202.40.138.0/24

AS3363  ·  Hong Kong University of Science and Technology

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Summary

Country Hong Kong
Domain ust.hk
ASN AS3363
Registry APNIC
ID NETBLK-USTHK-NETC

WHOIS Details

inetnum:        202.40.138.0 - 202.40.139.255
netname:        NETBLK-USTHK-NETC
descr:          Hong Kong University of Science and Technology
country:        HK
org:            ORG-HKUO1-AP
admin-c:        CC47-AP
tech-c:         KT29-AP
abuse-c:        AH825-AP
status:         ASSIGNED PORTABLE
remarks:        ----------------------------
remarks:        Send abuse reports to
remarks:        abuse@ust.hk
remarks:        ----------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-HK-HKUST
mnt-irt:        IRT-HKUNISCITECH-NON-HK
last-modified:  2020-05-20T00:59:33Z
source:         APNIC

irt:            IRT-HKUNISCITECH-NON-HK
address:        Information Technology Services Center
address:        Hong Kong University of Science & Technology
address:        Clear Water Bay
address:        Kowloon
e-mail:         abuse@ust.hk
abuse-mailbox:  abuse@ust.hk
admin-c:        CC47-AP
tech-c:         KT29-AP
auth:           # Filtered
remarks:        abuse@ust.hk was validated on 2025-07-09
mnt-by:         MAINT-HK-HKUST
last-modified:  2025-11-18T00:29:07Z
source:         APNIC

organisation:   ORG-HKUO1-AP
org-name:       Hong Kong University of Science and Technology
org-type:       LIR
country:        HK
address:        Information Technology Services Center
address:        Clear Water Bay
phone:          +852-2358-6205
fax-no:         +852-2358-0967
e-mail:         dnradmin@ust.hk
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:44Z
source:         APNIC

role:           ABUSE HKUNISCITECHNONHK
country:        ZZ
address:        Information Technology Services Center
address:        Hong Kong University of Science & Technology
address:        Clear Water Bay
address:        Kowloon
phone:          +000000000
e-mail:         abuse@ust.hk
admin-c:        CC47-AP
tech-c:         KT29-AP
nic-hdl:        AH825-AP
remarks:        Generated from irt object IRT-HKUNISCITECH-NON-HK
remarks:        abuse@ust.hk was validated on 2025-07-09
abuse-mailbox:  abuse@ust.hk
mnt-by:         APNIC-ABUSE
last-modified:  2025-07-09T01:04:11Z
source:         APNIC

person:         Charles Choy
address:        Information Technology Services Center Hong Kong University of Science & Technology Clear Water Bay Kowloon Hong Kong
country:        HK
phone:          +852 2358 6208
e-mail:         charles.choy@ust.hk
nic-hdl:        CC47-AP
remarks:        ----------
remarks:        imported from ARIN object:
remarks:        
remarks:        poc-handle:  CC293-ARIN
remarks:        is-role:     N
remarks:        last-name:   Choy
remarks:        first-name:  Charles
remarks:        street:      Information Technology Services Center Clear Water Bay
remarks:        city:        Kowloon
remarks:        country:     HK
remarks:        mailbox:     charles.choy@ust.hk
remarks:        bus-phone:   (852) 2358 6208
remarks:        reg-date:    1970-01-01
remarks:        changed:     hostmaster@arin.poc 20020925
remarks:        source:      ARIN
remarks:        
remarks:        ----------
notify:         charles.choy@ust.hk
mnt-by:         MAINT-HK-HKUST
last-modified:  2008-09-04T07:29:21Z
source:         APNIC

person:         K K Tam
nic-hdl:        KT29-AP
e-mail:         k.k.tam@ust.hk
address:        Information Technology Services Center
address:        Hong Kong University of Science & Technology
address:        Clear Water Bay
address:        Kowloon
address:        Hong Kong
phone:          +852 2358 6246
fax-no:         +852 2358 0967
country:        HK
mnt-by:         MAINT-HK-HKUST
last-modified:  2008-09-04T07:29:21Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 202.40.0.0/16

