1. All IP Ranges
  2. 203.0.0.0/8
  3. 203.188.0.0/16
  4. AS3661  | 203.188.64.0/20

203.188.64.0/20

AS3661  ·  The Chinese University of Hong Kong

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Summary

Country Hong Kong
Domain cuhk.edu.hk
ASN AS3661
Registry APNIC
ID CUHK-HK

WHOIS Details

inetnum:        203.188.64.0 - 203.188.79.255
netname:        CUHK-HK
country:        HK
descr:          The Chinese University of Hong Kong
admin-c:        NA17-AP
tech-c:         NT27-AP
status:         ASSIGNED NON-PORTABLE
changed:        cwy@cc.hku.hk 20040510
mnt-by:         MAINT-JUCC-AP
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
changed:        noc-admin@cuhk.edu.hk 20000816
changed:        hm-changed@apnic.net 20040301
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
changed:        noc-tech@cuhk.edu.hk 20000816
changed:        hm-changed@apnic.net 20040301
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.188.0.0/16

Range ASN Company Num of IPs
203.188.0.0/18 AS7693 KSC Internet Commercial Co., Ltd. 16,384
203.188.128.0/19 AS4826 VOCUS PTY LTD 8,192
203.188.16.0/20 AS55760 ********************************************** 4,096
203.188.240.0/20 AS9832 Information Services Network 4,096
203.188.48.0/20 AS55760 ********************************************** 4,096
203.188.232.0/21 AS38182 Extreme Broadband Sdn. Bhd., 2,048
203.188.224.0/21 AS38794 United Information Highway Co.,Ltd. 2,048
203.188.208.0/21 AS24259 kanuma cable television Corporation 2,048
203.188.104.0/21 AS3363 Hong Kong University of Science and Technology 2,048
203.188.200.0/22 AS24506 Yahoo! Taiwan, Teipei, Taiwan 1,024
203.188.184.0/22 AS5511 Orange S.A. 1,024
203.188.124.0/22 AS7651 Lingnan University 1,024
203.188.176.0/22 AS5511 Orange S.A. 1,024
203.188.92.0/23 AS7650 The Education University of Hong Kong 512
203.188.94.0/23 AS7650 The Education University of Hong Kong 512
203.188.183.0/24 AS3257 VPN Consumer Paris, France 256
203.188.112.0/24 AS3662 HARNET Backbone 256
203.188.117.0/24 AS3662 HARNET Backbone 256
203.188.118.0/24 AS3662 HARNET Backbone 256
203.188.239.0/24 AS38182 Extreme Broadband 256
203.188.188.0/24 AS5511 Orange S.A. 256
203.188.160.0/24 AS55410 Vodafone Idea Ltd 256
203.188.161.0/24 AS55410 Vodafone Idea Ltd 256
203.188.162.0/24 AS55410 Vodafone Idea Ltd 256
203.188.163.0/24 AS55410 Vodafone Idea Ltd 256
203.188.165.0/24 AS62240 VPN Consumer Atlanta, United States of America 256
203.188.181.0/24 AS62240 VPN Consumer Frankfurt, Germany 256
203.188.240.0/24 AS9832 Loopback Address 256
203.188.241.0/24 AS9832 ISN Khulna POP 256
203.188.242.0/24 AS9832 Corporate Broadband 256
203.188.243.0/24 AS9832 Home Broadband 256
203.188.244.0/24 AS9832 Home Broadband 256
203.188.245.0/24 AS9832 Home Broadband 256
203.188.246.0/24 AS9832 Corporate Broadband 256
203.188.248.0/24 AS9832 ISN Narayangonj POP 256
203.188.249.0/24 AS9832 ISN Narayangonj POP 256
203.188.250.0/24 AS9832 Corporate Broadband 256
203.188.251.0/24 AS9832 ISN Uttara POP 256
203.188.252.0/24 AS9832 ISN Network 256
203.188.253.0/24 AS9832 Dial-Up Service 256
203.188.254.0/24 AS9832 ISN Gulshan POP 256
203.188.175.0/24 AS137409 VPN Consumer Dallas, United States of America 256
203.188.255.0/24 AS9832 ISN Gulshan POP 256
203.188.189.0/24 AS137409 VPN Consumer Singapore, Republic of Singapore 256
203.188.190.0/24 AS137409 VPN Consumer Singapore, Republic of Singapore 256
203.188.191.0/24 AS137409 VPN Consumer Singapore, Republic of Singapore 256
203.188.171.0/24 AS19318 1337 Services GmbH 256
203.188.168.0/24 AS206092 VPN Consumer Sao Paulo, Brazil 256
203.188.166.0/24 AS209155 Onehostplanet s.r.o. 256

