45.121.194.0/24

AS23881 · UDomain Web Hosting Company Ltd

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Summary

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

WHOIS Details

inetnum:        45.121.194.0 - 45.121.194.255
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:          45.121.194.0/24
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:  2018-10-08T07:07:35Z
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
45.121.192.0/24	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

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

IP Address	ASN	Details
45.121.194.8	AS23881 UDomain Web Hosting Company Ltd	`1.21ms` 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
73.174.16.136	AS7922 Comcast Cable Communications, LLC	`7.97ms` from Ashburn, US
186.39.24.40	AS22927 Telefonica de Argentina	`2.55ms` from Buenos Aires, AR
3.139.129.88	AS16509 Amazon.com, Inc.	`0.18ms` from Columbus, US
136.113.28.152	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
14.243.70.72	AS45899 VNPT Corp	`4.31ms` from Da Nang, VN
84.164.196.40	AS3320 Deutsche Telekom AG	`4.68ms` from Duesseldorf, DE
18.184.22.120	AS16509 Amazon.com, Inc.	`0.25ms` from Frankfurt am Main, DE
124.182.7.136	AS1221 Telstra Limited	`5.29ms` from Melbourne, AU
207.237.111.104	AS6079 RCN	`3.79ms` from New York City, US
86.234.149.120	AS3215 Orange S.A.	`14.67ms` from Paris, FR
218.150.3.8	AS4766 Korea Telecom	`5.06ms` from Seoul, KR
138.122.51.8	AS264328 Eclipse Telecom	`4.21ms` from Uberlandia, BR
20.121.195.168	AS8075 Microsoft Corporation	`0.49ms` from Ashburn, US
113.162.46.248	AS45899 VNPT Corp	`1.86ms` from Hanoi, VN
47.153.187.232	AS5650 Frontier Communications of America, Inc.	`2.24ms` from Los Angeles, US
170.24.135.120	AS23410 Nassau County BOCES	`1.58ms` from New York City, US
68.202.216.8	AS33363 Charter Communications, Inc	`9.06ms` from Orlando, US
222.4.235.8	AS2516 KDDI CORPORATION	`2.32ms` from Osaka, JP
186.72.91.200	AS11556 Cable & Wireless Panama	`0.71ms` from Panama, PA
52.47.151.184	AS16509 Amazon.com, Inc.	`0.17ms` from Paris, FR
159.0.222.88	AS25019 Saudi Telecom Company JSC	`2.48ms` from Riyadh, SA
138.226.28.152	AS3257 GTT Communications Inc.	`0.93ms` from San Jose, US
189.238.89.88	AS8151 UNINET	`16.39ms` from Santiago de Queretaro, MX
1.99.230.104	AS4766 Korea Telecom	`1.79ms` from Seoul, KR
45.128.198.248	AS137409 GSL Networks Pty LTD	`0.19ms` from Singapore, SG

Traceroute

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

traceroute -a -n -q1 -f4 45.121.194.1

traceroute to 45.121.194.1 (45.121.194.1): 64 hops max, 52 byte packets

4 [] 36.255.57.179 0.199 ms

5 *

6 *

7 *

8 [AS23881] 45.121.194.1 6.501 ms

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On December 28th 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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