Autonomous system
AS3662 HARNET Joint Universities Computer Centre Limited
Education APNIC Educational/Research
Summary
Joint Universities Computer Centre (JUCC) / HARNET
education research nren
The Hong Kong Academic and Research Network (HARNET), operated by the Joint Universities Computer Centre (JUCC) — the research and education backbone linking Hong Kong's government-funded tertiary institutions to each other and the global internet.
What it's used for
- Connecting the campus networks of Hong Kong's eight publicly funded universities and providing their shared upstream and research connectivity.
Notable
- An IP here is institutional — it belongs to a university on the HARNET backbone (campus, labs, research clusters) — classified
educationrather than commercial hosting.
Interesting
- JUCC was incorporated in 1970 as a cooperative of the computing centres of Hong Kong's tertiary institutions; HARNET runs on a multi-ring optical backbone with data centres at HKU and CUHK.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Hong Kong Internet Exchange | Hong Kong, China | 123.255.91.23 |
Transit providers
6 upstream, 9 downstream and 27 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 9 prefixes · 1.76K addresses IPv6 30 prefixes
| Country | Name | Prefixes |
|---|---|---|
| HK | Hong Kong | 39 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS3662- Registry name
- HARNET
- Registrant
- Joint Universities Computer Centre Limited
- Abuse contact
- hartech@jucc.edu.hk
- Registered
- 2008-09-04
- Last changed
- 2021-07-09
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Joint Universities Computer Centre
- Also known as
- Hong Kong Academic and Research Network
- Network type
- Educational/Research
- Scope
- Asia Pacific
- Traffic ratio
- Mostly Inbound
- Peering policy
- Selective
- IRR as-set
AS3662:AS-HARNET- Present at
- 1 exchanges
- Facilities
- 1 facilities
- Website
- http://www.jucc.edu.hk
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 9 with no ROA
- ROAs
- 0 authorising AS3662
- ASPA
- no ASPA record
- IRR
- 100% registered · 9 of 9 announcements
- Route objects
- 3,078 naming AS3662
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: 432 networks and 1,768 prefixes, as published 2026-10-12. 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