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 67
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 67 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
137.189.43.96 ██████████ 2
137.189.164.2 ██████████ 2
137.189.34.1 ██████████ 2
137.189.100.214 ██████████ 2
137.189.172.9 ██████████ 2
123.255.65.127 ██████████ 2
137.189.91.192 ██████████ 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.
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
AS9002 RETN Limited
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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

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

IP Address ASN Details
137.189.192.49 AS3661 The Chinese University of Hong Kong 0.81ms from Hong Kong, HK
137.189.131.254 AS3661 The Chinese University of Hong Kong 1.13ms from Hong Kong, HK
137.189.62.58 AS3661 The Chinese University of Hong Kong 1.57ms from Hong Kong, HK
137.189.144.253 AS3661 The Chinese University of Hong Kong 1.44ms from Hong Kong, HK
175.159.226.254 AS3661 The Chinese University of Hong Kong 2.03ms from Hong Kong, HK
137.189.87.252 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 0.97ms from Hong Kong, HK
137.189.89.231 AS3661 The Chinese University of Hong Kong 0.89ms from Hong Kong, HK
137.189.128.254 AS3661 The Chinese University of Hong Kong 1.39ms from Hong Kong, HK
137.189.136.253 AS3661 The Chinese University of Hong Kong 1.41ms from Hong Kong, HK
137.189.76.147 AS3661 The Chinese University of Hong Kong 0.93ms from Hong Kong, HK
137.189.81.252 AS3661 The Chinese University of Hong Kong 1.08ms from Hong Kong, HK
137.189.59.253 AS3661 The Chinese University of Hong Kong 1.18ms from Hong Kong, HK
137.189.94.195 AS3661 The Chinese University of Hong Kong 0.89ms from Hong Kong, HK
137.189.100.27 AS3661 The Chinese University of Hong Kong 49.69ms from Fuzhou, CN
137.189.179.252 AS3661 The Chinese University of Hong Kong 1.12ms from Hong Kong, HK
203.188.64.4 AS3661 The Chinese University of Hong Kong 0.93ms from Hong Kong, HK
137.189.40.30 AS3661 The Chinese University of Hong Kong 0.95ms from Hong Kong, HK
137.189.25.254 AS3661 The Chinese University of Hong Kong 1.42ms from Hong Kong, HK
137.189.243.3 AS3661 The Chinese University of Hong Kong 1.03ms from Hong Kong, HK
137.189.43.252 AS3661 The Chinese University of Hong Kong 1.13ms from Hong Kong, HK
175.159.225.197 AS3661 The Chinese University of Hong Kong 1.11ms from Hong Kong, HK
175.159.224.254 AS3661 The Chinese University of Hong Kong 1.68ms from Hong Kong, HK
137.189.96.62 AS3661 The Chinese University of Hong Kong 0.99ms from Hong Kong, HK
137.189.15.252 AS3661 The Chinese University of Hong Kong 1.08ms 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
84.84.205.13 AS1136 KPN B.V. 1.53ms from Amsterdam, NL
5.161.141.189 AS213230 Hetzner Online GmbH 0.35ms from Ashburn, US
73.122.201.45 AS7922 Comcast Cable Communications, LLC 4.76ms from Atlanta, US
123.127.11.205 AS4808 China Unicom Beijing Province Network 3.01ms from Beijing, CN
76.152.210.13 AS7922 Comcast Cable Communications, LLC 7.06ms from Boston, US
43.229.61.13 AS133159 Mammoth Media Pty Ltd 0.35ms from Brisbane, AU
34.56.188.173 AS396982 Google LLC 0.11ms from Council Bluffs, US
18.158.152.173 AS16509 Amazon.com, Inc. 0.18ms from Frankfurt am Main, DE
129.159.10.13 AS31898 Oracle Corporation 0.38ms from Frankfurt am Main, DE
217.254.6.109 AS3320 Deutsche Telekom AG 9.66ms from Frankfurt am Main, DE
112.197.253.109 AS45543 SaiGon Tourist cable Televition Company 3.21ms from Ho Chi Minh City, VN
4.213.178.61 AS8075 Microsoft Corporation 0.15ms from Lohogaon, IN
81.155.160.125 AS2856 British Telecommunications PLC 3.73ms from London, GB
104.32.179.221 AS20001 Charter Communications Inc 6.64ms from Los Angeles, US
112.203.240.221 AS9299 Philippine Long Distance Telephone Company 4.13ms from Manila, PH
68.63.211.189 AS7922 Comcast Cable Communications, LLC 5.59ms from Minneapolis, US
154.84.224.29 AS45194 Syscon Infoway Pvt. Ltd. 0.63ms from Mumbai, IN
14.132.202.173 AS18126 Chubu Telecommunications Company, Inc. 5.22ms from Osaka, JP
195.25.109.237 AS3215 Orange S.A. 2.35ms from Paris, FR
201.79.179.77 AS7738 V tal 2.96ms from Rio de Janeiro, BR
115.71.42.13 AS45996 DAOU TECHNOLOGY 0.99ms from Seoul, KR
42.159.196.189 AS58593 Shanghai Blue Cloud Technology Co.,Ltd 1.95ms from Shanghai, CN
59.135.197.125 AS2516 KDDI CORPORATION 10.44ms from Tokyo, JP
118.238.17.253 AS2527 Sony Network Communications Inc. 1.17ms from Tokyo, JP
197.3.138.173 AS37705 TOPNET 2.15ms from Tunis, TN

Traceroute

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

$
traceroute -a -n -q1 -f4 137.189.29.253
traceroute to 137.189.29.253 (137.189.29.253): 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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