45.121.201.0/24

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:        45.121.201.0 - 45.121.201.255
netname:        UDOMAIN-HK
descr:          UDomain Web Hosting Company Ltd
country:        HK
admin-c:        NA724-AP
tech-c:         NA724-AP
abuse-c:        AU302-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-NEWSKY-AP
mnt-irt:        IRT-UDOMAIN-HK1
last-modified:  2022-01-05T13:14:16Z
source:         APNIC

irt:            IRT-UDOMAIN-HK1
address:        Unit A - D, 6th Floor,Wing Cheung Industrial Building, No. 109 How Ming Street, Kwun Tong, Kowloon.
e-mail:         support@udomain.com.hk
abuse-mailbox:  support@udomain.com.hk
admin-c:        NA724-AP
tech-c:         NA724-AP
auth:           # Filtered
remarks:        support@udomain.com.hk is invalid
mnt-by:         MAINT-NEWSKY-AP
last-modified:  2025-08-22T22:56:41Z
source:         APNIC

role:           ABUSE UDOMAINHK1
country:        ZZ
address:        Unit A - D, 6th Floor,Wing Cheung Industrial Building, No. 109 How Ming Street, Kwun Tong, Kowloon.
phone:          +000000000
e-mail:         support@udomain.com.hk
admin-c:        NA724-AP
tech-c:         NA724-AP
nic-hdl:        AU302-AP
remarks:        Generated from irt object IRT-UDOMAIN-HK1
remarks:        support@udomain.com.hk is invalid
abuse-mailbox:  support@udomain.com.hk
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-22T22:58:59Z
source:         APNIC

role:           Network 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:        NO138-AP
tech-c:         NO138-AP
nic-hdl:        NA724-AP
mnt-by:         MAINT-NEWSKY-AP
last-modified:  2019-06-17T09:29:05Z
source:         APNIC

route:          45.121.201.0/24
origin:         AS23881
descr:          New Sky Internet Limited Unit A-D, 6th Floor, Wing Cheung Industrial Building, No. 109 How Ming Street,
mnt-by:         MAINT-NEWSKY-AP
last-modified:  2020-01-06T15:02:05Z
source:         APNIC

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

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

IP Address	ASN	Details
45.121.201.124	AS23881 UDomain Web Hosting Company Ltd	`0.14ms` from Amsterdam, NL

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
181.234.17.184	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`9.10ms` from Bogota, CO
200.175.133.8	AS18881 TELEFÔNICA BRASIL S.A	`1.46ms` from Brasilia, BR
217.60.109.120	AS48678 PENTECH BILISIM TEKNOLOJILERI SANAYI VE TICARET LIMITED SIRKETi	`0.15ms` from Bursa, TR
103.117.176.40	AS148992 THINGS OF INDIA (OPC) PRIVATE LIMITED	`19.54ms` from Delhi, IN
54.72.225.200	AS16509 Amazon.com, Inc.	`0.19ms` from Dublin, IE
84.180.52.120	AS3320 Deutsche Telekom AG	`2.10ms` from Duesseldorf, DE
202.181.25.8	AS55933 Cloudie Limited	`1.37ms` from Hong Kong, HK
84.65.195.152	AS5378 Vodafone Limited	`6.78ms` from London, GB
111.233.254.168	AS10013 FreeBit Co.,Ltd.	`3.36ms` from Tokyo, JP
5.74.79.88	AS58224 Iran Telecommunication Company PJS	`17.69ms` from Yerevan, AM
88.84.23.136	AS41549 Elektrizitaets- und Wasserwerk der Stadt Buchs SG	`6.07ms` from Zuerich, CH
20.228.193.120	AS8075 Microsoft Corporation	`0.45ms` from Ashburn, US
47.72.149.168	AS9500 One New Zealand Group Limited	`3.72ms` from Auckland, NZ
24.12.220.120	AS7922 Comcast Cable Communications, LLC	`5.84ms` from Chicago, US
35.226.87.88	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
88.248.187.248	AS9121 Turk Telekomunikasyon Anonim Sirketi	`14.28ms` from Istanbul, TR
169.255.253.104	AS327897 ATEC Systems and Technologies PTY LTD	`0.79ms` from Johannesburg, ZA
88.7.48.8	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.94ms` from Madrid, ES
162.206.182.56	AS7018 AT&T Enterprises, LLC	`2.87ms` from Miami, US
79.40.213.24	AS3269 Telecom Italia S.p.A.	`3.74ms` from Milan, IT
31.198.141.136	AS3269 Telecom Italia S.p.A.	`5.29ms` from Milan, IT
187.15.209.120	AS7738 V tal	`14.99ms` from Muriae, BR
60.45.54.152	AS4713 NTT Communications Corporation	`18.27ms` from Osaka, JP
123.128.77.168	AS4837 CHINA UNICOM China169 Backbone	`6.75ms` from Qingdao, CN
3.95.33.40	AS14618 Amazon.com, Inc.	`0.37ms` from Reston, 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 45.121.201.254

traceroute to 45.121.201.254 (45.121.201.254): 64 hops max, 52 byte packets

2 [] 84.17.33.138 0.152 ms

3 [AS23881] 45.121.201.254 0.167 ms

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On August 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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