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 79,229,371,440,083,952,222,718,656,512
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
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
137.189.97.18 ██████████ 3
137.189.89.51 ██████████ 3
137.189.76.60 ███████ 3
123.255.64.6 ██████████ 3
137.189.99.7 ██████████ 2
123.255.65.127 ██████████ 2
137.189.94.156 ██████████ 2
137.189.41.180 ███████ 2
137.189.91.192 ██████████ 2
137.189.164.2 ██████████ 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 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
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 3 upstreams for this ASN.

upstreams Name
AS3662 Joint Universities Computer Centre Limited
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

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

IP Address ASN Details
137.189.51.253 AS3661 The Chinese University of Hong Kong 1.11ms from Hong Kong, HK
137.189.240.253 AS3661 The Chinese University of Hong Kong 1.08ms from Hong Kong, HK
137.189.160.132 AS3661 The Chinese University of Hong Kong 0.99ms from Hong Kong, HK
137.189.83.125 AS3661 The Chinese University of Hong Kong 1.14ms from Hong Kong, HK
137.189.170.248 AS3661 The Chinese University of Hong Kong 1.28ms from Hong Kong, HK
137.189.35.69 AS3661 The Chinese University of Hong Kong 0.97ms from Hong Kong, HK
137.189.13.252 AS3661 The Chinese University of Hong Kong 1.05ms from Hong Kong, HK
137.189.63.254 AS3661 The Chinese University of Hong Kong 1.10ms from Hong Kong, HK
137.189.87.253 AS3661 The Chinese University of Hong Kong 1.15ms from Hong Kong, HK
137.189.161.60 AS3661 The Chinese University of Hong Kong 1.10ms from Hong Kong, HK
137.189.96.62 AS3661 The Chinese University of Hong Kong 0.95ms from Hong Kong, HK
137.189.56.254 AS3661 The Chinese University of Hong Kong 1.22ms from Hong Kong, HK
137.189.184.253 AS3661 The Chinese University of Hong Kong 1.15ms from Hong Kong, HK
137.189.164.2 AS3661 The Chinese University of Hong Kong 1.92ms from Hong Kong, HK
137.189.19.252 AS3661 The Chinese University of Hong Kong 1.05ms from Hong Kong, HK
137.189.14.99 AS3661 The Chinese University of Hong Kong 47.89ms from Huai'an, CN
137.189.90.247 AS3661 The Chinese University of Hong Kong 0.91ms from Hong Kong, HK
137.189.75.253 AS3661 The Chinese University of Hong Kong 1.02ms from Hong Kong, HK
137.189.65.253 AS3661 The Chinese University of Hong Kong 1.06ms from Hong Kong, HK
137.189.74.10 AS3661 The Chinese University of Hong Kong 1.03ms from Hong Kong, HK
137.189.92.252 AS3661 The Chinese University of Hong Kong 1.07ms from Hong Kong, HK
137.189.54.253 AS3661 The Chinese University of Hong Kong 1.24ms from Hong Kong, HK
137.189.134.253 AS3661 The Chinese University of Hong Kong 1.44ms from Hong Kong, HK
137.189.58.2 AS3661 The Chinese University of Hong Kong 0.89ms from Hong Kong, HK
137.189.88.127 AS3661 The Chinese University of Hong Kong 0.92ms 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
71.56.122.77 AS7922 Comcast Cable Communications, LLC 5.73ms from Atlanta, US
120.10.243.173 AS4837 CHINA UNICOM China169 Backbone 6.28ms from Beijing, CN
93.194.111.173 AS3320 Deutsche Telekom AG 3.80ms from Duesseldorf, DE
172.10.27.237 AS7018 AT&T Enterprises, LLC 5.43ms from Durham, US
178.200.85.253 AS3209 Vodafone GmbH 4.76ms from Frankfurt am Main, DE
91.65.27.253 AS3209 Vodafone GmbH 3.14ms from Hamburg, DE
43.155.98.205 AS132203 Tencent Building, Kejizhongyi Avenue 0.40ms from Hong Kong, HK
42.52.205.237 AS4837 CHINA UNICOM China169 Backbone 6.84ms from Liaoyang, CN
116.3.156.61 AS4837 CHINA UNICOM China169 Backbone 8.38ms from Liaoyang, CN
73.185.166.237 AS7922 Comcast Cable Communications, LLC 5.74ms from Minneapolis, US
191.221.85.189 AS8167 V tal 1.92ms from Novo Hamburgo, BR
87.160.39.125 AS3320 Deutsche Telekom AG 5.84ms from Nuernberg, DE
200.170.114.157 AS19182 TELEFÔNICA BRASIL S.A 4.60ms from Osasco, BR
13.37.214.237 AS16509 Amazon.com, Inc. 0.17ms from Paris, FR
52.4.180.205 AS14618 Amazon.com, Inc. 0.20ms from Reston, US
183.96.240.237 AS4766 Korea Telecom 1.24ms from Seoul, KR
176.221.156.253 AS35805 JSC "Silknet" 5.19ms from Tbilisi, GE
146.120.178.237 AS41124 BTcom Infocommunications Ltd. 1.26ms from Almaty, KZ
35.245.135.221 AS396982 Google LLC 0.13ms from Ashburn, US
67.208.190.61 AS46887 Crown Castle Fiber LLC 0.44ms from Boston, US
64.140.26.141 AS11915 TPx Communications 1.25ms from Dallas, US
34.107.101.109 AS396982 Google LLC 0.10ms from Frankfurt am Main, DE
161.52.15.173 AS43922 City of Malmo 3.90ms from Goeteborg, SE
51.178.79.13 AS16276 OVH SAS 0.07ms from Gravelines, FR
76.31.131.93 AS7922 Comcast Cable Communications, LLC 6.31ms from Houston, US

Traceroute

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

$
traceroute -a -n -q1 -f5 -m11 137.189.112.78
traceroute to 137.189.112.78 (137.189.112.78): 11 hops max, 52 byte packets
5 [AS3356] 4.68.110.250 7.839 ms
6 [AS3491] 63.223.31.218 161.672 ms
7 [AS3491] 63.218.254.86 161.679 ms
8 [AS3491] 209.9.115.46 163.899 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Bend, US
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