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AS3662 Joint Universities Computer Centre Limited

HARNET - Joint Universities Computer Centre Limited · registered in Hong Kong

IPv4 addresses1,7609 prefixes · <0.001% of announced IPv4
Rank in Hong Kong#343largest network in HK by IPv4 space, of 735 · <0.01% of HK
Rank worldwide#25,639of 79,396 networks with IPv4
IPv665,272 x /4830 prefixes
CountryHong Kong779 ASNs registered there
Open AS3662 in ASN lookup Look up an IP in this network (175.159.254.1) All networks in Hong Kong

IPv4 prefixes

All 9 prefixes, in address order.

  • 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

IPv6 prefixes

All 30 prefixes.

  • 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

Other ASNs named Joint Universities Computer Centre Limited

1 other network uses the same organisation name; together with AS3662 they announce 2,784 IPv4 addresses.

ASNNameIPv4 addresses
AS137207JUCC-AS-AP - Joint Universities Computer Centre Limited HK1,024

Similar-sized networks in Hong Kong

ASNNameIPv4 addresses
AS137927#340 AUTOMATED-HK - Automated System (HK) Ltd.1,792
AS137969#341 HKBIL-AS-AP - HONG KONG BRIDGE INFO-TECH LIMITED1,792
AS205512#342 Zhengxing HONG KONG ZHENG XING TECHNOLOGY LIMITED1,792
AS55350#344 VSCGT-HK - Virtual Switching Consultancy Limited (C/O VXRoutes Ltd)1,536
AS134829#345 PPIP-AS-AP - PPIP Associated Communication Limited1,536
AS137816#346 CLOUDNET-AS-AP - Cloud Net Technologies Limited1,536

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources