172.81.100.0/23

AS140227 · Hong Kong Communications International Co., Limited

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Summary

Country	Hong Kong
Domain	udc.hk
ASN	AS140227
Registry	ARIN
ID	UDC

WHOIS Details

NetHandle:      NET-172-81-100-0-1
OrgID:          C10485173
Parent:         NET-172-81-96-0-1
NetName:        UDC
NetRange:       172.81.100.0 - 172.81.101.255
NetType:        reassignment
RegDate:        2023-11-30
Updated:        2023-11-30
Source:         ARIN


OrgID:          C10485173
OrgName:        Hong Kong Communications International Co., Limited
CanAllocate:    
Street:         FLAT B, 23/F, TOWER 2, 873 LAI CHI KOK ROAD, ONE WEST KOWLOON, CHEUNG SHA WAN
City:           KOWLOON
State/Prov:     
Country:        HK
PostalCode:     
RegDate:        2023-11-30
Updated:        2023-11-30
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 172.81.0.0/16

Range	ASN	Company	Num of IPs
172.81.192.0/18	AS45090	Tencent Cloud Computing (Beijing) Co., Ltd	16,384
172.81.64.0/20	AS32592	Uniti Fiber Holdings Inc.	4,096
172.81.160.0/20	AS14265	TPx Communications	4,096
172.81.64.0/20	AS13760	Uniti Fiber Holdings Inc.	4,096
172.81.120.0/21	AS21859	Zenlayer Inc	2,048
172.81.176.0/21	AS394745	Lunanode Hosting Inc.	2,048
172.81.176.0/21	AS394745	Lunanode Hosting Inc.	2,048
172.81.176.0/21	AS174	Lunanode Hosting Inc.	2,048
172.81.176.0/21	AS174	Lunanode Hosting Inc.	2,048
172.81.16.0/22	AS18519	MTC Technologies	1,024
172.81.24.0/22	AS19528	QUESTHOST.COM, LLC	1,024
172.81.4.0/22	AS30417	BTIG LLC	1,024
172.81.188.0/22	AS32354	Unwired	1,024
172.81.140.0/22	AS36498	Access One Inc.	1,024
172.81.52.0/22	AS396107	Southern Broadband, LLC	1,024
172.81.20.0/22	AS399091	Inter Data Link Inc	1,024
172.81.28.0/22	AS399194	Satronics Satellites Sales and Service	1,024
172.81.32.0/22	AS17303	Netwire	1,024
172.81.116.0/22	AS54641	InMotion Hosting, Inc.	1,024
172.81.152.0/22	AS54858	Wave Broadband	1,024
172.81.148.0/22	AS1097	Sardis Telecom	1,024
172.81.156.0/22	AS14265	TPx Communications	1,024
172.81.38.0/23	AS397095	Setson LLC	512
172.81.8.0/24	AS7819	Ark Network, Inc.	256
172.81.139.0/24	AS16509	Greenway Health, LLC	256
172.81.144.0/24	AS212238	bvoip	256
172.81.145.0/24	AS212238	bvoip	256
172.81.146.0/24	AS212238	bvoip	256
172.81.147.0/24	AS212238	bvoip	256
172.81.127.0/24	AS21859	ZENLA-1	256
172.81.127.0/24	AS21859	ZENLA-1	256
172.81.128.0/24	AS27176	DataWagon, LLC	256
172.81.129.0/24	AS27176	DataWagon, LLC	256
172.81.131.0/24	AS27176	DataWagon, LLC	256
172.81.134.0/24	AS27176	DataWagon, LLC	256
172.81.135.0/24	AS27176	DataWagon, LLC	256
172.81.4.0/24	AS30417	BTIG LLC	256
172.81.75.0/24	AS36730	Transformyx, Inc.	256
172.81.36.0/24	AS399218	R B & W CORPORATION OF CANADA	256
172.81.57.0/24	AS399275	SOLID-PHOENIX	256
172.81.59.0/24	AS399275	SOLID SYSTEMS LLC	256
172.81.9.0/24	AS46480	Pekin Insurance	256
172.81.127.0/24	AS62610	ZENLA-1	256
172.81.127.0/24	AS62610	ZENLA-1	256
172.81.37.0/24	AS62943	DataTenant, LLC	256

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

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

IP Address	ASN	Details
172.81.101.255	AS140227 Hong Kong Communications International Co., Limited	`2.14ms` from Hong Kong, HK
172.81.100.7	AS140227 Hong Kong Communications International Co., Limited	`0.55ms` 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
141.148.228.39	AS31898 Oracle Corporation	`0.15ms` from Amsterdam, NL
217.27.233.199	AS35467 DDFR IT Infra & Security B.V.	`3.36ms` from Amsterdam, NL
48.222.194.167	AS8075 Microsoft Corporation	`1.98ms` from Amsterdam, NL
43.175.180.23	AS139341 ACE	`1.02ms` from Bangkok, TH
91.52.2.151	AS3320 Deutsche Telekom AG	`2.49ms` from Berlin, DE
178.143.152.183	AS15962 Orange Slovensko a.s.	`9.16ms` from Bratislava, SK
35.226.240.55	AS396982 Google LLC	`0.39ms` from Council Bluffs, US
93.239.199.55	AS3320 Deutsche Telekom AG	`3.49ms` from Duesseldorf, DE
117.5.207.247	AS7552 Viettel Group	`2.44ms` from Hanoi, VN
60.14.18.119	AS4837 CHINA UNICOM China169 Backbone	`5.58ms` from Harbin, CN
112.159.104.151	AS17858 LG POWERCOMM	`1.60ms` from Incheon, KR
58.127.248.103	AS9318 SK Broadband Co Ltd	`1.63ms` from Incheon, KR
2.139.161.39	AS3352 TELEFONICA DE ESPANA S.A.U.	`3.56ms` from Madrid, ES
73.54.76.23	AS7922 Comcast Cable Communications, LLC	`3.95ms` from Miami, US
195.222.74.135	AS42772 Unitary enterprise A1	`1.00ms` from Minsk, BY
218.131.105.7	AS17676 SoftBank Corp.	`4.29ms` from Osaka, JP
34.193.5.119	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
18.235.95.23	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
115.5.225.71	AS4766 Korea Telecom	`1.82ms` from Seoul, KR
141.237.178.135	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`5.06ms` from Sofia, BG
219.69.50.103	AS9416 Hoshin Multimedia Center Inc.	`5.03ms` from Taipei, TW
35.72.172.7	AS16509 Amazon.com, Inc.	`0.20ms` from Tokyo, JP
153.226.234.103	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.45ms` from Tokyo, JP
61.210.165.215	AS55374 FUJITSU LIMITED	`3.79ms` from Tokyo, JP
91.149.209.167	AS198401 Geckonet Sp. z o. o.	`6.43ms` from Warsaw, PL

Traceroute

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

traceroute -a -n -q1 -f4 172.81.100.8

traceroute to 172.81.100.8 (172.81.100.8): 64 hops max, 52 byte packets

4 [AS3491] 63.220.203.45 0.403 ms

5 *

6 *

7 *

8 [AS140227] 172.81.100.8 1.907 ms

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On February 7th 2026

What are IP address ranges?

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