJONG-AS-KR
- Abuse contact
- hostmaster@nic.or.kr
- Registered
- 1999-12-10
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 17 with no ROA
- ROAs
- 0 authorising AS9769
- ASPA
- no ASPA record
- IRR
- 59% registered · 10 of 17 announcements
- Route objects
- 25 naming AS9769
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: 453 networks and 1,853 prefixes, as published 2026-11-05. 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