121.203.112.0/21

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:         abuse@ismart.net
abuse-mailbox:  abuse@ismart.net
admin-c:        JY50-AP
tech-c:         EN211-AP
auth:           # Filtered
remarks:        abuse@ismart.net 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:         abuse@ismart.net
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:         abuse@ismart.net
admin-c:        JY50-AP
tech-c:         EN211-AP
nic-hdl:        AS2092-AP
remarks:        Generated from irt object IRT-SMARTMOBILE-HK
remarks:        abuse@ismart.net was validated on 2025-08-27
abuse-mailbox:  abuse@ismart.net
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-27T00:45:01Z
source:         APNIC

person:         Eric Chan
nic-hdl:        EC9-AP
e-mail:         ericchan@ismart.net
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:         johnnyyeung@ismart.net
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 121.203.112.0/21

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
73.200.240.229 AS7922 Comcast Cable Communications, LLC 8.13ms from Ashburn, US
71.236.104.181 AS7922 Comcast Cable Communications, LLC 10.55ms from Ashburn, US
20.124.18.245 AS8075 Microsoft Corporation 0.56ms from Ashburn, US
108.236.194.149 AS7018 AT&T Enterprises, LLC 2.77ms from Atlanta, US
121.17.228.21 AS4837 CHINA UNICOM China169 Backbone 10.44ms from Beijing, CN
174.182.87.229 AS7922 Comcast Cable Communications, LLC 12.04ms from Chicago, US
67.219.155.101 AS31957 Agile Networks 1.63ms from Columbus, US
217.63.121.21 AS42525 GlobalConnect A/S 0.66ms from Copenhagen, DK
174.82.23.213 AS20115 Charter Communications LLC 6.07ms from Dallas, US
75.41.146.85 AS36105 Big Bend Telephone Company, Inc. 12.22ms from Dallas, US
20.153.134.5 AS8069 Microsoft Corporation 0.16ms from Dublin, IE
124.156.145.117 AS132203 Tencent Building, Kejizhongyi Avenue 0.21ms from Hong Kong, HK
85.100.229.53 AS9121 Turk Telekomunikasyon Anonim Sirketi 14.71ms from Istanbul, TR
103.127.36.101 AS136030 Redtone Telecommunications Pakistan (Private) Limited 15.80ms from Karachi, PK
51.191.0.245 AS5607 Sky UK Limited 2.37ms from London, GB
67.49.81.165 AS20001 Charter Communications Inc 8.06ms from Los Angeles, US
134.173.238.37 AS3659 Claremont University Consortium 2.32ms from Los Angeles, US
80.29.69.149 AS3352 TELEFONICA DE ESPANA S.A.U. 1.66ms from Madrid, ES
73.62.100.37 AS7922 Comcast Cable Communications, LLC 6.93ms from Miami, US
50.172.10.85 AS7922 Comcast Cable Communications, LLC 1.10ms from Miami, US
137.192.55.53 AS5006 Inteliquent, inc. 1.35ms from Minneapolis, US
119.25.150.133 AS9617 JCOM Co., Ltd. 7.38ms from Osaka, JP
200.172.40.5 AS4230 CLARO S.A. 11.90ms from Rio de Janeiro, BR
13.64.185.165 AS8075 Microsoft Corporation 0.56ms from San Jose, US
195.253.109.5 AS8561 Knipp Medien und Kommunikation GmbH 0.26ms from Sao Paulo, BR

Traceroute

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

$
traceroute -a -n -q1 -m5 121.203.116.163
traceroute to 121.203.116.163 (121.203.116.163): 5 hops max, 52 byte packets
2 [AS3356] 8.243.189.41 14.667 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Santiago, CL
On

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