137.189.0.0/16

AS3661  ·  The Chinese University of Hong Kong

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Summary

Country Hong Kong
Domain cuhk.edu.hk
ASN AS3661
Registry APNIC
ID CUHKNET

WHOIS Details

inetnum:        137.189.0.0 - 137.189.255.255
netname:        CUHKNET
descr:          The Chinese University of Hong Kong
descr:          Information Technology Services Centre
country:        HK
org:            ORG-CUOH1-AP
admin-c:        NA17-AP
tech-c:         NT27-AP
status:         ALLOCATED PORTABLE
abuse-c:        AC2019-AP
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CUHKNET-HK
mnt-routes:     MAINT-CUHKNET-HK
mnt-irt:        IRT-CUHKNET-HK
last-modified:  2022-12-05T02:41:49Z
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:         noc-admin@cuhk.edu.hk
abuse-mailbox:  noc-admin@cuhk.edu.hk
admin-c:        NA17-AP
tech-c:         NT27-AP
auth:           # Filtered
remarks:        noc-admin@cuhk.edu.hk was validated on 2025-11-12
mnt-by:         MAINT-CUHKNET-HK
last-modified:  2025-11-18T00:26:31Z
source:         APNIC

organisation:   ORG-CUOH1-AP
org-name:       The Chinese University of Hong Kong
org-type:       LIR
country:        HK
address:        Information Technology Service Centre
address:        G/F., Pi-Chiu Building
phone:          +852-3943-8848
fax-no:         +852-2603-5001
e-mail:         noc-admin@cuhk.edu.hk
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:42Z
source:         APNIC

role:           ABUSE CUHKNETHK
country:        ZZ
address:        Information Technology Services Centre,
address:        The Chinese University of Hong Kong,
address:        Shatin, N.T.
address:        Hong Kong
phone:          +000000000
e-mail:         noc-admin@cuhk.edu.hk
admin-c:        NA17-AP
tech-c:         NT27-AP
nic-hdl:        AC2019-AP
remarks:        Generated from irt object IRT-CUHKNET-HK
remarks:        noc-admin@cuhk.edu.hk was validated on 2025-11-12
abuse-mailbox:  noc-admin@cuhk.edu.hk
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-12T01:03:41Z
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:         noc-admin@cuhk.edu.hk
nic-hdl:        NA17-AP
notify:         noc-admin@cuhk.edu.hk
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:         noc-tech@cuhk.edu.hk
nic-hdl:        NT27-AP
notify:         noc-tech@cuhk.edu.hk
mnt-by:         MAINT-CUHKNET-HK
last-modified:  2012-09-19T01:46:08Z
source:         APNIC

route:          137.189.0.0/16
origin:         AS3661
descr:          Chinese University of Hong Kong (The) Information Technology Service Centre G/F., Pi-Chiu Building CUHK
mnt-by:         MAINT-CUHKNET-HK
last-modified:  2022-11-04T09:24:25Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 137.0.0.0/8

