Autonomous system
AS9686 SKKUNET-AS SungKyunKwan University SKKU
Education APNIC
Summary
Sungkyunkwan University (SKKU)
education university research legacy
AS9686 (SKKUNET-AS) is held by Sungkyunkwan University (SKKU), a private research university in South Korea with a humanities and social sciences campus in Seoul and a Natural Sciences campus in Suwon. This is the university's own campus network.
What it's used for
RIS sees 8 IPv4 prefixes carrying 73,728 addresses, no IPv6, and 4 observed BGP neighbours. That is a large address holding for a single institution — roughly 72,000 usable addresses — but reached through only a handful of BGP adjacencies, which is exactly the university profile: a big legacy allocation supporting a whole campus estate, connected upward to the national research network and commercial carriers rather than peering widely.
The structure of the inventory reflects two eras of assignment. A pair of adjacent /17s (115.145.0.0/17 and 115.145.128.0/17) accounts for the great majority of the addresses and looks like a later, contiguous allocation, while a cluster of smaller blocks in 203.252.32.0–203.252.61.0 (a /20, a /21, two /22s and two /24s) is the older, piecemeal campus space. A network of that size carries the usual university population: faculty and staff desktops, lab and research systems, departmental servers, dormitory and wireless access for students, and the institution's public web and mail presence. One sampled address returned no PTRs.
Notable
- Address volume alone would put this AS in ISP territory by size, but the four-neighbour footprint marks it as an end-site campus network that consumes transit rather than provides it.
- The two /17s carrying most of the space mean a large share of the university's hosts sit in one contiguous range, which makes campus-wide geolocation of SKKU traffic unusually clean.
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 7 prefixes · 73.73K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| KR | Korea, Republic of | 7 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS9686- Registry name
- SKKUNET-AS-KR
- Abuse contact
- hostmaster@nic.or.kr
- Registered
- 1999-10-05
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 8 with no ROA
- ROAs
- 0 authorising AS9686
- ASPA
- no ASPA record
- IRR
- 100% registered · 8 of 8 announcements
- Route objects
- 32 naming AS9686
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