175.159.200.0/21

AS4158 · City University of Hong Kong

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Summary

Country	Hong Kong
Domain	cityu.edu.hk
ASN	AS4158
Registry	APNIC
ID	CITYU-HK

WHOIS Details

inetnum:        175.159.200.0 - 175.159.207.255
netname:        CITYU-HK
descr:          City University of Hong Kong
descr:          Tat Chee Avenue, Kowloon
country:        HK
admin-c:        CK273-AP
tech-c:         CK273-AP
status:         ASSIGNED NON-PORTABLE
mnt-by:         MAINT-JUCC-AP
mnt-lower:      MAINT-HK-CITY-UNI
changed:        cwy@cc.hku.hk 20100419
source:         APNIC

person:         Chi Yuen Kwok
nic-hdl:        CK273-AP
e-mail:         cccykwok@cityu.edu.hk
address:        City University of Hong Kong
address:        83 Tat Chee Avenue
address:        Kowloon
address:        Hong Kong
phone:          +852-34426253
fax-no:         +852-27888281
country:        HK
changed:        cwy@cc.hku.hk 20040504
mnt-by:         MAINT-HK-CITY-UNI
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 175.159.0.0/16

Range	ASN	Company	Num of IPs
175.159.0.0/19	AS4616	The Hong Kong Polytechnic University	8,192
175.159.96.0/19	AS3363	The Hong Kong University of Science and Technology	8,192
175.159.64.0/19	AS4158	City University of Hong Kong	8,192
175.159.192.0/21	AS4616	The Hong Kong Polytechnic University	2,048
175.159.216.0/21	AS17764	The Hong Kong Metropolitan University	2,048
175.159.144.0/21	AS4605	Hong Kong Baptist University	2,048
175.159.228.0/22	AS4616	The Hong Kong Polytechnic University	1,024
175.159.240.0/22	AS3363	The Hong Kong University of Science and Technology	1,024
175.159.224.0/22	AS3661	The Chinese University of Hong Kong	1,024
175.159.208.0/22	AS4158	City University of Hong Kong	1,024
175.159.212.0/22	AS4528	The University of Hong Kong	1,024
175.159.152.0/22	AS4605	Hong Kong Baptist University	1,024
175.159.156.0/23	AS4605	Hong Kong Baptist University	512

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
5.195.150.245	AS5384 Emirates Internet	`11.01ms` from Al Fujairah City, AE
162.247.69.197	AS22319 Fogo Data Centers	`2.97ms` from Atlanta, US
179.62.36.133	AS27983 Red Intercable Digital S.A.	`12.18ms` from Buenos Aires, AR
104.168.53.165	AS36352 HostPapa	`0.10ms` from Buffalo, US
104.62.41.53	AS7018 AT&T Enterprises, LLC	`9.97ms` from Columbus, US
59.183.21.37	AS9829 National Internet Backbone	`7.61ms` from Delhi, IN
73.115.42.85	AS7922 Comcast Cable Communications, LLC	`6.04ms` from Houston, US
66.173.1.5	AS4181 TDS TELECOM	`1.21ms` from Minneapolis, US
212.74.214.5	AS21365 MTS PJSC	`4.31ms` from Novosibirsk, RU
158.247.221.149	AS20473 The Constant Company, LLC	`0.18ms` from Seoul, KR
210.91.215.69	AS4766 Korea Telecom	`5.53ms` from Seoul, KR
3.27.51.69	AS16509 Amazon.com, Inc.	`0.10ms` from Sydney, AU
221.180.11.213	AS56042 China Mobile communications corporation	`3.21ms` from Taiyuan, CN
20.194.218.133	AS8075 Microsoft Corporation	`0.15ms` from Tokyo, JP
142.112.193.133	AS577 Bell Canada	`6.05ms` from Toronto, CA
41.228.219.117	AS37693 OOREDOO TUNISIE SA	`8.39ms` from Tunis, TN
79.130.95.181	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`5.58ms` from Athens, GR
123.124.118.5	AS4808 China Unicom Beijing Province Network	`2.81ms` from Beijing, CN
35.86.178.21	AS16509 Amazon.com, Inc.	`0.54ms` from Boardman, US
68.86.224.117	AS7922 Comcast Cable Communications, LLC	`0.81ms` from Boston, US
124.229.6.181	AS4134 CHINANET-BACKBONE	`5.40ms` from Changsha, CN
24.199.232.5	AS11426 Charter Communications Inc	`4.24ms` from Charlotte, US
75.117.255.53	AS7029 Windstream Communications LLC	`17.31ms` from Chicago, US
13.234.214.229	AS16509 Amazon.com, Inc.	`0.12ms` from Mumbai, IN
180.169.233.133	AS4812 China Telecom (Group)	`3.20ms` from Shanghai, CN

Traceroute

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

traceroute -a -n -q1 -f6 -m11 175.159.207.76

traceroute to 175.159.207.76 (175.159.207.76): 11 hops max, 52 byte packets

6 [AS16509] 52.93.157.251 11.327 ms

7 [AS16509] 13.248.55.131 1.183 ms

8 [AS4158] 144.214.138.1 2.554 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On December 6th 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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