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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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

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

IP Address ASN Details
123.255.67.253 AS3661 The Chinese University of Hong Kong 1.62ms from Hong Kong, HK
137.189.140.253 AS3661 The Chinese University of Hong Kong 1.88ms from Hong Kong, HK
103.49.160.147 AS3661 The Chinese University of Hong Kong 1.27ms from Hong Kong, HK
137.189.143.253 AS3661 The Chinese University of Hong Kong 1.81ms from Hong Kong, HK
137.189.192.74 AS3661 The Chinese University of Hong Kong 1.12ms from Hong Kong, HK
137.189.76.252 AS3661 The Chinese University of Hong Kong 1.32ms from Hong Kong, HK
123.255.64.253 AS3661 The Chinese University of Hong Kong 1.24ms from Hong Kong, HK
137.189.75.253 AS3661 The Chinese University of Hong Kong 1.38ms from Hong Kong, HK
137.189.141.253 AS3661 The Chinese University of Hong Kong 1.70ms from Hong Kong, HK
137.189.49.252 AS3661 The Chinese University of Hong Kong 1.24ms from Hong Kong, HK
137.189.18.55 AS3661 The Chinese University of Hong Kong 3.34ms from Hong Kong, HK
137.189.4.175 AS3661 The Chinese University of Hong Kong 1.10ms from Hong Kong, HK
137.189.109.253 AS3661 The Chinese University of Hong Kong 1.39ms from Hong Kong, HK
137.189.130.253 AS3661 The Chinese University of Hong Kong 1.57ms from Hong Kong, HK
137.189.16.253 AS3661 The Chinese University of Hong Kong 1.35ms from Hong Kong, HK
137.189.69.138 AS3661 The Chinese University of Hong Kong 0.97ms from Hong Kong, HK
137.189.46.85 AS3661 The Chinese University of Hong Kong 1.49ms from Hong Kong, HK
137.189.126.189 AS3661 The Chinese University of Hong Kong 1.33ms from Hong Kong, HK
137.189.243.3 AS3661 The Chinese University of Hong Kong 1.60ms from Hong Kong, HK
137.189.79.253 AS3661 The Chinese University of Hong Kong 1.43ms from Hong Kong, HK
137.189.155.60 AS3661 The Chinese University of Hong Kong 1.54ms from Hong Kong, HK
137.189.87.219 AS3661 The Chinese University of Hong Kong 1.40ms from Hong Kong, HK
137.189.72.252 AS3661 The Chinese University of Hong Kong 1.45ms from Hong Kong, HK
137.189.135.253 AS3661 The Chinese University of Hong Kong 1.95ms from Hong Kong, HK
137.189.171.253 AS3661 The Chinese University of Hong Kong 1.42ms 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
51.105.251.109 AS8075 Microsoft Corporation 0.14ms from Amsterdam, NL
73.212.208.13 AS7922 Comcast Cable Communications, LLC 10.76ms from Ashburn, US
178.24.141.253 AS3209 Vodafone GmbH 3.34ms from Berlin, DE
34.208.65.189 AS16509 Amazon.com, Inc. 0.22ms from Boardman, US
177.5.229.125 AS8167 V tal 14.47ms from Brasilia, BR
156.214.168.253 AS8452 TE-AS 3.65ms from Cairo, EG
64.184.90.173 AS32703 Zayo Bandwidth 17.93ms from Chicago, US
97.179.206.29 AS6167 Verizon Business 16.34ms from Chicago, US
147.136.0.13 AS399060 BEC Communications, LLC 3.84ms from Dallas, US
73.158.47.173 AS7922 Comcast Cable Communications, LLC 6.63ms from Fremont, US
175.125.112.189 AS9318 SK Broadband Co Ltd 1.50ms from Incheon, KR
218.54.201.173 AS9318 SK Broadband Co Ltd 0.81ms from Incheon, KR
151.32.105.13 AS1267 WIND TRE S.P.A. 3.94ms from Milan, IT
76.116.90.29 AS7922 Comcast Cable Communications, LLC 6.97ms from Morris Plains, US
184.3.231.173 AS209 CenturyLink Communications, LLC 1.55ms from Portland, US
50.224.128.29 AS7922 Comcast Cable Communications, LLC 0.85ms from Seattle, US
174.165.18.29 AS7922 Comcast Cable Communications, LLC 9.04ms from Seattle, US
119.218.226.253 AS4766 Korea Telecom 5.67ms from Seoul, KR
141.94.61.205 AS16276 OVH SAS 0.07ms from Strasbourg, FR
171.43.201.221 AS58563 CHINANET Hubei province network 0.30ms from Wuhan, CN
173.31.131.141 AS30036 Mediacom Communications Corp 17.30ms from Atlanta, US
45.33.102.141 AS63949 Akamai Connected Cloud 0.39ms from Atlanta, US
87.65.179.205 AS5432 Proximus NV 3.68ms from Brussels, BE
207.250.179.125 AS3549 Level 3 Parent, LLC 0.52ms from Charlotte, US
184.29.216.77 AS16625 Akamai Technologies, Inc. 0.50ms from Denver, US

Traceroute

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

$
traceroute -a -n -q1 -f3 -m6 137.189.214.185
traceroute to 137.189.214.185 (137.189.214.185): 6 hops max, 52 byte packets
3 [AS8966] 5.195.70.164 1.631 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Al Fujairah City, AE
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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