Range ASN Company Num of IPs
202.40.224.0/19 AS3758 EXPAN-DC 8,192
202.40.192.0/20 AS7651 Lingnan University 4,096
202.40.208.0/21 AS7577 Vocational Training Council 2,048
202.40.0.0/22 AS137549 Anycast Holdings Pty Ltd 1,024
202.40.148.0/23 AS4637 Reach Networks HK Ltd. 512
202.40.0.0/23 AS137549 NODE1 INTERNET 512
202.40.166.0/24 AS153315 Unibeam Networks 256
202.40.167.0/24 AS153315 Unibeam Networks 256
202.40.157.0/24 AS17764 Hong Kong Metropolitan University 256
202.40.219.0/24 AS17764 The Open University of Hong Kong 256
202.40.220.0/24 AS17764 The Open University of Hong Kong 256
202.40.137.0/24 AS17793 Leisure and Cultural Services Department 256
202.40.176.0/24 AS23991 Nationwide ISP & IPTSP 256
202.40.177.0/24 AS23991 Nationwide ISP & IPTSP 256
202.40.178.0/24 AS23991 Nationwide ISP & IPTSP 256
202.40.179.0/24 AS23991 Nationwide ISP & IPTSP 256
202.40.180.0/24 AS23991 Nationwide ISP & IPTSP 256
202.40.181.0/24 AS23991 Nationwide ISP & IPTSP 256
202.40.182.0/24 AS23991 Nationwide ISP & IPTSP 256
202.40.183.0/24 AS23991 Nationwide ISP & IPTSP 256
202.40.164.0/24 AS153315 Unibeam Networks 256
202.40.185.0/24 AS23991 Nationwide ISP & IPTSP 256
202.40.186.0/24 AS23991 Nationwide ISP & IPTSP 256
202.40.187.0/24 AS23991 Nationwide ISP & IPTSP 256
202.40.188.0/24 AS23991 Nationwide ISP & IPTSP 256
202.40.189.0/24 AS23991 Nationwide ISP & IPTSP 256
202.40.190.0/24 AS23991 Nationwide ISP & IPTSP 256
202.40.191.0/24 AS23991 Nationwide ISP & IPTSP 256
202.40.6.0/24 AS24127 iEnergizer 256
202.40.216.0/24 AS3661 CUHK Library 256
202.40.218.0/24 AS3662 HARNET Backbone 256
202.40.221.0/24 AS3662 HARNET Backbone 256
202.40.134.0/24 AS152136 Hong Kong International School 256
202.40.151.0/24 AS138647 The Hong Kong Academy for Performing Arts 256
202.40.217.0/24 AS7650 The Education University of Hong Kong 256
202.40.184.0/24 AS23991 Nationwide ISP & IPTSP 256
202.40.165.0/24 AS153315 Unibeam Networks 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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
72.218.187.152 AS22773 Cox Communications Inc. 9.36ms from Ashburn, US
20.185.218.136 AS8075 Microsoft Corporation 0.41ms from Ashburn, US
190.144.180.120 AS14080 Telmex Colombia S.A. 13.21ms from Bogota, CO
203.89.104.248 AS394298 Airlinq Inc 0.92ms from Dallas, US
2.207.54.216 AS3209 Vodafone GmbH 3.85ms from Duesseldorf, DE
199.17.55.248 AS675 Minnesota State Colleges and Universities 1.85ms from Minneapolis, US
88.174.102.40 AS12322 Free SAS 2.86ms from Paris, FR
112.233.141.248 AS4837 CHINA UNICOM China169 Backbone 4.75ms from Qingdao, CN
176.45.176.232 AS25019 Saudi Telecom Company JSC 1.99ms from Riyadh, SA
80.23.116.120 AS3269 Telecom Italia S.p.A. 6.39ms from Rome, IT
80.234.45.200 AS12389 PJSC Rostelecom 0.50ms from Samara, RU
169.237.245.168 AS6192 University of California, Davis 3.52ms from San Jose, US
191.255.212.216 AS27699 TELEFÔNICA BRASIL S.A 9.88ms from Sao Paulo, BR
218.48.100.8 AS9318 SK Broadband Co Ltd 2.14ms from Seoul, KR
118.170.202.104 AS3462 Data Communication Business Group 2.15ms from Taichung, TW
2.191.205.136 AS58224 Iran Telecommunication Company PJS 14.97ms from Yerevan, AM
213.191.156.104 AS13046 Hrvatski Telekom d.d. 1.10ms from Zagreb, HR
96.249.246.248 AS701 Verizon Business 7.75ms from Ashburn, US
73.40.180.136 AS7922 Comcast Cable Communications, LLC 12.28ms from Ashburn, US
120.3.85.136 AS4837 CHINA UNICOM China169 Backbone 11.07ms from Beijing, CN
18.157.216.88 AS16509 Amazon.com, Inc. 0.16ms from Frankfurt am Main, DE
137.138.7.72 AS513 CERN - European Organization for Nuclear Research 1.10ms from Geneve, CH
223.28.0.248 AS9930 TTNET-MY 0.37ms from Kuala Lumpur, MY
116.176.129.8 AS4837 CHINA UNICOM China169 Backbone 12.83ms from Lanzhou, CN
175.168.201.120 AS4837 CHINA UNICOM China169 Backbone 14.43ms from Liaoyang, CN

Traceroute

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

$
traceroute -a -n -q1 -m4 202.40.138.244
traceroute to 202.40.138.244 (202.40.138.244): 4 hops max, 52 byte packets
2 *
3 *
4 *
Measurement taken from IPinfo ProbeNet in Jeddah, SA
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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