203.188.112.0/24

AS3662  ·  Joint Universities Computer Centre Limited

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Summary

Country Hong Kong
Domain jucc.edu.hk
ASN AS3662
Registry APNIC
ID HARNET-NET

WHOIS Details

inetnum:        203.188.112.0 - 203.188.112.255
netname:        HARNET-NET
descr:          HARNET Backbone
country:        HK
admin-c:        AC88-AP
tech-c:         HTS5-AP
abuse-c:        AJ481-AP
status:         ALLOCATED NON-PORTABLE
notify:         [email protected]
mnt-by:         MAINT-JUCC-AP
mnt-lower:      MAINT-JUCC-AP
mnt-routes:     MAINT-JUCC-AP
mnt-irt:        IRT-JUCC-HK
last-modified:  2021-05-12T03:11:50Z
source:         APNIC

irt:            IRT-JUCC-HK
address:        Joint Universities Computer Centre
address:        c/o Information Technology Services
address:        The University of Hong Kong
address:        Pokfulam Road
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        GM806-AP
tech-c:         DC1224-AP
tech-c:         HTS5-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-12-23
mnt-by:         MAINT-JUCC-AP
last-modified:  2025-12-23T16:12:47Z
source:         APNIC

role:           ABUSE JUCCHK
country:        ZZ
address:        Joint Universities Computer Centre
address:        c/o Information Technology Services
address:        The University of Hong Kong
address:        Pokfulam Road
phone:          +000000000
e-mail:         [email protected]
admin-c:        GM806-AP
tech-c:         DC1224-AP
tech-c:         HTS5-AP
nic-hdl:        AJ481-AP
remarks:        Generated from irt object IRT-JUCC-HK
remarks:        [email protected] was validated on 2025-12-23
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-23T16:13:17Z
source:         APNIC

role:           HARNET Technical Support
address:        Joint Universities Computer Centre Ltd
address:        c/o ITS, The University of Hong Kong
address:        Pokfulam
country:        HK
phone:          +852-2859-2491
fax-no:         +852-2559-7904
e-mail:         [email protected]
admin-c:        GM806-AP
tech-c:         DC1224-AP
tech-c:         HTS5-AP
nic-hdl:        HTS5-AP
notify:         [email protected]
abuse-mailbox:  [email protected]
mnt-by:         MAINT-JUCC-AP
last-modified:  2021-07-15T02:42:16Z
source:         APNIC

person:         Anita W Y CHAN
nic-hdl:        AC88-AP
e-mail:         [email protected]
address:        Joint Universities Computer Centre
address:        c/o Information Technology Services
address:        The University of Hong Kong
address:        Pokfulam Road
address:        Hong Kong
phone:          +852-2859-2491
fax-no:         +852-2559-7904
country:        HK
mnt-by:         MAINT-JUCC-AP
last-modified:  2013-08-06T06:17:14Z
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
203.188.64.0/20 AS3661 The Chinese University of Hong Kong 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
203.188.117.0/24 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

Pingable IPs

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

IP Address ASN Details
203.188.112.3 AS3662 Joint Universities Computer Centre Limited 1.36ms 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
40.91.241.200 AS8075 Microsoft Corporation 0.29ms from Amsterdam, NL
145.190.24.8 AS8069 Microsoft Corporation 0.44ms from Ashburn, US
188.26.170.248 AS8708 DIGI ROMANIA S.A. 0.89ms from Bucharest, RO
109.78.179.136 AS15502 Vodafone Ireland Limited 4.38ms from Dublin, IE
94.6.89.8 AS5607 Sky UK Limited 3.00ms from Erith, GB
114.132.198.248 AS45090 Shenzhen Tencent Computer Systems Company Limited 2.20ms from Guangzhou, CN
80.229.231.152 AS6871 Plusnet 2.89ms from London, GB
98.225.84.40 AS7922 Comcast Cable Communications, LLC 16.86ms from Los Angeles, US
81.77.13.216 AS5378 Vodafone Limited 4.98ms from Manchester, GB
73.108.193.248 AS7922 Comcast Cable Communications, LLC 12.74ms from Murfreesboro, US
104.229.101.248 AS11351 Charter Communications Inc 18.45ms from New York City, US
125.56.87.24 AS7679 QTnet,Inc. 7.54ms from Osaka, JP
38.54.4.136 AS138915 Kaopu Cloud HK Limited 0.01ms from Phnom Penh, KH
52.242.36.152 AS8075 Microsoft Corporation 0.17ms from Quebec, CA
3.89.38.232 AS14618 Amazon.com, Inc. 0.45ms from Reston, US
3.238.58.248 AS14618 Amazon.com, Inc. 0.17ms from Reston, US
2.88.205.232 AS25019 Saudi Telecom Company JSC 1.55ms from Riyadh, SA
104.228.6.104 AS11351 Charter Communications Inc 12.57ms from Secaucus, US
73.226.142.56 AS7922 Comcast Cable Communications, LLC 6.06ms from Secaucus, US
89.233.203.232 AS29518 Bredband2 AB 4.61ms from Stockholm, SE
120.156.18.168 AS1221 Telstra Limited 1.66ms from Sydney, AU
163.27.72.200 AS1659 Taiwan Academic Network (TANet) Information Center 5.35ms from Taichung, TW
58.99.108.72 AS18049 Taiwan Infrastructure Network Technologie 3.62ms from Taipei, TW
34.17.58.8 AS396982 Google LLC 0.10ms from Turin, IT
42.235.235.120 AS4837 CHINA UNICOM China169 Backbone 3.25ms from Zhengzhou, CN

Traceroute

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

$
traceroute -a -n -q1 -f4 203.188.112.11
traceroute to 203.188.112.11 (203.188.112.11): 64 hops max, 52 byte packets
4 [AS3662] 203.188.117.6 1.747 ms
5 *
Measurement taken from IPinfo ProbeNet in Hong Kong, HK
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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