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 70
IPv4 addresses 73,984
IPv6 addresses 79,229,371,440,083,952,222,718,656,512
ASN type Education
Registry apnic
Allocated 23 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 70 domain names hosted across 53 IP addresses on this ASN.

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IP Address Domain Domains on this IP
137.189.89.51 ██████████ 3
123.255.64.6 ██████████ 3
137.189.76.60 ██████████ 3
137.189.97.18 ██████████ 3
137.189.145.111 ██████████ 3
137.189.99.7 ██████████ 2
137.189.165.34 ██████████ 2
137.189.91.192 ██████████ 2
137.189.64.147 ██████████ 2
137.189.172.9 ██████████ 2

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Peers

There are 19 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
AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
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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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
137.189.47.182 AS3661 The Chinese University of Hong Kong 0.88ms from Hong Kong, HK
137.189.69.138 AS3661 The Chinese University of Hong Kong 0.82ms from Hong Kong, HK
137.189.107.251 AS3661 The Chinese University of Hong Kong 0.96ms from Hong Kong, HK
137.189.7.253 AS3661 The Chinese University of Hong Kong 0.99ms from Hong Kong, HK
137.189.49.37 AS3661 The Chinese University of Hong Kong 0.88ms from Hong Kong, HK
137.189.131.253 AS3661 The Chinese University of Hong Kong 1.11ms from Hong Kong, HK
137.189.193.254 AS3661 The Chinese University of Hong Kong 1.11ms from Hong Kong, HK
137.189.144.253 AS3661 The Chinese University of Hong Kong 1.49ms from Hong Kong, HK
137.189.25.126 AS3661 The Chinese University of Hong Kong 1.47ms from Hong Kong, HK
203.188.79.251 AS3661 The Chinese University of Hong Kong 1.03ms from Hong Kong, HK
137.189.34.1 AS3661 The Chinese University of Hong Kong 1.11ms from Hong Kong, HK
137.189.82.254 AS3661 The Chinese University of Hong Kong 1.12ms from Hong Kong, HK
175.159.224.254 AS3661 The Chinese University of Hong Kong 1.51ms from Hong Kong, HK
137.189.242.252 AS3661 The Chinese University of Hong Kong 1.06ms from Hong Kong, HK
137.189.40.30 AS3661 The Chinese University of Hong Kong 0.93ms from Hong Kong, HK
137.189.150.253 AS3661 The Chinese University of Hong Kong 1.39ms from Hong Kong, HK
137.189.2.30 AS3661 The Chinese University of Hong Kong 1.06ms from Hong Kong, HK
137.189.26.254 AS3661 The Chinese University of Hong Kong 1.51ms from Hong Kong, HK
137.189.81.254 AS3661 The Chinese University of Hong Kong 1.20ms from Hong Kong, HK
137.189.161.61 AS3661 The Chinese University of Hong Kong 1.06ms from Hong Kong, HK
137.189.75.164 AS3661 The Chinese University of Hong Kong 0.98ms from Hong Kong, HK
137.189.46.106 AS3661 The Chinese University of Hong Kong 0.96ms from Hong Kong, HK
137.189.240.252 AS3661 The Chinese University of Hong Kong 1.12ms from Hong Kong, HK
137.189.15.252 AS3661 The Chinese University of Hong Kong 1.22ms from Hong Kong, HK
137.189.9.53 AS3661 The Chinese University of Hong Kong 1.01ms 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
68.118.194.61 AS20115 Charter Communications LLC 12.12ms from Ashburn, US
83.134.167.157 AS5432 Proximus NV 3.02ms from Brussels, BE
139.186.238.13 AS45090 Shenzhen Tencent Computer Systems Company Limited 0.17ms from Chongqing, CN
4.17.2.173 AS3356 Level 3 Parent, LLC 0.96ms from Cincinnati, US
130.131.235.205 AS8075 Microsoft Corporation 0.17ms from Des Moines, US
189.125.186.221 AS3549 Level 3 Parent, LLC 0.45ms from Fortaleza, BR
66.80.17.173 AS30058 FDCservers.net 0.27ms from Frankfurt am Main, DE
193.201.71.61 AS25098 Netcalibre Ltd 0.63ms from London, GB
157.119.202.253 AS135269 Fast 4 Technologies 0.76ms from Mumbai, IN
115.225.71.45 AS4134 CHINANET-BACKBONE 7.90ms from Ningbo, CN
51.44.203.93 AS16509 Amazon.com, Inc. 0.60ms from Paris, FR
58.57.193.173 AS4134 CHINANET-BACKBONE 10.46ms from Qingdao, CN
217.141.145.93 AS3269 Telecom Italia S.p.A. 1.64ms from Rome, IT
49.59.13.125 AS4766 Korea Telecom 2.73ms from Seoul, KR
121.63.241.61 AS4134 CHINANET-BACKBONE 5.96ms from Wuhan, CN
93.225.222.141 AS3320 Deutsche Telekom AG 3.43ms from Berlin, DE
173.183.242.253 AS852 TELUS Communications Inc. 0.66ms from Calgary, CA
14.40.239.13 AS4766 Korea Telecom 2.39ms from Incheon, KR
212.227.145.77 AS8560 IONOS SE 0.46ms from Logrono, ES
180.144.68.189 AS17511 OPTAGE Inc. 1.80ms from Osaka, JP
84.96.23.173 AS15557 Societe Francaise Du Radiotelephone - SFR SA 2.99ms from Paris, FR
184.101.143.173 AS209 CenturyLink Communications, LLC 1.84ms from Phoenix, US
54.80.82.125 AS14618 Amazon.com, Inc. 0.18ms from Reston, US
120.88.158.125 AS7545 TPG Telecom Limited 0.25ms from Sydney, AU
184.146.147.29 AS577 Bell Canada 0.69ms from Toronto, CA

Traceroute

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

$
traceroute -a -n -q1 -f4 137.189.127.253
traceroute to 137.189.127.253 (137.189.127.253): 64 hops max, 52 byte packets
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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