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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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

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

IP Address ASN Details
203.188.64.36 AS3661 The Chinese University of Hong Kong 1.13ms from Hong Kong, HK
137.189.143.254 AS3661 The Chinese University of Hong Kong 2.12ms from Hong Kong, HK
137.189.142.253 AS3661 The Chinese University of Hong Kong 1.97ms from Hong Kong, HK
137.189.35.253 AS3661 The Chinese University of Hong Kong 1.43ms from Hong Kong, HK
137.189.84.121 AS3661 The Chinese University of Hong Kong 2.33ms from Hong Kong, HK
137.189.155.60 AS3661 The Chinese University of Hong Kong 1.44ms from Hong Kong, HK
137.189.43.253 AS3661 The Chinese University of Hong Kong 1.32ms from Hong Kong, HK
137.189.151.253 AS3661 The Chinese University of Hong Kong 1.98ms from Hong Kong, HK
203.188.79.253 AS3661 The Chinese University of Hong Kong 1.33ms from Hong Kong, HK
137.189.27.252 AS3661 The Chinese University of Hong Kong 1.29ms from Hong Kong, HK
137.189.158.19 AS3661 The Chinese University of Hong Kong 2.20ms from Hong Kong, HK
137.189.90.247 AS3661 The Chinese University of Hong Kong 1.70ms from Hong Kong, HK
103.49.161.124 AS3661 The Chinese University of Hong Kong 1.35ms from Hong Kong, HK
137.189.2.54 AS3661 The Chinese University of Hong Kong 1.31ms from Hong Kong, HK
137.189.19.254 AS3661 The Chinese University of Hong Kong 1.32ms from Hong Kong, HK
137.189.138.253 AS3661 The Chinese University of Hong Kong 1.68ms from Hong Kong, HK
137.189.162.145 AS3661 The Chinese University of Hong Kong 2.55ms from Hong Kong, HK
137.189.99.252 AS3661 The Chinese University of Hong Kong 1.28ms from Hong Kong, HK
137.189.52.254 AS3661 The Chinese University of Hong Kong 1.51ms from Hong Kong, HK
137.189.175.252 AS3661 The Chinese University of Hong Kong 1.49ms from Hong Kong, HK
137.189.81.253 AS3661 The Chinese University of Hong Kong 1.44ms from Hong Kong, HK
137.189.63.252 AS3661 The Chinese University of Hong Kong 1.23ms from Hong Kong, HK
137.189.34.1 AS3661 The Chinese University of Hong Kong 1.60ms from Hong Kong, HK
137.189.47.248 AS3661 The Chinese University of Hong Kong 1.18ms from Hong Kong, HK
137.189.89.231 AS3661 The Chinese University of Hong Kong 1.23ms 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
20.93.173.205 AS8075 Microsoft Corporation 0.24ms from Amsterdam, NL
184.54.27.61 AS10796 Charter Communications Inc 9.46ms from Columbus, US
119.247.146.189 AS9269 Hong Kong Broadband Network Ltd. 1.25ms from Hong Kong, HK
41.23.79.253 AS36994 Vodacom 18.26ms from Johannesburg, ZA
139.138.26.13 AS16417 Cisco Systems Ironport Division 1.86ms from Las Vegas, US
68.80.195.173 AS7922 Comcast Cable Communications, LLC 8.51ms from Morris Plains, US
95.64.171.61 AS8359 MTS PJSC 1.39ms from Moscow, RU
112.232.43.109 AS4837 CHINA UNICOM China169 Backbone 6.35ms from Qingdao, CN
180.166.61.189 AS4812 China Telecom (Group) 4.17ms from Shanghai, CN
145.108.75.253 AS1103 SURF B.V. 0.85ms from Amsterdam, NL
45.20.71.45 AS7018 AT&T Enterprises, LLC 2.08ms from Atlanta, US
47.187.153.109 AS5650 Frontier Communications of America, Inc. 1.69ms from Dallas, US
38.129.137.237 AS26042 FiberState, LLC 0.11ms from Draper, US
124.90.41.141 AS4837 CHINA UNICOM China169 Backbone 4.49ms from Hangzhou, CN
223.92.20.61 AS56041 China Mobile communications corporation 2.81ms from Hangzhou, CN
84.251.70.61 AS1759 Telia Finland Oyj 1.13ms from Helsinki, FI
148.139.102.77 AS16839 SERVICENOW, INC. 7.89ms from Kelowna, CA
201.145.119.61 AS8151 UNINET 1.64ms from Mexico City, MX
185.222.155.29 AS196695 NetOne Rus JSC 0.65ms from Moscow, RU
71.43.247.45 AS33363 Charter Communications, Inc 6.77ms from Orlando, US
180.144.68.189 AS17511 OPTAGE Inc. 1.39ms from Osaka, JP
60.130.160.61 AS17676 SoftBank Corp. 3.77ms from Osaka, JP
56.124.51.45 AS16509 Amazon.com, Inc. 0.15ms from Osasco, BR
23.51.99.13 AS16625 Akamai Technologies, Inc. 0.46ms from Paris, FR
124.55.17.45 AS17858 LG POWERCOMM 1.80ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 137.189.32.179
traceroute to 137.189.32.179 (137.189.32.179): 64 hops max, 52 byte packets
3 [] 31.31.38.36 0.285 ms
4 [] 123.255.91.50 1.256 ms
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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