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 79,229,371,440,083,952,222,718,656,512
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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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
137.189.133.253 AS3661 The Chinese University of Hong Kong 1.72ms from Hong Kong, HK
103.49.163.254 AS3661 The Chinese University of Hong Kong 1.28ms from Hong Kong, HK
137.189.4.173 AS3661 The Chinese University of Hong Kong 1.10ms from Hong Kong, HK
137.189.38.127 AS3661 The Chinese University of Hong Kong 3.06ms from Hong Kong, HK
103.49.161.2 AS3661 The Chinese University of Hong Kong 1.30ms from Hong Kong, HK
137.189.158.19 AS3661 The Chinese University of Hong Kong 2.46ms from Hong Kong, HK
137.189.132.253 AS3661 The Chinese University of Hong Kong 1.32ms from Hong Kong, HK
137.189.102.253 AS3661 The Chinese University of Hong Kong 1.30ms from Hong Kong, HK
137.189.108.27 AS3661 The Chinese University of Hong Kong 3.01ms from Hong Kong, HK
137.189.33.138 AS3661 The Chinese University of Hong Kong 1.83ms from Hong Kong, HK
137.189.162.145 AS3661 The Chinese University of Hong Kong 2.36ms from Hong Kong, HK
137.189.131.253 AS3661 The Chinese University of Hong Kong 1.42ms from Hong Kong, HK
137.189.157.73 AS3661 The Chinese University of Hong Kong 2.75ms from Hong Kong, HK
137.189.138.253 AS3661 The Chinese University of Hong Kong 1.70ms from Hong Kong, HK
175.159.225.62 AS3661 The Chinese University of Hong Kong 1.49ms from Hong Kong, HK
137.189.51.254 AS3661 The Chinese University of Hong Kong 1.31ms from Hong Kong, HK
137.189.2.30 AS3661 The Chinese University of Hong Kong 1.50ms from Hong Kong, HK
137.189.43.252 AS3661 The Chinese University of Hong Kong 1.21ms from Hong Kong, HK
137.189.185.252 AS3661 The Chinese University of Hong Kong 1.36ms from Hong Kong, HK
137.189.242.252 AS3661 The Chinese University of Hong Kong 1.39ms from Hong Kong, HK
137.189.171.253 AS3661 The Chinese University of Hong Kong 1.37ms from Hong Kong, HK
137.189.15.252 AS3661 The Chinese University of Hong Kong 1.40ms from Hong Kong, HK
137.189.83.126 AS3661 The Chinese University of Hong Kong 1.26ms from Hong Kong, HK
137.189.147.253 AS3661 The Chinese University of Hong Kong 1.93ms from Hong Kong, HK
137.189.172.7 AS3661 The Chinese University of Hong Kong 2.34ms 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
178.24.141.253 AS3209 Vodafone GmbH 3.36ms from Berlin, DE
72.30.31.93 AS26101 Yahoo Holdings Inc. 0.83ms from Buffalo, US
139.155.88.29 AS45090 Shenzhen Tencent Computer Systems Company Limited 0.81ms from Chengdu, CN
174.81.193.253 AS20115 Charter Communications LLC 13.18ms from Chicago, US
50.104.66.221 AS5650 Frontier Communications of America, Inc. 4.69ms from Chicago, US
144.161.168.253 AS797 AT&T Services, Inc. 7.97ms from Chicago, US
75.187.145.109 AS10796 Charter Communications Inc 10.28ms from Columbus, US
84.118.211.253 AS3209 Vodafone GmbH 4.61ms from Frankfurt am Main, DE
119.219.205.93 AS4766 Korea Telecom 6.60ms from Incheon, KR
86.139.13.253 AS2856 British Telecommunications PLC 2.73ms from London, GB
92.238.47.189 AS5089 Virgin Media Limited 15.41ms from London, GB
75.220.17.189 AS6167 Verizon Business 10.32ms from Miami, US
96.56.120.189 AS6128 Cablevision Systems Corp. 2.40ms from New York City, US
177.9.103.237 AS27699 TELEFÔNICA BRASIL S.A 1.49ms from Osasco, BR
184.101.143.173 AS209 CenturyLink Communications, LLC 1.96ms from Phoenix, US
54.176.37.189 AS16509 Amazon.com, Inc. 0.15ms from San Jose, US
101.35.238.157 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.46ms from Shanghai, CN
52.197.69.173 AS16509 Amazon.com, Inc. 0.28ms from Tokyo, JP
153.217.227.189 AS4713 NTT DOCOMO BUSINESS,Inc. 3.50ms from Tokyo, JP
20.115.127.189 AS8075 Microsoft Corporation 0.49ms from Ashburn, US
64.22.0.45 AS18474 Aeneas Internet Services 12.65ms from Chicago, US
98.17.9.77 AS7029 Windstream Communications LLC 14.17ms from Chicago, US
87.49.57.13 AS3292 TDC Holding A/S 1.11ms from Copenhagen, DK
45.6.217.173 AS266247 ISPCORP Soluções Digitais Corporativas Ltda. 0.13ms from Fortaleza, BR
109.193.111.253 AS3209 Vodafone GmbH 7.49ms from Frankfurt am Main, DE

Traceroute

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

$
traceroute -a -n -q1 -m5 137.189.71.164
traceroute to 137.189.71.164 (137.189.71.164): 5 hops max, 52 byte packets
1 [AS43289] 45.153.124.1 0.832 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Chisinau, MD
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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