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

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

IP Address ASN Details
137.189.15.252 AS3661 The Chinese University of Hong Kong 1.47ms from Hong Kong, HK
137.189.62.212 AS3661 The Chinese University of Hong Kong 1.98ms from Hong Kong, HK
137.189.196.80 AS3661 The Chinese University of Hong Kong 1.76ms from Hong Kong, HK
137.189.79.253 AS3661 The Chinese University of Hong Kong 1.43ms from Hong Kong, HK
137.189.150.253 AS3661 The Chinese University of Hong Kong 1.69ms from Hong Kong, HK
123.255.67.253 AS3661 The Chinese University of Hong Kong 1.62ms from Hong Kong, HK
137.189.63.252 AS3661 The Chinese University of Hong Kong 1.38ms from Hong Kong, HK
137.189.94.175 AS3661 The Chinese University of Hong Kong 1.29ms from Hong Kong, HK
137.189.9.124 AS3661 The Chinese University of Hong Kong 1.33ms 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
137.189.136.253 AS3661 The Chinese University of Hong Kong 1.90ms from Hong Kong, HK
137.189.142.253 AS3661 The Chinese University of Hong Kong 1.76ms from Hong Kong, HK
137.189.65.252 AS3661 The Chinese University of Hong Kong 1.50ms from Hong Kong, HK
137.189.185.252 AS3661 The Chinese University of Hong Kong 1.43ms from Hong Kong, HK
137.189.126.189 AS3661 The Chinese University of Hong Kong 1.33ms from Hong Kong, HK
137.189.4.175 AS3661 The Chinese University of Hong Kong 1.10ms from Hong Kong, HK
137.189.81.253 AS3661 The Chinese University of Hong Kong 1.35ms from Hong Kong, HK
137.189.86.254 AS3661 The Chinese University of Hong Kong 1.32ms from Hong Kong, HK
123.255.65.252 AS3661 The Chinese University of Hong Kong 1.25ms from Hong Kong, HK
137.189.127.253 AS3661 The Chinese University of Hong Kong 1.41ms from Hong Kong, HK
137.189.184.247 AS3661 The Chinese University of Hong Kong 1.44ms from Hong Kong, HK
137.189.76.252 AS3661 The Chinese University of Hong Kong 1.32ms from Hong Kong, HK
137.189.27.253 AS3661 The Chinese University of Hong Kong 1.52ms from Hong Kong, HK
137.189.89.231 AS3661 The Chinese University of Hong Kong 1.36ms 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
70.108.2.141 AS701 Verizon Business 3.06ms from Ashburn, US
76.145.48.237 AS7922 Comcast Cable Communications, LLC 5.30ms from Atlanta, US
181.26.131.93 AS22927 Telefonica de Argentina 2.05ms from Buenos Aires, AR
221.236.243.221 AS4134 CHINANET BACKBONE 12.89ms from Chengdu, CN
3.21.61.141 AS16509 Amazon.com, Inc. 0.15ms from Columbus, US
93.161.44.13 AS3292 TDC Holding A/S 1.15ms from Copenhagen, DK
208.116.236.141 AS3257 GTT Communications Inc. 0.10ms from Dallas, US
4.31.12.109 AS3356 Level 3 Parent, LLC 0.38ms from Denver, US
98.243.122.13 AS7922 Comcast Cable Communications, LLC 7.36ms from Flint, US
63.182.123.13 AS16509 Amazon.com, Inc. 0.37ms from Frankfurt am Main, DE
14.229.19.29 AS45899 VNPT Corp 1.96ms from Hanoi, VN
125.166.166.189 AS7713 PT Telekomunikasi Indonesia 2.09ms from Jakarta, ID
86.173.20.237 AS2856 British Telecommunications PLC 9.17ms from London, GB
45.64.213.109 AS132933 Charotar Telelink Pvt Ltd 0.28ms from Mumbai, IN
69.127.205.205 AS6128 Cablevision Systems Corp. 8.01ms from New York City, US
138.59.200.29 AS264126 SIX INTERNET LTDA 5.55ms from Osasco, BR
3.38.84.141 AS16509 Amazon.com, Inc. 0.71ms from Seoul, KR
218.144.247.157 AS4766 Korea Telecom 4.86ms from Seoul, KR
84.17.52.93 AS212238 Datacamp Limited 0.08ms from Zuerich, CH
12.78.98.173 AS7018 AT&T Enterprises, LLC 0.69ms from Atlanta, US
207.250.179.125 AS3549 Level 3 Parent, LLC 0.52ms from Charlotte, US
98.17.9.77 AS7029 Windstream Communications LLC 14.38ms from Chicago, US
87.49.57.13 AS3292 TDC Holding A/S 1.06ms from Copenhagen, DK
104.252.227.13 AS25893 Wattage Hosting, LLC 0.25ms from Dallas, US
73.158.47.173 AS7922 Comcast Cable Communications, LLC 6.63ms from Fremont, US

Traceroute

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

$
traceroute -a -n -q1 -m12 137.189.137.38
traceroute to 137.189.137.38 (137.189.137.38): 12 hops max, 52 byte packets
5 *
6 *
7 *
8 *
9 [AS3661] 137.189.192.250 288.311 ms
10 *
11 *
12 *
Measurement taken from IPinfo ProbeNet in Abidjan, CI
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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