45.121.192.0/24

AS23881 · UDomain Web Hosting Company Ltd

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

Summary

Country	Hong Kong
Domain	udomain.hk
ASN	AS23881
Registry	APNIC
ID	UDOMAIN-HK

WHOIS Details

inetnum:        45.121.192.0 - 45.121.192.255
netname:        UDOMAIN-HK
descr:          UDomain Web Hosting Company Ltd
country:        HK
admin-c:        UA32-AP
tech-c:         UA32-AP
abuse-c:        AU97-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-HK-UDOMAIN
mnt-irt:        IRT-UDOMAIN-HK
last-modified:  2021-06-22T13:22:50Z
source:         APNIC

irt:            IRT-UDOMAIN-HK
address:        18/F, Kinox Centre, 9 Hung To Road, Hong Kong
address:        Hong Kong
e-mail:         report_abuse@udomain.hk
abuse-mailbox:  report_abuse@udomain.hk
admin-c:        UA32-AP
tech-c:         UA32-AP
auth:           # Filtered
remarks:        report_abuse@udomain.hk was validated on 2025-09-09
mnt-by:         MAINT-HK-UDOMAIN
last-modified:  2025-11-18T00:27:27Z
source:         APNIC

role:           ABUSE UDOMAINHK
country:        ZZ
address:        18/F, Kinox Centre, 9 Hung To Road, Hong Kong
address:        Hong Kong
phone:          +000000000
e-mail:         report_abuse@udomain.hk
admin-c:        UA32-AP
tech-c:         UA32-AP
nic-hdl:        AU97-AP
remarks:        Generated from irt object IRT-UDOMAIN-HK
remarks:        report_abuse@udomain.hk was validated on 2025-09-09
abuse-mailbox:  report_abuse@udomain.hk
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-09T04:13:00Z
source:         APNIC

role:           UDOMAIN ADMINISTRATORS
address:        Unit A - D, 6th Floor, Wing Cheung Industrial Building, No. 109 How Ming Street, Kwun Tong, Kowloon
country:        HK
phone:          +852 2554 7545
e-mail:         noc@udomain.hk
admin-c:        UN22-AP
tech-c:         UN22-AP
nic-hdl:        UA32-AP
mnt-by:         MAINT-HK-UDOMAIN
last-modified:  2017-10-16T08:26:03Z
source:         APNIC

route:          45.121.192.0/24
origin:         AS23881
descr:          UDomain Web Hosting Company Limited Unit A-D, 6th Floor, Wing Cheung Industrial Building, No. 109 How Ming Street, Kwun Tong, Kowloon.
mnt-by:         MAINT-HK-UDOMAIN
last-modified:  2018-10-08T07:07:33Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 45.121.0.0/16

Range	ASN	Company	Num of IPs
45.121.80.0/22	AS153494	UNIT 04 7/F BRIGHT WAY TOWER	1,024
45.121.84.0/22	AS18106	Viewqwest Pte Ltd	1,024
45.121.132.0/22	AS1851	Adelaide University	1,024
45.121.32.0/22	AS136908	Sky Broadband Pvt. Ltd	1,024
45.121.0.0/22	AS24186	RailTel Corporation is an Internet Service Provider.	1,024
45.121.148.0/22	AS2516	Mainz, LLC	1,024
45.121.48.0/22	AS31972	Xiang Ao Communications Co. Ltd.	1,024
45.121.36.0/22	AS45960	YTL Broadband Sdn. Bhd.	1,024
45.121.24.0/22	AS131429	Mobifone Corporation	1,024
45.121.236.0/22	AS132590	AKCTV Pte. Ltd.	1,024
45.121.160.0/22	AS56149	INCOM Company	1,024
45.121.20.0/22	AS56231	MEASAT Broadcast Network Systems Sdn. Bhd.	1,024
45.121.108.0/22	AS135214	THE SPEEDNET	1,024
45.121.56.0/22	AS153494	UNIT 17, 9TH FL OF TOWER A New,	1,024
45.121.104.0/22	AS12975	Palestine Telecommunications Company (PALTEL)	1,024
45.121.201.0/24	AS23881	UDomain Web Hosting Company Ltd	256
45.121.203.0/24	AS23881	UDomain Web Hosting Company Ltd	256
45.121.52.0/24	AS4847	Beijing Guanghuan newsletter network communication technology limited liability company	256
45.121.55.0/24	AS4847	Beijing Guanghuan newsletter network communication technology limited liability company	256
45.121.212.0/24	AS62610	Graha Telkomsigma	256
45.121.213.0/24	AS62610	Menara AIMS, Changkat Raja Chulan, 50200 Kuala Lumpur, Malaysia	256
45.121.214.0/24	AS62610	StarkenburgstraÃŸe 12, 64546 MÃ¶rfelden, Germany	256
45.121.33.0/24	AS136908	Sky Broadband Pvt. Ltd.	256
45.121.34.0/24	AS136908	Sky Broadband Pvt. Ltd.	256
45.121.35.0/24	AS136908	Sky Broadband Pvt. Ltd.	256
45.121.208.0/24	AS137409	Streamline Servers Ltd - Perth	256
45.121.209.0/24	AS137409	Streamline Servers Ltd - Melbourne	256
45.121.210.0/24	AS137409	Streamline Servers Ltd - Sydney	256
45.121.211.0/24	AS137409	Streamline Servers Ltd - Sydney	256
45.121.194.0/24	AS23881	UDomain Web Hosting Company Ltd	256
45.121.196.0/24	AS23881	UDomain Web Hosting Company Ltd	256
45.121.197.0/24	AS23881	UDomain Web Hosting Company Ltd	256
45.121.198.0/24	AS23881	UDomain Web Hosting Company Ltd	256
45.121.199.0/24	AS23881	UDomain Web Hosting Company Ltd	256
45.121.200.0/24	AS23881	UDomain Web Hosting Company Ltd	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
45.121.192.10	AS23881 UDomain Web Hosting Company Ltd	`0.57ms` 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
41.34.233.24	AS8452 TE-AS	`6.53ms` from Cairo, EG
97.139.173.8	AS6167 Verizon Business	`7.96ms` from Denver, US
90.254.70.248	AS5378 Vodafone Limited	`4.87ms` from Edinburgh, GB
116.26.10.200	AS4134 CHINANET-BACKBONE	`6.79ms` from Guangzhou, CN
154.194.189.120	AS139880 OWGELS INTERNATIONAL CO., LIMITED	`1.20ms` from Hong Kong, HK
124.53.21.184	AS17858 LG POWERCOMM	`5.62ms` from Incheon, KR
80.194.9.184	AS5089 Virgin Media Limited	`8.04ms` from London, GB
20.108.45.24	AS8075 Microsoft Corporation	`0.24ms` from London, GB
136.52.17.152	AS16591 Google Fiber Inc.	`1.71ms` from Los Angeles, US
76.93.158.40	AS20001 Charter Communications Inc	`6.22ms` from Los Angeles, US
167.37.249.104	AS25689 Shared Services Canada	`1.56ms` from Montreal, CA
125.4.37.136	AS9617 JCOM Co., Ltd.	`7.44ms` from Osaka, JP
98.207.80.152	AS7922 Comcast Cable Communications, LLC	`4.63ms` from San Jose, US
186.225.140.136	AS262761 Sinal Br Telecom Ltda	`0.35ms` from Sao Jose do Rio Preto, BR
183.100.232.232	AS4766 Korea Telecom	`1.73ms` from Seoul, KR
94.154.128.136	AS43647 SERVERCORE CIS LLC	`0.16ms` from Tashkent, UZ
98.82.205.152	AS14618 Amazon.com, Inc.	`0.51ms` from Ashburn, US
111.192.38.136	AS4808 China Unicom Beijing Province Network	`3.38ms` from Beijing, CN
52.89.22.184	AS16509 Amazon.com, Inc.	`0.19ms` from Boardman, US
79.207.30.56	AS3320 Deutsche Telekom AG	`1.37ms` from Duesseldorf, DE
51.38.177.56	AS16276 OVH SAS	`0.17ms` from Gravelines, FR
94.63.26.24	AS12353 Vodafone Portugal	`2.10ms` from Lisbon, PT
188.37.126.56	AS12353 Vodafone Portugal	`7.18ms` from Lisbon, PT
38.102.253.104	AS174 Cogent Communications, LLC	`2.16ms` from Los Angeles, US
66.191.39.136	AS20115 Charter Communications LLC	`3.25ms` from Los Angeles, US

Traceroute

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

traceroute -a -n -q1 -f2 45.121.192.6

traceroute to 45.121.192.6 (45.121.192.6): 64 hops max, 52 byte packets

2 [AS133752] 64.120.119.8 0.965 ms

3 [] 31.31.38.194 3.524 ms

4 [] 36.255.57.179 7.1 ms

5 *

6 *

7 *

8 *

9 [AS23881] 45.121.192.6 0.718 ms

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On March 13th 2026

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.

An API 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