121.203.104.0/21

AS17924  ·  SmarTone Mobile Communications Ltd

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Summary

Country Hong Kong
Domain smartone.com
ASN AS17924
Parent Range 121.202.0.0/15
Registry APNIC
ID SMARTONE-MB

WHOIS Details

inetnum:        121.202.0.0 - 121.203.255.255
netname:        SMARTONE-MB
descr:          SmarTone Mobile Communications Ltd
descr:          Hong Kong
country:        HK
org:            ORG-SMCL2-AP
admin-c:        JY50-AP
tech-c:         EC9-AP
abuse-c:        AS2092-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-HK-SMARTM-AP
mnt-routes:     MAINT-HK-SMARTM-AP
mnt-irt:        IRT-SMARTMOBILE-HK
last-modified:  2020-05-16T06:32:37Z
source:         APNIC

irt:            IRT-SMARTMOBILE-HK
address:        31/F, Millennium City 2,
address:        378 Kwun Tong Road, Kwun Tong,
address:        Kowloon, Hong Kong
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        JY50-AP
tech-c:         EN211-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-08-27
mnt-by:         MAINT-HK-SMARTM-AP
last-modified:  2025-11-17T23:08:35Z
source:         APNIC

organisation:   ORG-SMCL2-AP
org-name:       Smartone Mobile communications Limited
org-type:       LIR
country:        HK
address:        31 / F , Millennium City 2
address:        378 Kwun Tong Road, Kwun Tong, Kowloon
phone:          +852-31282828
fax-no:         +852-25976556
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:50Z
source:         APNIC

role:           ABUSE SMARTMOBILEHK
country:        ZZ
address:        31/F, Millennium City 2,
address:        378 Kwun Tong Road, Kwun Tong,
address:        Kowloon, Hong Kong
phone:          +000000000
e-mail:         [email protected]
admin-c:        JY50-AP
tech-c:         EN211-AP
nic-hdl:        AS2092-AP
remarks:        Generated from irt object IRT-SMARTMOBILE-HK
remarks:        [email protected] was validated on 2025-08-27
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-27T00:45:01Z
source:         APNIC

person:         Eric Chan
nic-hdl:        EC9-AP
e-mail:         [email protected]
address:        31/F,Millennium City 2,
address:        378 Kwun Tong Road, Kwun Tong,
address:        Kowloon, Hong Kong
phone:          +852-31282298
fax-no:         +852-21683089
country:        HK
mnt-by:         MAINT-HK-EC9-AP
last-modified:  2009-12-09T10:21:18Z
source:         APNIC

person:         Johnny Yeung
nic-hdl:        JY50-AP
e-mail:         [email protected]
address:        31/F, Millennium City 2,
address:        378 Kwun Tong Road, Kwun Tong,
address:        Kowloon, Hong Kong
phone:          +852-28802618
fax-no:         +852-21683089
country:        HK
mnt-by:         MAINT-HK-JY50-AP
last-modified:  2009-12-09T08:10:00Z
source:         APNIC

route:          121.202.0.0/15
origin:         AS17924
descr:          Smartone Mobile communications Limited 31 / F , Millennium City 2 378 Kwun Tong Road, Kwun Tong, Kowloon
mnt-by:         MAINT-HK-SMARTM-AP
last-modified:  2021-04-22T07:22:28Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 121.203.104.0/21

Range ASN Company Num of IPs
121.202.0.0/15 AS17924 SmarTone Mobile Communications Ltd 131,072

Nearby Ranges

BGP prefixes that overlap with 121.203.0.0/16

Range ASN Company Num of IPs
121.202.0.0/15 AS17924 SmarTone Mobile Communications Ltd 131,072

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

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
24.126.128.101 AS7922 Comcast Cable Communications, LLC 3.09ms from Atlanta, US
177.130.26.21 AS52742 HELP INTERNET 11.18ms from Brasilia, BR
96.173.12.53 AS53297 Comcast Cable Communications, LLC 0.05ms from Chicago, US
3.29.83.149 AS16509 Amazon.com, Inc. 0.15ms from Dubai, AE
47.157.255.5 AS5650 Frontier Communications of America, Inc. 2.37ms from Los Angeles, US
49.190.110.5 AS4804 Microplex PTY LTD 8.65ms from Melbourne, AU
151.40.205.53 AS1267 WIND TRE S.P.A. 7.67ms from Milan, IT
201.15.156.197 AS8167 V tal 1.94ms from Novo Hamburgo, BR
65.141.210.213 AS209 CenturyLink Communications, LLC 1.08ms from Phoenix, US
24.10.136.229 AS7922 Comcast Cable Communications, LLC 5.58ms from Salt Lake City, US
152.240.31.181 AS26599 TELEFÔNICA BRASIL S.A 18.02ms from Sao Paulo, BR
223.210.7.69 AS4847 China Networks Inter-Exchange 17.07ms from Shanghai, CN
13.70.126.5 AS8075 Microsoft Corporation 0.66ms from Sydney, AU
178.113.209.69 AS25255 ==> TELE2 AUSTRIA <== 8.19ms from Vienna, AT
106.39.206.53 AS23724 IDC, China Telecommunications Corporation 3.46ms from Beijing, CN
146.232.22.69 AS2018 TENET (The UNINET Project) 2.20ms from Cape Town, ZA
35.224.42.213 AS396982 Google LLC 0.12ms from Council Bluffs, US
67.228.109.5 AS36351 IBM Cloud 1.32ms from Dallas, US
5.30.122.197 AS15802 Emirates Integrated Telecommunications Company PJSC 3.32ms from Dubai, AE
83.102.117.37 AS16086 DNA Oyj 0.77ms from Helsinki, FI
46.202.13.53 AS9009 M247 Europe SRL 0.08ms from Madrid, ES
90.51.163.85 AS3215 Orange S.A. 13.53ms from Marseille, FR
101.62.240.101 AS210278 Sky Italia srl 0.13ms from Milan, IT
84.53.211.21 AS34168 PJSC Rostelecom 16.65ms from Moscow, RU
122.182.22.53 AS9498 BHARTI Airtel Ltd. 1.17ms from Mumbai, IN

Traceroute

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

$
traceroute -a -n -q1 -m6 121.203.108.88
traceroute to 121.203.108.88 (121.203.108.88): 6 hops max, 52 byte packets
1 [AS15169] 72.14.239.92 194.322 ms
2 *
3 [AS17924] 203.78.42.167 203.856 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Montreal, CA
On

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