Autonomous System details

AS3661

The Chinese University of Hong Kong  ·  cuhk.edu.hk

Hong Kong

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AS3661 – The Chinese University of Hong Kong

Field Value
Country Hong Kong
Website cuhk.edu.hk
Hosted domains 69
IPv4 addresses 73,984
IPv6 addresses 79,229,371,440,083,952,629,200,000,000
ASN type Education
Registry apnic
Allocated 24 years ago on Aug 01, 2002
Updated 3 years ago on Dec 05, 2022

IP Ranges

Netblock Company Num of IPs
137.189.0.0/16 The Chinese University of Hong Kong 65,536
203.188.64.0/20 The Chinese University of Hong Kong 4,096
123.255.64.0/21 Information Technology Services Centre 2,048
103.49.160.0/22 The Chinese University of Hong Kong 1,024
175.159.224.0/22 The Chinese University of Hong Kong 1,024
137.189.196.0/24 The Chinese University of Hong Kong 256
202.40.216.0/24 CUHK Library 256
Netblock Company
2405:3000::/32 The Chinese University of Hong Kong
2001:ce0:3::/48 Joint Universities Computer Centre Limited
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WHOIS Details

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                                                ASHandle:       AS3661
                                                OrgID:          AS3661
                                                ASName:         AS3661
                                                ASNumber:       AS3661
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 69 domain names hosted across 53 IP addresses on this ASN.

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IP Address Domain Domains on this IP
137.189.97.18 ██████████ 3
137.189.76.60 ███████ 3
137.189.145.111 ██████████ 3
137.189.89.51 ██████████ 3
123.255.64.6 ██████████ 3
137.189.41.180 ███████ 2
137.189.172.9 ██████████ 2
137.189.99.7 ██████████ 2
137.189.91.192 ██████████ 2
137.189.43.96 ██████████ 2

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Peers

There are 18 peers for this ASN.

Peers Name
AS132337 Axclusive
AS137207 Joint Universities Computer Centre Limited
AS140627 OneQode
AS18106 Viewqwest Pte Ltd
AS24482 SG.GS
AS36236 NetActuate, Inc
AS3662 Joint Universities Computer Centre Limited
AS38008 Aperture Science Limited
AS39120 Convergenze S.p.A.
AS45474 Nexusguard Pte. Ltd.
AS45796 UIH / BB Connect
AS4635 Hong Kong Internet Exchange--Route Server 1
AS4641 The Hong Kong Internet Exchange Limited
AS49544 i3D.net B.V
AS55720 Gigabit Hosting Sdn Bhd
AS6939 Hurricane Electric LLC
AS7713 PT Telekomunikasi Indonesia
AS8359 MTS PJSC
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ASN API & Database

Upstreams

There are 4 upstreams for this ASN.

