AS3662 — HARNET Joint Universities Computer Centre Limited

Network type: education

AS3662 announces 9 IPv4 prefixes covering 1,760 addresses and 30 IPv6 prefixes.

About this network

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 education rather 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.

Announced prefixes

• 175.159.254.0/24
• 192.245.196.0/24
• 202.40.218.0/24
• 202.40.221.0/24
• 203.188.112.0/25
• 203.188.112.160/27
• 203.188.112.192/26
• 203.188.117.0/24
• 203.188.118.0/24
• 2001:ce0::/47
• 2001:ce0:9::/48
• 2001:ce0:a::/47
• 2001:ce0:c::/46
• 2001:ce0:10::/44
• 2001:ce0:20::/43
• 2001:ce0:40::/42
• 2001:ce0:80::/41
• 2001:ce0:100::/40
• 2001:ce0:200::/39
• 2001:ce0:400::/38
• 2001:ce0:800::/37
• 2001:ce0:1000::/36
• 2001:ce0:2000::/39
• 2001:ce0:2300::/40
• 2001:ce0:2400::/38
• 2001:ce0:2800::/40
• 2001:ce0:2901::/48
• 2001:ce0:2902::/47
• 2001:ce0:2904::/46
• 2001:ce0:2908::/45
• 2001:ce0:2910::/44
• 2001:ce0:2920::/43
• 2001:ce0:2940::/42
• 2001:ce0:2980::/41
• 2001:ce0:2a00::/39
• 2001:ce0:2c00::/38
• 2001:ce0:3000::/36
• 2001:ce0:4000::/34
• 2001:ce0:8000::/33

Upstream networks

• AS17824 Pacific One Net Limited AS number
• AS6939 Hurricane Electric LLC
• AS137207 Joint Universities Computer Centre Limited
• AS4635 Hong Kong Internet Exchange--Route Server 1
• AS24482 SG.GS
• AS8359 MTS PJSC

Downstream networks

• AS7650 The Education University of Hong Kong
• AS7651 Lingnan University
• AS3363 Hong Kong University of Science and Technology
• AS4158 City University of Hong Kong
• AS4528 The University of Hong Kong
• AS4605 Hong Kong Baptist University
• AS4616 The Hong Kong Polytechnic University
• AS3661 The Chinese University of Hong Kong
• AS17764 Hong Kong Metropolitan University

Adjacent networks

• AS17824 Pacific One Net Limited AS number
• AS7650 The Education University of Hong Kong
• AS6939 Hurricane Electric LLC
• AS7651 Lingnan University
• AS3363 Hong Kong University of Science and Technology
• AS4158 City University of Hong Kong
• AS4528 The University of Hong Kong
• AS4605 Hong Kong Baptist University
• AS4616 The Hong Kong Polytechnic University
• AS3661 The Chinese University of Hong Kong
• AS4635 Hong Kong Internet Exchange--Route Server 1
• AS137207 Joint Universities Computer Centre Limited
• AS17764 Hong Kong Metropolitan University
• AS24482 SG.GS
• AS8359 MTS PJSC
• AS9930 TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia

Internet exchanges

• Hong Kong Internet Exchange — Hong Kong, China