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
137.189.172.9 ██████████ 4
137.189.145.111 ██████████ 3
137.189.76.60 ███████ 3
137.189.89.51 ██████████ 3
137.189.97.18 ██████████ 3
123.255.64.6 ██████████ 3
137.189.41.180 ███████ 2
137.189.94.156 ██████████ 2
137.189.91.192 ██████████ 2
137.189.99.7 ██████████ 2

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Peers

There are 17 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
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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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
137.189.96.245 AS3661 The Chinese University of Hong Kong 1.19ms from Hong Kong, HK
137.189.139.253 AS3661 The Chinese University of Hong Kong 1.70ms from Hong Kong, HK
137.189.134.253 AS3661 The Chinese University of Hong Kong 1.71ms from Hong Kong, HK
137.189.92.253 AS3661 The Chinese University of Hong Kong 1.34ms from Hong Kong, HK
137.189.143.253 AS3661 The Chinese University of Hong Kong 1.67ms from Hong Kong, HK
123.255.67.252 AS3661 The Chinese University of Hong Kong 1.41ms from Hong Kong, HK
137.189.243.3 AS3661 The Chinese University of Hong Kong 1.26ms from Hong Kong, HK
103.49.160.193 AS3661 The Chinese University of Hong Kong 1.16ms from Hong Kong, HK
2405:3000:ca2d:bc0:202:45:188:2 AS3661 The Chinese University of Hong Kong 1.21ms from Hong Kong, HK
137.189.51.252 AS3661 The Chinese University of Hong Kong 1.35ms from Hong Kong, HK
137.189.138.253 AS3661 The Chinese University of Hong Kong 1.74ms from Hong Kong, HK
137.189.100.28 AS3661 The Chinese University of Hong Kong 124.61ms from Adelaide, AU
137.189.56.24 AS3661 The Chinese University of Hong Kong 1.35ms from Hong Kong, HK
137.189.184.252 AS3661 The Chinese University of Hong Kong 1.32ms from Hong Kong, HK
137.189.32.152 AS3661 The Chinese University of Hong Kong 1.26ms from Hong Kong, HK
103.49.163.254 AS3661 The Chinese University of Hong Kong 1.22ms from Hong Kong, HK
137.189.63.253 AS3661 The Chinese University of Hong Kong 1.37ms from Hong Kong, HK
137.189.126.253 AS3661 The Chinese University of Hong Kong 1.17ms from Hong Kong, HK
137.189.88.127 AS3661 The Chinese University of Hong Kong 1.02ms from Hong Kong, HK
137.189.196.253 AS3661 The Chinese University of Hong Kong 1.97ms from Hong Kong, HK
137.189.7.253 AS3661 The Chinese University of Hong Kong 1.33ms from Hong Kong, HK
137.189.145.252 AS3661 The Chinese University of Hong Kong 2.02ms from Hong Kong, HK
137.189.176.252 AS3661 The Chinese University of Hong Kong 1.33ms from Hong Kong, HK
137.189.79.253 AS3661 The Chinese University of Hong Kong 1.34ms from Hong Kong, HK
137.189.109.253 AS3661 The Chinese University of Hong Kong 1.33ms 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
117.205.134.205 AS9829 National Internet Backbone 14.97ms from Bengaluru, IN
80.144.114.13 AS3320 Deutsche Telekom AG 5.13ms from Berlin, DE
201.178.69.173 AS22927 Telefonica de Argentina 4.45ms from Buenos Aires, AR
216.96.91.253 AS7029 Windstream Communications LLC 9.23ms from Dallas, US
52.28.130.141 AS16509 Amazon.com, Inc. 0.17ms from Frankfurt am Main, DE
91.2.101.77 AS3320 Deutsche Telekom AG 8.32ms from Frankfurt am Main, DE
1.12.234.109 AS45090 Shenzhen Tencent Computer Systems Company Limited 2.17ms from Guangzhou, CN
94.62.125.125 AS12353 Vodafone Portugal 2.98ms from Lisbon, PT
72.238.181.205 AS33363 Charter Communications, Inc 9.56ms from Orlando, US
70.67.146.253 AS6327 Shaw Communications 8.81ms from Seattle, US
114.94.2.141 AS4812 China Telecom (Group) 3.25ms from Shanghai, CN
27.23.240.61 AS4134 CHINANET BACKBONE 2.41ms from Wuhan, CN
81.63.157.205 AS3303 Swisscom (Switzerland) Ltd 1.82ms from Zuerich, CH
107.207.217.45 AS7018 AT&T Enterprises, LLC 16.89ms from Atlanta, US
49.231.200.61 AS45458 SBN-ISP/AWN-ISP and SBN-NIX/AWN-NIX 2.19ms from Bangkok, TH
121.18.3.109 AS4837 CHINA UNICOM China169 Backbone 8.93ms from Beijing, CN
94.224.137.221 AS6848 Telenet BV 5.67ms from Brussels, BE
136.119.13.173 AS396982 Google LLC 0.13ms from Council Bluffs, US
189.125.186.221 AS3549 Level 3 Parent, LLC 0.31ms from Fortaleza, BR
91.65.27.253 AS3209 Vodafone GmbH 3.19ms from Hamburg, DE
114.29.158.45 AS23563 SK Broadband Co Ltd 1.34ms from Incheon, KR
95.64.171.61 AS8359 MTS PJSC 1.39ms from Moscow, RU
24.20.116.61 AS7922 Comcast Cable Communications, LLC 5.43ms from Portland, US
1.40.97.173 AS4804 Microplex PTY LTD 2.06ms from Sydney, AU
31.7.160.253 AS42109 Viva Armenia CJSC 0.29ms from Yerevan, AM

Traceroute

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

$
traceroute -a -n -q1 -m6 137.189.206.217
traceroute to 137.189.206.217 (137.189.206.217): 6 hops max, 52 byte packets
2 *
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Cayenne, GF
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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