1. All IP Ranges
  2. 103.0.0.0/8
  3. 103.15.0.0/16
  4. AS45910  | 103.15.21.0/24

103.15.21.0/24

AS45910  ·  i-System Technology Limited

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

Sign up for free ›

Summary

Country Hong Kong
Domain 01link.net
ASN AS45910
Registry APNIC
ID IDC-01-HK

WHOIS Details

inetnum:        103.15.21.0 - 103.15.21.255
netname:        IDC-01-HK
descr:          01Link Network Services Limited
country:        HK
admin-c:        NA296-AP
tech-c:         NA296-AP
abuse-c:        AI530-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-HK-ISYSTEMTECH
mnt-irt:        IRT-ISYSTEMTECH-HK
last-modified:  2022-04-14T01:56:48Z
source:         APNIC

irt:            IRT-ISYSTEMTECH-HK
address:        Tsuen Wan, Hong Kong
e-mail:         hostmaster@i-system.hk
abuse-mailbox:  hostmaster@i-system.hk
admin-c:        HM1244-AP
tech-c:         HM1244-AP
auth:           # Filtered
remarks:        hostmaster@i-system.hk was validated on 2025-08-12
mnt-by:         MAINT-HK-ISYSTEMTECH
last-modified:  2025-09-04T05:45:38Z
source:         APNIC

role:           ABUSE ISYSTEMTECHHK
country:        ZZ
address:        Tsuen Wan, Hong Kong
phone:          +000000000
e-mail:         hostmaster@i-system.hk
admin-c:        HM1244-AP
tech-c:         HM1244-AP
nic-hdl:        AI530-AP
remarks:        Generated from irt object IRT-ISYSTEMTECH-HK
remarks:        hostmaster@i-system.hk was validated on 2025-08-12
abuse-mailbox:  hostmaster@i-system.hk
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-12T22:55:19Z
source:         APNIC

role:           Network Administrator
address:        Hong Kong
country:        HK
phone:          +852-31065260
e-mail:         hostmaster@01link.net
admin-c:        NA296-AP
tech-c:         NA296-AP
nic-hdl:        NA296-AP
mnt-by:         MAINT-01LINK-HK
last-modified:  2012-08-14T08:20:16Z
source:         APNIC

route:          103.15.21.0/24
origin:         AS45910
descr:          01Link Network Services Limited
mnt-by:         MAINT-HK-ISYSTEMTECH
last-modified:  2022-04-13T23:52:01Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 103.15.0.0/16

Range ASN Company Num of IPs
103.15.108.0/22 AS2519 Neomet Aoyama BLDG.3F 2-7-13 Shibuya 1,024
103.15.144.0/22 AS58690 140 Srirachanakorn 1 Rd 1,024
103.15.0.0/22 AS9371 SAKURA Internet Inc. 1,024
103.15.148.0/22 AS17551 Anycast Holdings Pty Ltd 1,024
103.15.100.0/22 AS4628 Pacific Internet Pte Ltd 1,024
103.15.96.0/22 AS23724 Aliyun Computing Co., LTD 1,024
103.15.48.0/22 AS45538 Mat Bao Corp 1,024
103.15.152.0/22 AS56304 The Total Team Limited 1,024
103.15.184.0/22 AS2519 Green Net co ltd 1,024
103.15.116.0/22 AS15412 AMDIA Inc. 1,024
103.15.28.0/22 AS55639 Asia Web Services Ltd 1,024
103.15.80.0/22 AS140641 YOTTA NETWORK SERVICES PRIVATE LIMITED 1,024
103.15.244.0/22 AS58717 Summit Communications Ltd 1,024
103.15.204.0/22 AS24130 TPG Internet Pty Ltd. 1,024
103.15.228.0/22 AS132215 POWERGRID TELESERVICES LIMITED 1,024
103.15.188.0/22 AS17939 miyazaki cabletelevision network Co.,LTD 1,024
103.15.4.0/22 AS4859 JinCheng Information Center 1,024
103.15.252.0/22 AS24186 RailTel Corporation is an Internet Service Provider 1,024
103.15.156.0/23 AS151151 FLEXCLOUD SERVICES 512
103.15.94.0/23 AS63737 PTH INFORMATION TECHNOLOGY COMPANY LIMITED 512
103.15.92.0/23 AS18094 Tokyo Cable Network.,Inc. 512
103.15.88.0/23 AS150698 WIX CLOUD COMPANY LIMITED 512
103.15.90.0/23 AS45899 JUPITEK SOLUTION JOINT STOCK COMPANY 512
103.15.36.0/23 AS58499 CV TIKA UTAMA 512
103.15.238.0/23 AS58697 G/38 Qala e Mosa Shaheed Square , 512
103.15.236.0/23 AS152699 SHOCKBYTE-MEL-AU 512
103.15.222.0/23 AS149137 TAN THANH AN INTERNATIONAL TRADE DEVELOPMENT COMPANY LIMITED 512
103.15.126.0/23 AS55850 Mercury NZ Limited 512
103.15.224.0/23 AS58695 Unicef Bangladesh, 512
103.15.212.0/23 AS150336 D-Load Network 512
103.15.159.0/24 AS132378 MERINO INDUSTRIES LIMITED 256
103.15.122.0/24 AS38478 SunnyVision Limited Internet Service Provider, Hong Kong Room 604, WellTech Centre Pat Tat Street, San Po Kong 256
103.15.155.0/24 AS56304 The Total Team Limited 256
103.15.154.0/24 AS56304 The Total Team Limited 256
103.15.121.0/24 AS38478 SunnyVision Limited Internet Service Provider, Hong Kong Room 604, WellTech Centre Pat Tat Street, San Po Kong 256
103.15.104.0/24 AS55720 Hong Kong IDC 256
103.15.153.0/24 AS56304 The Total Team Limited 256
103.15.152.0/24 AS56304 The Total Team Limited 256
103.15.197.0/24 AS23881 UDomain Web Hosting Company Ltd 256
103.15.196.0/24 AS23881 UDomain Web Hosting Company Ltd 256
103.15.195.0/24 AS23881 UDomain Web Hosting Company Ltd 256
103.15.120.0/24 AS38478 SunnyVision Limited Internet Service Provider, Hong Kong Room 604, WellTech Centre Pat Tat Street, San Po Kong 256
103.15.103.0/24 AS4628 OSINet 256
103.15.194.0/24 AS23881 UDomain Web Hosting Company Ltd 256
103.15.192.0/24 AS23881 UDomain Web Hosting Company Ltd 256
103.15.142.0/24 AS132306 MOS 5 TEL LIMITED 256
103.15.183.0/24 AS23881 UDomain Web Hosting Co.Ltd 256
103.15.182.0/24 AS46844 UDomain Web Hosting Co.Ltd 256
103.15.141.0/24 AS58689 ICC Communication Ltd. 256
103.15.181.0/24 AS23881 UDomain Web Hosting Co.Ltd 256

