172.81.102.0/24

AS400618 · Prime Security Corp.

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Summary

Country	Hong Kong
Domain	ctcsci.com
ASN	AS400618
Registry	ARIN
ID	CTCSCI

WHOIS Details

NetHandle:      NET-172-81-102-0-1
OrgID:          C10193917
Parent:         NET-172-81-96-0-1
NetName:        CTCSCI
NetRange:       172.81.102.0 - 172.81.103.255
NetType:        reassignment
RegDate:        2023-09-25
Updated:        2023-11-30
Source:         ARIN


OrgID:          C10193917
OrgName:        CTCSCI TECH LIMITED
CanAllocate:    
Street:         RM 023, 9/F BLK G KWAI SHING IND BLDG, 42-46
Street:         TAI LIN PAI RD, KWAI CHUNG
City:           New Territories
State/Prov:     
Country:        HK
PostalCode:     
RegDate:        2023-09-25
Updated:        2023-09-25
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
172.81.100.0/23	AS140227	Hong Kong Communications International Co., Limited	512
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 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
172.81.102.233	xiafeng.me	1
172.81.102.80	tlany.link	1

Hosted domains API

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Pingable IPs

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

IP Address	ASN	Details
172.81.102.1	AS400618 Prime Security Corp.	`0.80ms` from Tokyo, JP

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
162.234.44.24	AS7018 AT&T Enterprises, LLC	`13.27ms` from Atlanta, US
171.5.15.248	AS45758 Triple T Broadband Public Company Limited	`11.59ms` from Bangkok, TH
85.214.186.24	AS6724 Strato GmbH	`0.51ms` from Berlin, DE
93.92.59.200	AS44651 Kalasznet Kabel TV Kft	`0.85ms` from Budapest, HU
223.31.19.56	AS9583 Sify Limited	`1.13ms` from Chennai, IN
69.23.79.248	AS10796 Charter Communications Inc	`13.58ms` from Chicago, US
62.183.254.200	AS16086 DNA Oyj	`5.23ms` from Helsinki, FI
47.113.199.40	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.37ms` from Heyuan, CN
154.92.98.40	AS135097 LUOGELANG (FRANCE) LIMITED	`0.58ms` from Hong Kong, HK
70.153.131.40	AS8075 Microsoft Corporation	`0.15ms` from Jakarta, ID
86.11.211.216	AS5089 Virgin Media Limited	`8.61ms` from London, GB
90.201.170.8	AS5607 Sky UK Limited	`12.81ms` from London, GB
59.83.197.40	AS4837 CHINA UNICOM China169 Backbone	`3.20ms` from Nanjing, CN
32.223.118.56	AS46690 Southern New England Telephone Company and SNET America, Inc.	`5.05ms` from New York City, US
65.174.169.136	AS4972 UNITED PARCEL SERVICE	`3.06ms` from New York City, US
212.17.7.8	AS25549 JSC Avantel	`1.49ms` from Novosibirsk, RU
83.108.230.8	AS2119 Telenor Norge AS	`5.62ms` from Oslo, NO
220.127.98.24	AS4766 Korea Telecom	`2.21ms` from Seoul, KR
212.47.217.168	AS3327 CITIC Telecom CPC Netherlands B.V.	`0.29ms` from Tallinn, EE
95.105.230.24	AS15962 Orange Slovensko a.s.	`1.32ms` from Bratislava, SK
59.100.102.248	AS2764 AAPT Limited	`0.82ms` from Brisbane, AU
95.129.101.184	AS24641 FASTER CZ spol. s r.o.	`0.35ms` from Brno, CZ
156.222.160.56	AS8452 TE-AS	`3.71ms` from Cairo, EG
184.16.114.200	AS5650 Frontier Communications of America, Inc.	`9.19ms` from Chicago, US
73.103.229.104	AS7922 Comcast Cable Communications, LLC	`12.82ms` from Chicago, US

Traceroute

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

traceroute -a -n -q1 -f5 172.81.102.119

traceroute to 172.81.102.119 (172.81.102.119): 64 hops max, 52 byte packets

5 [] 210.173.177.149 0.272 ms

6 *

7 [AS400618] 172.81.102.119 0.93 ms

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On March 20th 2026

What are IP address ranges?

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