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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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
137.189.107.253 AS3661 The Chinese University of Hong Kong 1.62ms from Hong Kong, HK
123.255.67.253 AS3661 The Chinese University of Hong Kong 1.62ms from Hong Kong, HK
137.189.149.253 AS3661 The Chinese University of Hong Kong 1.86ms from Hong Kong, HK
137.189.157.73 AS3661 The Chinese University of Hong Kong 2.20ms from Hong Kong, HK
137.189.88.127 AS3661 The Chinese University of Hong Kong 1.22ms from Hong Kong, HK
203.188.64.26 AS3661 The Chinese University of Hong Kong 1.09ms from Hong Kong, HK
103.49.161.124 AS3661 The Chinese University of Hong Kong 1.37ms from Hong Kong, HK
137.189.4.175 AS3661 The Chinese University of Hong Kong 1.10ms from Hong Kong, HK
137.189.35.253 AS3661 The Chinese University of Hong Kong 1.49ms from Hong Kong, HK
137.189.168.253 AS3661 The Chinese University of Hong Kong 1.43ms from Hong Kong, HK
137.189.143.253 AS3661 The Chinese University of Hong Kong 1.81ms from Hong Kong, HK
137.189.84.121 AS3661 The Chinese University of Hong Kong 2.40ms from Hong Kong, HK
137.189.46.106 AS3661 The Chinese University of Hong Kong 1.41ms from Hong Kong, HK
137.189.96.60 AS3661 The Chinese University of Hong Kong 1.11ms from Hong Kong, HK
137.189.59.132 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
137.189.175.252 AS3661 The Chinese University of Hong Kong 1.33ms from Hong Kong, HK
137.189.2.30 AS3661 The Chinese University of Hong Kong 1.64ms from Hong Kong, HK
137.189.10.5 AS3661 The Chinese University of Hong Kong 1.87ms from Hong Kong, HK
137.189.58.171 AS3661 The Chinese University of Hong Kong 1.17ms from Hong Kong, HK
137.189.139.253 AS3661 The Chinese University of Hong Kong 2.03ms from Hong Kong, HK
137.189.177.251 AS3661 The Chinese University of Hong Kong 4.38ms from Hong Kong, HK
137.189.67.253 AS3661 The Chinese University of Hong Kong 1.55ms from Hong Kong, HK
137.189.176.254 AS3661 The Chinese University of Hong Kong 1.34ms from Hong Kong, HK
137.189.68.83 AS3661 The Chinese University of Hong Kong 2.04ms 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
207.87.32.125 AS2828 Verizon Business 1.77ms from Ashburn, US
125.25.90.221 AS23969 TOT Public Company Limited 1.63ms from Bangkok, TH
222.243.181.125 AS4134 CHINANET-BACKBONE 2.52ms from Changsha, CN
207.250.179.125 AS3549 Level 3 Parent, LLC 0.52ms from Charlotte, US
209.55.82.45 AS16823 Nortex Communications Company 4.64ms from Dallas, US
66.232.207.61 AS30612 Eagle Communications, Inc. 3.83ms from Denver, US
91.2.101.77 AS3320 Deutsche Telekom AG 8.25ms from Frankfurt am Main, DE
120.84.127.205 AS17816 China Unicom IP network China169 Guangdong province 10.25ms from Guangzhou, CN
113.186.72.125 AS45899 VNPT Corp 5.83ms from Hanoi, VN
14.173.136.93 AS45899 VNPT Corp 1.94ms from Ho Chi Minh City, VN
169.212.2.13 AS4766 Korea Telecom 0.93ms from Incheon, KR
172.112.87.205 AS20001 Charter Communications Inc 4.81ms from Los Angeles, US
178.154.221.93 AS200350 Yandex.Cloud LLC 2.86ms from Moscow, RU
159.93.83.221 AS2875 Joint Institute for Nuclear Research 3.34ms from Moscow, RU
196.64.214.237 AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 3.03ms from Rabat, MA
212.30.30.109 AS8680 Sure (Guernsey) Limited 0.96ms from Saint Peter Port, GG
189.245.209.13 AS8151 UNINET 4.53ms from Santiago de Queretaro, MX
189.142.248.237 AS8151 UNINET 4.96ms from Santiago de Queretaro, MX
112.164.107.173 AS4766 Korea Telecom 5.71ms from Seoul, KR
31.7.160.253 AS42109 Viva Armenia CJSC 0.28ms from Yerevan, AM
86.53.154.253 AS3257 GTT Communications Inc. 0.40ms from Amsterdam, NL
80.133.78.125 AS3320 Deutsche Telekom AG 7.74ms from Frankfurt am Main, DE
187.213.215.61 AS8151 UNINET 0.97ms from Guadalajara, MX
218.54.201.173 AS9318 SK Broadband Co Ltd 0.81ms from Incheon, KR
88.218.202.93 AS136787 PacketHub S.A. 0.08ms from Lisbon, PT

Traceroute

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

$
traceroute -a -n -q1 137.189.134.253
traceroute to 137.189.134.253 (137.189.134.253): 64 hops max, 52 byte packets
1 [AS15169] 72.14.239.92 1.321 ms
2 [] 123.255.91.50 2.144 ms
3 *
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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