Hosted domains

There are 507 domain names hosted across 21 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
103.15.21.10 richform.com.hk 178
103.15.21.30 novalisartdesign.com 158
103.15.21.20 mcgi.com.hk 126
103.15.21.110 cru-magazine.com 14
103.15.21.130 betterhongkong.com 10
103.15.21.111 hkiac.org 5
103.15.21.108 aliceng.com 2
103.15.21.107 ownaccount.org 2
103.15.21.104 dawn8888.live 1
103.15.21.129 smosportal.com 1
103.15.21.103 ehubdata.hk 1
103.15.21.112 gcds2025hk.com 1
103.15.21.116 intechdesign.com.hk 1
103.15.21.125 digitalive.hk 1
103.15.21.109 ihhqualitysummit2025.com 1
103.15.21.119 jecycle.com.hk 1
103.15.21.128 eaacihk2025.com 1
103.15.21.117 ptcog-ao2025.hk 1
103.15.21.118 peegaboo.online 1
103.15.21.21 1010-style.com 1

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

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

IP Address ASN Details
103.15.21.254 AS45910 i-System Technology Limited 1.54ms 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
5.89.50.104 AS30722 Vodafone Italia S.p.A. 5.40ms from Arezzo, IT
161.132.74.216 AS3132 Red Cientifica Peruana 0.32ms from Lima, PE
84.77.153.104 AS12479 Orange Espagne SA 9.34ms from Madrid, ES
68.113.255.152 AS20115 Charter Communications LLC 16.95ms from Minneapolis, US
157.167.94.200 AS44444 Forcepoint Cloud Ltd 0.68ms from Mumbai, IN
208.71.30.24 AS36687 WiLine Networks Inc. 1.39ms from Portland, US
151.1.142.184 AS3242 REEVO S.P.A. 9.37ms from Rende, IT
52.73.204.104 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
38.11.103.216 AS54600 PEG TECH INC 0.20ms from San Jose, US
106.12.79.136 AS38365 Beijing Baidu Netcom Science and Technology Co., Ltd. 6.95ms from Shanghai, CN
34.177.220.152 AS396982 Google LLC 0.46ms from Singapore, SG
61.211.13.88 AS2527 Sony Network Communications Inc. 2.99ms from Tokyo, JP
72.38.6.232 AS7992 Cogeco Connexion Inc. 6.83ms from Toronto, CA
20.81.152.40 AS8075 Microsoft Corporation 0.39ms from Boydton, US
176.68.98.136 AS1257 Tele2 Sverige AB 1.60ms from Copenhagen, DK
68.43.11.136 AS7922 Comcast Cable Communications, LLC 9.82ms from Flint, US
58.62.234.24 AS4134 CHINANET-BACKBONE 2.64ms from Guangzhou, CN
62.33.123.120 AS20485 Joint Stock Company TransTeleCom 5.28ms from Khabarovsk, RU
101.179.7.136 AS1221 Telstra Limited 2.69ms from Melbourne, AU
142.105.139.152 AS11351 Charter Communications Inc 12.12ms from New York City, US
112.225.69.232 AS4837 CHINA UNICOM China169 Backbone 1.07ms from Qingdao, CN
177.68.148.120 AS27699 TELEFÔNICA BRASIL S.A 1.78ms from Sao Paulo, BR
1.248.45.24 AS9318 SK Broadband Co Ltd 4.39ms from Seoul, KR
52.64.125.152 AS16509 Amazon.com, Inc. 0.12ms from Sydney, AU
103.28.130.152 AS45763 Opticomm Co Pty Ltd 3.15ms from Sydney, AU

Traceroute

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

$
traceroute -a -n -q1 -f4 103.15.21.32
traceroute to 103.15.21.32 (103.15.21.32): 64 hops max, 52 byte packets
4 [] 103.203.158.88 1.559 ms
6 [AS9381] 59.152.240.42 2.703 ms
7 [AS45910] 103.15.21.32 9.099 ms
Measurement taken from IPinfo ProbeNet in Hong Kong, HK
On

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
IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs