AS Name
ERX-CUHKNET
Org Name
The Chinese University of Hong Kong
Registry Region
Hong Kong
IPv4Prefixes

8

IPv6Prefixes

2

IPv4 NUMs

73,984

IPv6 NUMs(/64)

4,295,032,832

73,984 IPv4 Addresses
CIDR Description IP Num
103.49.160.0/22 CUHKNET Information Technology Services Centre 1024
123.255.64.0/21 CUHKNET Information Technology Services Centre 2048
137.189.0.0/24 CUHKNET imported inetnum object for CUHK 256
137.189.0.0/16 CUHKNET imported inetnum object for CUHK 65536
137.189.196.0/24 CUHKNET imported inetnum object for CUHK 256
175.159.224.0/22 CUHKNET The Chinese University of Hong Kong 1024
202.40.216.0/24 CULIB-HK CUHK Library 256
203.188.64.0/20 CUHK-HK country: HK The Chinese University of Hong Kong 4096
CIDR Description IP NUMs(prefix /64)
2001:ce0:3::/48 HARNET-IPV6-HK-20021224 Joint Universities Computer Centre Limited 65536
2405:3000::/32 CUHKNET-HK Chinese University of Hong Kong (The) 4294967296
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS64271 RIXCLOUD-INC - rixCloud, US United States 4,352 11,542,790,144 IPv4 IPv4 IPv6 IPv6
AS4635 HKIX-RS1 - The Hong Kong Internet Exchange Limited, HK Hong Kong 0 0 IPv4 IPv4 IPv6 IPv6
AS7660 APAN-JP - Asia Pacific Advanced Network - Japan, JP Japan 5,376 553,648,128 IPv4 IPv4 IPv6 IPv6
AS7713 telkomnet-as-ap - Telekomunikasi Indonesia (PT), ID Indonesia 3,387,392 12,888,178,688 IPv4 IPv4 IPv6 IPv6
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 22,784 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS39120 CONVERGENZE-AS - Convergenze S.p.A., IT Italy 92,672 4,294,967,296 IPv4 IPv4
AS54574 DMIT - DMIT Cloud Services, US United States 11,008 589,824 IPv4 IPv4
AS3662 HARNET - Joint Universities Computer Centre Limited, HK Hong Kong 1,792 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS58511 ANYCAST-GLOBAL-BACKBONE - ANYCAST HOLDINGS PTY LTD, AU Australia 7,936 4,294,967,296 IPv4 IPv4
AS131477 SHHJ-AS - Shanghai Huajuan Information Technology Co., Ltd., CN China 6,912 272,695,296 IPv4 IPv4 IPv6 IPv6
AS18106 VIEWQWEST-SG-AP - Viewqwest Pte Ltd, SG Singapore 51,456 12,884,901,888 IPv4 IPv4 IPv6 IPv6
AS24441 CITYLINK-AS-KH - CityLink Corporation, LTD, KH Cambodia 6,144 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS137207 JUCC-AS-AP - Joint Universities Computer Centre Limited, HK Hong Kong 1,024 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS38726 VTCDIGICOM-AS-VN - VTC DIGICOM, VN Viet Nam 20,480 4,294,967,296 IPv6 IPv6
AS4641 HKIX-AS-AP - The Hong Kong Internet Exchange Limited, HK Hong Kong 12,288 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS6939 HURRICANE - Hurricane Electric LLC, US United States 514,816 282,635,155,472,384 IPv4 IPv4 IPv6 IPv6
AS8220 COLT - COLT Technology Services Group Limited, GB United Kingdom 1,136,128 17,180,327,936 IPv4 IPv4
AS55720 GIGABIT-MY - Gigabit Hosting Sdn Bhd, MY Malaysia 80,896 17,179,869,184 IPv4 IPv4
AS3303 SWISSCOM - Swisscom (Schweiz) AG, CH Switzerland 3,607,552 161,330,495,488 IPv6 IPv6

Peers at this Exchange Point

Country/Region IX IPv4 IPv6 Port Speed Updated
Hong Kong HKIX - Hong Kong Internet Exchange 123.255.91.50 100 Mbps 2020-02-19 04:08:19

Private Peering Facilities

Country/Region Name City Website Updated
IP Address Domain NUMs Domains
123.255.64.1 1 vmg-notifier.keep.edu.hk
123.255.64.2 1 ns.keep.edu.hk
123.255.64.4 1 moodle.keep.edu.hk
123.255.64.6 3 ai4future.hk
123.255.64.7 6 catalog.keep.edu.hk
123.255.64.8 3 api.keep.edu.hk
123.255.64.10 3 edx.keep.edu.hk
123.255.64.15 1 events.keep.edu.hk
123.255.64.16 1 lrs.keep.edu.hk
123.255.64.18 1 account.keep.edu.hk
aut-num:        AS3661
as-name:        ERX-CUHKNET
descr:          The Chinese University of Hong Kong
descr:          ITSC, The Chinese University of Hong Kong
descr:          Shatin, N.T.,
country:        HK
org:            ORG-CUOH1-AP
admin-c:        NA17-AP
tech-c:         NT27-AP
remarks:        This aut-num object created as part of the ER-Transfer from ARIN
mnt-by:         APNIC-HM
mnt-routes:     MAINT-CUHKNET-HK
mnt-irt:        IRT-CUHKNET-HK
mnt-lower:      MAINT-CUHKNET-HK
mnt-lower:      MAINT-CUHKNET-HK
last-modified:  2019-06-09T22:38:29Z
source:         APNIC

irt:            IRT-CUHKNET-HK
address:        Information Technology Services Centre,
address:        The Chinese University of Hong Kong,
address:        Shatin, N.T.
address:        Hong Kong
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        NA17-AP
tech-c:         NT27-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2020-01-16
mnt-by:         MAINT-CUHKNET-HK
last-modified:  2020-01-16T06:26:13Z
source:         APNIC

organisation:   ORG-CUOH1-AP
org-name:       Chinese University of Hong Kong (The)
country:        HK
address:        Information Technology Service Centre
address:        G/F., Pi-Chiu Building
phone:          +852-3943-8848
fax-no:         +852-2603-5001
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2017-08-20T22:56:16Z
source:         APNIC

person:         Network Administration Contact
address:        Information Technology Services Centre,
address:        The Chinese University of Hong Kong,
address:        Shatin, N.T.
address:        Hong Kong
country:        HK
phone:          +852-3943-8830
fax-no:         +852-2603-5001
e-mail:         [email protected]
nic-hdl:        NA17-AP
notify:         [email protected]
mnt-by:         MAINT-CUHKNET-HK
last-modified:  2012-09-19T01:45:32Z
source:         APNIC

person:         Network Technical Contact
address:        Information Technology Services Centre,
address:        The Chinese University of Hong Kong,
address:        Shatin, N.T.
address:        Hong Kong
country:        HK
phone:          +852-3943-8830
fax-no:         +852-2603-5001
e-mail:         [email protected]
nic-hdl:        NT27-AP
notify:         [email protected]
mnt-by:         MAINT-CUHKNET-HK
last-modified:  2012-09-19T01:46:08Z
source:         APNIC