Autonomous System details

AS3661

The Chinese University of Hong Kong  ·  cuhk.edu.hk

Hong Kong

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

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
Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
IP Ranges API

WHOIS Details

Join for free to view WHOIS details › 

                                                ASHandle:       AS3661
                                                OrgID:          AS3661
                                                ASName:         AS3661
                                                ASNumber:       AS3661
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
Get this data and more with IPinfo's WHOIS product - effortless access to POCs, ORGs, and Networks, for actionable intelligence.
IP WHOIS API & Database

Hosted Domains

There are 69 domain names hosted across 53 IP addresses on this ASN.

Join for free to explore hosted domains ›
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

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.
Useful for Cybersecurity
Hosted Domains API & Database

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
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
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
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Downstreams

There are no downstreams for this ASN.

Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Pingable IPs

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

IP Address ASN Details
103.49.160.193 AS3661 The Chinese University of Hong Kong 1.16ms from Hong Kong, HK
137.189.89.231 AS3661 The Chinese University of Hong Kong 1.11ms from Hong Kong, HK
137.189.151.253 AS3661 The Chinese University of Hong Kong 1.66ms from Hong Kong, HK
137.189.126.253 AS3661 The Chinese University of Hong Kong 1.17ms from Hong Kong, HK
137.189.241.252 AS3661 The Chinese University of Hong Kong 1.35ms from Hong Kong, HK
137.189.161.124 AS3661 The Chinese University of Hong Kong 1.33ms from Hong Kong, HK
137.189.70.252 AS3661 The Chinese University of Hong Kong 1.34ms from Hong Kong, HK
137.189.46.137 AS3661 The Chinese University of Hong Kong 1.30ms from Hong Kong, HK
137.189.160.126 AS3661 The Chinese University of Hong Kong 1.26ms from Hong Kong, HK
137.189.10.49 AS3661 The Chinese University of Hong Kong 1.88ms from Hong Kong, HK
137.189.147.253 AS3661 The Chinese University of Hong Kong 1.72ms from Hong Kong, HK
137.189.136.253 AS3661 The Chinese University of Hong Kong 1.72ms from Hong Kong, HK
137.189.171.252 AS3661 The Chinese University of Hong Kong 1.27ms from Hong Kong, HK
123.255.65.252 AS3661 The Chinese University of Hong Kong 1.32ms from Hong Kong, HK
137.189.86.253 AS3661 The Chinese University of Hong Kong 1.34ms from Hong Kong, HK
137.189.243.3 AS3661 The Chinese University of Hong Kong 1.26ms from Hong Kong, HK
137.189.59.253 AS3661 The Chinese University of Hong Kong 1.38ms from Hong Kong, HK
137.189.127.253 AS3661 The Chinese University of Hong Kong 1.39ms from Hong Kong, HK
137.189.82.253 AS3661 The Chinese University of Hong Kong 1.36ms from Hong Kong, HK
137.189.185.253 AS3661 The Chinese University of Hong Kong 1.38ms from Hong Kong, HK
137.189.135.253 AS3661 The Chinese University of Hong Kong 1.76ms from Hong Kong, HK
137.189.193.250 AS3661 The Chinese University of Hong Kong 1.11ms from Hong Kong, HK
137.189.102.252 AS3661 The Chinese University of Hong Kong 1.33ms from Hong Kong, HK
175.159.224.254 AS3661 The Chinese University of Hong Kong 1.90ms from Hong Kong, HK
137.189.175.253 AS3661 The Chinese University of Hong Kong 1.35ms 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
20.242.193.221 AS8075 Microsoft Corporation 0.62ms from Ashburn, US
84.192.135.45 AS6848 Telenet BV 5.63ms from Brussels, BE
87.49.57.13 AS3292 TDC Holding A/S 1.06ms from Copenhagen, DK
68.51.158.189 AS7922 Comcast Cable Communications, LLC 12.83ms from Flint, US
176.72.136.237 AS1759 Telia Finland Oyj 3.86ms from Helsinki, FI
154.66.66.125 AS36985 Global Micro Solutions 0.14ms from Johannesburg, ZA
161.22.78.125 AS21351 Canal + Telecom SAS 19.43ms from Le Lamentin, MQ
71.95.177.93 AS20115 Charter Communications LLC 4.64ms from Los Angeles, US
95.64.171.61 AS8359 MTS PJSC 1.39ms from Moscow, RU
61.177.131.77 AS4134 CHINANET BACKBONE 3.41ms from Nanjing, CN
180.125.206.45 AS4134 CHINANET BACKBONE 4.51ms from Nanjing, CN
61.175.135.125 AS4134 CHINANET BACKBONE 7.03ms from Ningbo, CN
66.189.160.141 AS20115 Charter Communications LLC 0.68ms from Redding, US
177.64.47.93 AS28573 Claro NXT Telecomunicacoes Ltda 6.96ms from Sao Paulo, BR
17.253.118.173 AS6185 Apple Inc. 0.15ms from Singapore, SG
183.201.235.237 AS132510 IDC ShanXi China Mobile communications corporation 2.54ms from Taiyuan, CN
112.5.69.125 AS9808 China Mobile Communications Group Co., Ltd. 1.48ms from Xiamen, CN
46.176.224.45 AS3329 Vodafone-panafon Hellenic Telecommunications Company SA 1.45ms from Athens, GR
35.89.32.205 AS16509 Amazon.com, Inc. 0.34ms from Boardman, US
70.185.95.61 AS22773 Cox Communications Inc. 11.36ms from Dallas, US
63.182.123.13 AS16509 Amazon.com, Inc. 0.34ms from Frankfurt am Main, DE
223.122.74.157 AS137872 China Mobile Hong Kong Company Limited 2.60ms from Hong Kong, HK
76.142.74.189 AS7922 Comcast Cable Communications, LLC 6.79ms from Houston, US
125.242.85.189 AS17858 LG POWERCOMM 1.89ms from Incheon, KR
175.203.183.205 AS4766 Korea Telecom 4.81ms from Incheon, KR

Traceroute

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

$
traceroute -a -n -q1 -f3 -m9 137.189.30.198
traceroute to 137.189.30.198 (137.189.30.198): 9 hops max, 52 byte packets
4 [AS8966] 194.170.186.3 119.987 ms
5 [] 123.255.91.50 166.719 ms
6 [AS3661] 137.189.192.250 188.513 ms
7 *
8 *
9 *
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.

Data built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales
IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs