AS number 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 68
Number of IPv4 73,984
Number of IPv6 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 68 domain names hosted across 53 IP addresses on this ASN.

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IP Address Domain Domains on this IP
123.255.64.6 ██████████ 3
137.189.97.18 ██████████ 3
137.189.89.51 ██████████ 3
137.189.99.7 ██████████ 2
137.189.164.2 ██████████ 2
137.189.172.9 ██████████ 2
137.189.34.1 ██████████ 2
137.189.91.192 ██████████ 2
137.189.43.96 ██████████ 2
137.189.100.214 ██████████ 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.
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
AS7660 Asia Pacific Advanced Network - Japan
AS7713 PT Telekomunikasi Indonesia
AS8359 MTS PJSC
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Upstreams

There are 3 upstreams for this ASN.

upstreams Name
AS3662 Joint Universities Computer Centre Limited
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

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

IP Address ASN Details
137.189.41.27 AS3661 The Chinese University of Hong Kong 1.20ms from Hong Kong, HK
137.189.27.252 AS3661 The Chinese University of Hong Kong 1.38ms from Hong Kong, HK
137.189.70.252 AS3661 The Chinese University of Hong Kong 1.38ms from Hong Kong, HK
137.189.128.253 AS3661 The Chinese University of Hong Kong 1.72ms from Hong Kong, HK
137.189.101.253 AS3661 The Chinese University of Hong Kong 1.39ms from Hong Kong, HK
137.189.138.253 AS3661 The Chinese University of Hong Kong 1.78ms from Hong Kong, HK
137.189.86.253 AS3661 The Chinese University of Hong Kong 1.40ms from Hong Kong, HK
137.189.240.253 AS3661 The Chinese University of Hong Kong 1.39ms from Hong Kong, HK
175.159.225.126 AS3661 The Chinese University of Hong Kong 1.29ms from Hong Kong, HK
137.189.171.252 AS3661 The Chinese University of Hong Kong 1.33ms from Hong Kong, HK
137.189.6.254 AS3661 The Chinese University of Hong Kong 1.82ms from Hong Kong, HK
137.189.98.30 AS3661 The Chinese University of Hong Kong 1.28ms from Hong Kong, HK
2405:3000:ca2d:bc0:202:45:188:2 AS3661 The Chinese University of Hong Kong 1.18ms from Hong Kong, HK
137.189.97.19 AS3661 The Chinese University of Hong Kong 1.54ms from Hong Kong, HK
123.255.64.1 AS3661 The Chinese University of Hong Kong 1.16ms from Hong Kong, HK
137.189.164.2 AS3661 The Chinese University of Hong Kong 1.75ms from Hong Kong, HK
137.189.109.252 AS3661 The Chinese University of Hong Kong 1.36ms from Hong Kong, HK
137.189.130.254 AS3661 The Chinese University of Hong Kong 1.43ms from Hong Kong, HK
137.189.149.253 AS3661 The Chinese University of Hong Kong 1.74ms from Hong Kong, HK
137.189.95.252 AS3661 The Chinese University of Hong Kong 1.44ms from Hong Kong, HK
137.189.176.254 AS3661 The Chinese University of Hong Kong 1.52ms from Hong Kong, HK
137.189.51.252 AS3661 The Chinese University of Hong Kong 1.43ms from Hong Kong, HK
137.189.144.253 AS3661 The Chinese University of Hong Kong 1.74ms from Hong Kong, HK
137.189.242.253 AS3661 The Chinese University of Hong Kong 1.41ms from Hong Kong, HK
137.189.62.58 AS3661 The Chinese University of Hong Kong 1.81ms 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
77.169.87.173 AS1136 KPN B.V. 2.22ms from Amsterdam, NL
140.86.223.237 AS31898 Oracle Corporation 0.39ms from Ashburn, US
20.96.108.237 AS8075 Microsoft Corporation 0.39ms from Boydton, US
173.9.255.189 AS7922 Comcast Cable Communications, LLC 4.99ms from Chicago, US
107.178.219.77 AS396982 Google LLC 0.13ms from Council Bluffs, US
67.174.105.45 AS7922 Comcast Cable Communications, LLC 3.92ms from Denver, US
113.68.241.109 AS4134 CHINANET-BACKBONE 2.50ms from Guangzhou, CN
193.94.41.93 AS719 Elisa Oyj 1.36ms from Helsinki, FI
78.187.99.237 AS9121 Turk Telekomunikasyon Anonim Sirketi 7.72ms from Istanbul, TR
195.39.197.205 AS28907 Internet Invest, Ltd. 0.35ms from Kyiv, UA
79.35.194.173 AS3269 Telecom Italia S.p.A. 9.61ms from Milan, IT
37.195.66.253 AS31200 Novotelecom Ltd 1.63ms from Novosibirsk, RU
97.104.70.45 AS33363 Charter Communications, Inc 9.47ms from Orlando, US
160.251.232.173 AS58791 GMO Internet Group, Inc. 9.88ms from Osaka, JP
13.66.212.205 AS8075 Microsoft Corporation 0.32ms from Quincy, US
201.111.112.77 AS8151 UNINET 10.00ms from Santiago de Queretaro, MX
49.56.78.93 AS4766 Korea Telecom 1.39ms from Seoul, KR
213.180.0.173 AS3249 Telia Eesti AS 0.60ms from Tallinn, EE
43.207.146.45 AS16509 Amazon.com, Inc. 1.26ms from Tokyo, JP
180.36.255.205 AS4713 NTT DOCOMO BUSINESS,Inc. 7.86ms from Tokyo, JP
217.70.157.77 AS34081 INCUBATEC GmbH - Srl 5.48ms from Falkenstein, DE
187.201.123.45 AS8151 UNINET 1.08ms from Guadalajara, MX
119.2.54.61 AS55666 PT Media Sarana Data 9.10ms from Jakarta, ID
104.56.246.205 AS7018 AT&T Enterprises, LLC 5.19ms from Los Angeles, US
123.243.120.125 AS7545 TPG Telecom Limited 0.60ms from Melbourne, AU

Traceroute

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

$
traceroute -a -n -q1 -m6 137.189.158.28
traceroute to 137.189.158.28 (137.189.158.28): 6 hops max, 52 byte packets
1 [AS15169] 72.14.239.92 17.586 ms
2 [] 123.255.91.50 17.011 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Chang-hua, TW
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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