Hosted domains

There are no domains currently hosted on this ASN.

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
Read more

Pingable IPs

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

IP Address ASN Details
203.188.64.38 AS3661 The Chinese University of Hong Kong 1.17ms from Hong Kong, HK
203.188.79.251 AS3661 The Chinese University of Hong Kong 1.27ms 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
79.107.193.196 AS25472 Nova Telecommunications & Media Single Member S.A 9.16ms from Athens, GR
188.25.105.132 AS8708 DIGI ROMANIA S.A. 0.86ms from Bucharest, RO
200.180.87.68 AS8167 V tal 6.46ms from Curitiba, BR
148.62.42.68 AS33070 Rackspace Hosting 1.04ms from Dallas, US
162.197.126.180 AS7018 AT&T Enterprises, LLC 2.74ms from Dallas, US
216.87.84.228 AS13649 Flexential Colorado Corp. 0.92ms from Denver, US
80.147.238.20 AS3320 Deutsche Telekom AG 3.58ms from Frankfurt am Main, DE
14.226.233.212 AS45899 VNPT Corp 1.48ms from Ho Chi Minh City, VN
95.0.142.148 AS9121 Turk Telekomunikasyon Anonim Sirketi 7.01ms from Istanbul, TR
34.96.98.132 AS396982 Google LLC 0.07ms from Melbourne, AU
126.49.123.52 AS17676 SoftBank Corp. 10.09ms from Osaka, JP
189.45.35.116 AS25933 Vogel Soluções em Telecom e Informática S/A 17.07ms from Porto Alegre, BR
72.153.216.164 AS8075 Microsoft Corporation 0.61ms from San Jose, US
187.142.220.196 AS8151 UNINET 6.85ms from Santiago de Queretaro, MX
111.231.164.244 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.46ms from Shanghai, CN
126.40.83.116 AS17676 SoftBank Corp. 6.71ms from Tokyo, JP
118.1.214.212 AS4713 NTT DOCOMO BUSINESS,Inc. 3.37ms from Tokyo, JP
24.170.225.116 AS14291 Antietam Broadband 5.17ms from Ashburn, US
52.43.34.36 AS16509 Amazon.com, Inc. 0.17ms from Boardman, US
176.102.106.196 AS57547 WIRIX, s.r.o. 5.94ms from Bratislava, SK
117.161.25.52 AS9808 China Mobile Communications Group Co., Ltd. 1.60ms from Hohhot, CN
223.231.211.20 AS45609 Bharti Airtel Ltd. AS for GPRS Service 6.67ms from Kolkata, IN
93.96.76.20 AS5607 Sky UK Limited 3.93ms from London, GB
147.227.17.244 AS668 United States Department of Defense (DoD) 1.65ms from Los Angeles, US
213.4.206.132 AS3352 TELEFONICA DE ESPANA S.A.U. 4.71ms from Madrid, ES

Traceroute

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

$
traceroute -a -n -q1 -m16 203.188.72.172
traceroute to 203.188.72.172 (203.188.72.172): 16 hops max, 52 byte packets
2 *
3 *
4 *
5 *
6 *
7 *
8 *
9 *
10 [AS6939] 184.105.81.142 62.431 ms
11 *
12 [] 123.255.91.50 207.731 ms
13 [AS3661] 137.189.192.250 224.89 ms
14 *
15 *
16 *
Measurement taken from IPinfo ProbeNet in Mexico City, MX
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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