Range ASN Company Num of IPs
137.176.0.0/13 AS11003 The Procter and Gamble Company 524,288
137.113.0.0/16 AS19464 Washington & Lee University 65,536
137.120.0.0/16 AS1103 P.O.Box 616, 6200 MD, Maastricht, The Netherlands 65,536
137.94.0.0/16 AS19737 Royal Military College of Canada 65,536
137.51.0.0/16 AS1906 Northrop Grumman Corp. 65,536
137.28.0.0/16 AS19184 University of Wisconsin - Eau Claire 65,536
137.202.0.0/16 AS13541 Siemens Industry Software Inc. 65,536
137.74.0.0/16 AS16276 OVH SAS 65,536
137.88.0.0/16 AS14977 Wyoming Higher Education Computer Network 65,536
137.86.0.0/16 AS14977 Wyoming Higher Education Computer Network 65,536
137.194.0.0/16 AS1712 Télécom Paris 65,536
137.40.0.0/16 AS18071 Panasonic Information Systems Co., Ltd 65,536
137.16.0.0/16 AS16509 Amazon.com, Inc. 65,536
137.160.0.0/16 AS16509 Amazon.com, Inc. 65,536
137.61.0.0/16 AS15991 IT/GITS 65,536
137.96.0.0/16 AS1234 Fortum Oyj 65,536
137.45.0.0/16 AS13783 Radford University 65,536
137.15.0.0/16 AS14836 City of Toronto 65,536
137.228.0.0/16 AS127 National Aeronautics and Space Administration 65,536
137.192.0.0/16 AS14929 Inteliquent, inc. 65,536
137.89.0.0/16 AS14977 Wyoming Higher Education Computer Network 65,536
137.87.0.0/16 AS14977 Wyoming Higher Education Computer Network 65,536
137.114.0.0/16 AS16509 Amazon Technologies Inc. 65,536
137.58.0.0/16 AS158 Telefonaktiebolaget LM Ericsson 65,536
137.216.0.0/16 AS11607 South Dakota State University 65,536
137.19.0.0/16 AS16509 Amazon.com, Inc. 65,536
137.207.0.0/16 AS11700 University of Windsor 65,536
137.154.0.0/16 AS10079 University of Western Sydney 65,536
137.224.0.0/16 AS1103 Wageningen University & Research 65,536
137.192.0.0/16 AS1347 Inteliquent, inc. 65,536
137.208.0.0/16 AS1776 Welthandelsplatz 1 65,536
137.147.0.0/16 AS1221 Telstra Limited 65,536
137.185.0.0/16 AS11003 The Procter and Gamble Company 65,536
137.188.0.0/16 AS12079 Verizon Wireless 65,536
137.124.0.0/16 AS11351 State University of New York College of Technology at Delhi 65,536
137.204.0.0/16 AS137 UNI-Bologna 65,536
137.99.0.0/16 AS13796 University of Connecticut 65,536
137.230.0.0/16 AS14381 Caterpillar, Inc. 65,536
137.124.0.0/16 AS11351 State University of New York College of Technology at Delhi 65,536
137.101.0.0/16 AS12430 ORG-AMS1-RIPE 65,536
137.56.0.0/16 AS1103 Universiteit van Tilburg 65,536
137.79.0.0/16 AS127 National Aeronautics and Space Administration 65,536
137.36.0.0/16 AS11351 The State University of New York College of Agriculture and Technology at Cobleskill 65,536
137.78.0.0/16 AS127 National Aeronautics and Space Administration 65,536
137.90.0.0/16 AS14977 Wyoming Higher Education Computer Network 65,536
137.85.0.0/16 AS14977 Wyoming Higher Education Computer Network 65,536
137.18.0.0/16 AS1999 U.S. House of Representatives 65,536
137.53.0.0/16 AS11995 Oregon Health & Science University 65,536
137.17.0.0/16 AS1136 National Aerospace Laboratory 65,536
137.205.0.0/16 AS201773 University of Warwick 65,536

Hosted domains

There are 55 domain names hosted across 41 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
137.189.97.18 authpaper.net 3
137.189.76.60 ibce.hk 3
137.189.145.111 olc-cuhk.org 3
137.189.89.51 veriguide.com 3
137.189.41.180 yyan.cf 2
137.189.172.9 cschinese.com 2
137.189.99.7 authpaper.org 2
137.189.91.192 irwinking.com 2
137.189.43.96 seedtec-farmease.com 2
137.189.94.156 miltonchan.wiki 2
137.189.34.1 iscslp2012.org 2
137.189.64.147 ophthalhub.com 2
137.189.43.208 wildsoydb.org 1
137.189.88.236 misc-lab.com 1
137.189.160.197 cuscs.hk 1
137.189.85.157 cslds.org 1
137.189.185.140 ibsomed.com.hk 1
137.189.160.160 cuscshd.hk 1
137.189.64.105 beautygenmedia.com 1
137.189.85.196 asiapacificbabylabs.org 1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity

Pingable IPs

1,427 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
137.189.165.253 AS3661 The Chinese University of Hong Kong 1.44ms from Hong Kong, HK
137.189.241.252 AS3661 The Chinese University of Hong Kong 1.50ms from Hong Kong, HK
137.189.39.2 AS3661 The Chinese University of Hong Kong 8.10ms from Hong Kong, HK
137.189.162.145 AS3661 The Chinese University of Hong Kong 2.75ms from Hong Kong, HK
137.189.192.49 AS3661 The Chinese University of Hong Kong 1.10ms from Hong Kong, HK
137.189.184.247 AS3661 The Chinese University of Hong Kong 1.48ms from Hong Kong, HK
137.189.107.251 AS3661 The Chinese University of Hong Kong 1.54ms from Hong Kong, HK
137.189.64.132 AS3661 The Chinese University of Hong Kong 2.78ms from Hong Kong, HK
137.189.40.30 AS3661 The Chinese University of Hong Kong 1.06ms from Hong Kong, HK
137.189.144.253 AS3661 The Chinese University of Hong Kong 1.86ms from Hong Kong, HK
137.189.97.89 AS3661 The Chinese University of Hong Kong 1.65ms from Hong Kong, HK
137.189.175.252 AS3661 The Chinese University of Hong Kong 1.35ms from Hong Kong, HK
137.189.26.254 AS3661 The Chinese University of Hong Kong 1.74ms from Hong Kong, HK
137.189.134.253 AS3661 The Chinese University of Hong Kong 2.02ms from Hong Kong, HK
137.189.142.253 AS3661 The Chinese University of Hong Kong 1.65ms from Hong Kong, HK
137.189.135.253 AS3661 The Chinese University of Hong Kong 1.91ms from Hong Kong, HK
137.189.87.253 AS3661 The Chinese University of Hong Kong 1.40ms from Hong Kong, HK
137.189.79.252 AS3661 The Chinese University of Hong Kong 1.29ms from Hong Kong, HK
137.189.133.253 AS3661 The Chinese University of Hong Kong 1.80ms from Hong Kong, HK
137.189.85.196 AS3661 The Chinese University of Hong Kong 2.35ms from Hong Kong, HK
137.189.91.252 AS3661 The Chinese University of Hong Kong 1.19ms from Hong Kong, HK
137.189.127.253 AS3661 The Chinese University of Hong Kong 1.32ms from Hong Kong, HK
137.189.65.253 AS3661 The Chinese University of Hong Kong 1.44ms from Hong Kong, HK
137.189.15.252 AS3661 The Chinese University of Hong Kong 1.52ms from Hong Kong, HK
137.189.43.253 AS3661 The Chinese University of Hong Kong 1.64ms from Hong Kong, HK

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
139.59.20.144 AS14061 DigitalOcean, LLC 0.25ms from Bengaluru, IN
199.213.38.32 AS393952 Service Alberta 7.15ms from Calgary, CA
189.176.182.160 AS8151 UNINET 14.38ms from Cancún, MX
99.132.233.128 AS7018 AT&T Enterprises, LLC 15.62ms from Chicago, US
84.152.28.128 AS3320 Deutsche Telekom AG 5.53ms from Duesseldorf, DE
99.6.28.144 AS7018 AT&T Enterprises, LLC 3.44ms from Houston, US
39.117.139.192 AS9318 SK Broadband Co Ltd 1.63ms from Incheon, KR
92.17.183.80 AS13285 TalkTalk Communications Limited 3.96ms from London, GB
52.147.62.16 AS8075 Microsoft Corporation 0.50ms from Melbourne, AU
72.69.130.96 AS701 Verizon Business 2.67ms from New York City, US
73.53.213.208 AS7922 Comcast Cable Communications, LLC 9.76ms from Orlando, US
208.28.35.16 AS174 Cogent Communications, LLC 1.60ms from Phoenix, US
195.39.46.112 AS13036 T-Mobile Czech Republic a.s. 0.45ms from Prague, CZ
27.198.171.176 AS4837 CHINA UNICOM China169 Backbone 6.88ms from Qingdao, CN
95.196.173.48 AS3301 Telia Company AB 17.48ms from Stockholm, SE
193.235.239.80 AS51747 Internet Vikings International AB 0.92ms from Stockholm, SE
108.210.168.16 AS7018 AT&T Enterprises, LLC 11.80ms from Atlanta, US
181.47.150.224 AS27747 Telecentro S.A. 4.13ms from Buenos Aires, AR
208.103.53.208 AS22110 Ligtel Communications, Inc. 4.36ms from Chicago, US
97.247.146.192 AS6167 Verizon Business 10.56ms from Dallas, US
97.171.188.176 AS6167 Verizon Business 19.61ms from Denver, US
80.133.5.64 AS3320 Deutsche Telekom AG 8.30ms from Frankfurt am Main, DE
111.95.187.144 AS23700 Linknet-Fastnet ASN 4.96ms from Jakarta, ID
89.81.55.192 AS5410 Bouygues Telecom SA 5.91ms from Marseille, FR
35.211.94.192 AS15169 Google LLC 0.13ms from Moncks Corner, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -m7 137.189.198.193
traceroute to 137.189.198.193 (137.189.198.193): 7 hops max, 52 byte packets
3 *
4 [AS6939] 184.105.81.140 10.667 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Sandefjord, NO
On

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