upstreams Name
AS3662 Joint Universities Computer Centre Limited
AS45474 Nexusguard Pte. Ltd.
AS4641 The Hong Kong Internet Exchange Limited
AS6939 Hurricane Electric LLC
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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
137.189.41.27 AS3661 The Chinese University of Hong Kong 1.25ms from Hong Kong, HK
137.189.177.228 AS3661 The Chinese University of Hong Kong 2.85ms from Hong Kong, HK
137.189.155.60 AS3661 The Chinese University of Hong Kong 1.44ms from Hong Kong, HK
137.189.13.254 AS3661 The Chinese University of Hong Kong 1.36ms from Hong Kong, HK
137.189.176.253 AS3661 The Chinese University of Hong Kong 1.34ms from Hong Kong, HK
137.189.64.161 AS3661 The Chinese University of Hong Kong 2.69ms from Hong Kong, HK
2405:3000:ca2d:bc0:202:45:188:2 AS3661 The Chinese University of Hong Kong 1.14ms from Hong Kong, HK
137.189.47.248 AS3661 The Chinese University of Hong Kong 1.18ms from Hong Kong, HK
103.49.160.195 AS3661 The Chinese University of Hong Kong 1.23ms from Hong Kong, HK
137.189.72.69 AS3661 The Chinese University of Hong Kong 1.21ms from Hong Kong, HK
137.189.243.3 AS3661 The Chinese University of Hong Kong 1.38ms from Hong Kong, HK
137.189.84.121 AS3661 The Chinese University of Hong Kong 2.33ms from Hong Kong, HK
137.189.196.251 AS3661 The Chinese University of Hong Kong 1.90ms from Hong Kong, HK
137.189.49.15 AS3661 The Chinese University of Hong Kong 1.07ms from Hong Kong, HK
137.189.33.138 AS3661 The Chinese University of Hong Kong 1.54ms from Hong Kong, HK
137.189.50.236 AS3661 The Chinese University of Hong Kong 2.69ms from Hong Kong, HK
137.189.66.171 AS3661 The Chinese University of Hong Kong 1.95ms from Hong Kong, HK
137.189.46.85 AS3661 The Chinese University of Hong Kong 1.36ms from Hong Kong, HK
137.189.141.253 AS3661 The Chinese University of Hong Kong 1.68ms from Hong Kong, HK
137.189.102.254 AS3661 The Chinese University of Hong Kong 1.17ms from Hong Kong, HK
137.189.161.60 AS3661 The Chinese University of Hong Kong 1.24ms from Hong Kong, HK
137.189.62.58 AS3661 The Chinese University of Hong Kong 1.88ms from Hong Kong, HK
137.189.108.27 AS3661 The Chinese University of Hong Kong 2.75ms from Hong Kong, HK
137.189.25.254 AS3661 The Chinese University of Hong Kong 1.77ms from Hong Kong, HK
175.159.225.126 AS3661 The Chinese University of Hong Kong 1.78ms 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
221.219.103.173 AS4808 China Unicom Beijing Province Network 4.03ms from Beijing, CN
78.54.46.93 AS6805 Telefonica Germany GmbH & Co.OHG 3.12ms from Berlin, DE
50.195.13.13 AS7922 Comcast Cable Communications, LLC 5.67ms from Boston, US
201.180.104.141 AS22927 Telefonica de Argentina 4.93ms from Buenos Aires, AR
172.244.202.13 AS7922 Comcast Cable Communications, LLC 6.38ms from Chicago, US
14.40.239.13 AS4766 Korea Telecom 2.41ms from Incheon, KR
213.74.222.157 AS34984 Superonline Iletisim Hizmetleri A.S. 2.16ms from Istanbul, TR
2.96.186.157 AS13285 TalkTalk Communications Limited 4.12ms from London, GB
86.14.21.205 AS5089 Virgin Media Limited 8.35ms from London, GB
81.96.30.29 AS5089 Virgin Media Limited 10.04ms from London, GB
151.20.12.253 AS1267 WIND TRE S.P.A. 2.19ms from Milan, IT
92.242.39.93 AS49063 Data Storage Center JSC 0.83ms from Moscow, RU
124.56.151.205 AS17858 LG POWERCOMM 2.11ms from Seoul, KR
217.16.75.13 AS16333 Company for communications services A1 Makedonija DOOEL Skopje 5.72ms from Sofia, BG
83.24.124.125 AS5617 Orange Polska Spolka Akcyjna 1.63ms from Warsaw, PL
100.21.100.205 AS16509 Amazon.com, Inc. 0.10ms from Boardman, US
181.2.103.125 AS7303 Telecom Argentina S.A. 1.53ms from Buenos Aires, AR
205.70.104.237 AS627 United States Department of Defense (DoD) 10.39ms from Charlotte, US
97.234.32.93 AS6167 Verizon Business 18.12ms from Chicago, US
97.130.54.205 AS6167 Verizon Business 10.49ms from Chicago, US
51.178.79.13 AS16276 OVH SAS 0.06ms from Gravelines, FR
46.65.124.141 AS5607 Sky UK Limited 13.16ms from London, GB
37.134.175.45 AS12479 Orange Espagne SA 10.59ms from Madrid, ES
100.8.186.157 AS701 Verizon Business 1.57ms from New York City, US
56.124.51.45 AS16509 Amazon.com, Inc. 0.15ms from Osasco, BR

Traceroute

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

$
traceroute -a -n -q1 -f2 137.189.10.43
traceroute to 137.189.10.43 (137.189.10.43): 64 hops max, 52 byte packets
3 *
4 [] 123.255.91.50 1.145 ms
6 *
Measurement taken from IPinfo ProbeNet in Hong Kong, HK
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS3661 at robtex.

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