121.203.80.0/21

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 121.203.80.0/21

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
44.219.68.149 AS14618 Amazon.com, Inc. 0.56ms from Ashburn, US
41.69.37.133 AS24835 Vodafone Data 12.00ms from Cairo, EG
222.160.155.53 AS4837 CHINA UNICOM China169 Backbone 5.98ms from Changchun, CN
184.14.86.181 AS5650 Frontier Communications of America, Inc. 17.11ms from Chicago, US
3.19.158.165 AS16509 Amazon.com, Inc. 0.15ms from Columbus, US
199.16.245.165 AS33561 Lunavi, Inc. 3.04ms from Denver, US
50.242.105.53 AS7922 Comcast Cable Communications, LLC 5.24ms from Fremont, US
46.221.47.21 AS15924 Vodafone Net Iletisim Hizmetler AS 2.83ms from Istanbul, TR
102.222.48.133 AS327750 JENNY INTERNET (PTY) LTD 7.21ms from Johannesburg, ZA
83.32.83.117 AS3352 TELEFONICA DE ESPANA S.A.U. 0.95ms from Madrid, ES
88.185.110.117 AS12322 Free SAS 14.81ms from Paris, FR
86.66.123.5 AS15557 Societe Francaise Du Radiotelephone - SFR SA 1.58ms from Paris, FR
168.62.7.133 AS8075 Microsoft Corporation 0.56ms from San Jose, US
98.255.150.197 AS7922 Comcast Cable Communications, LLC 7.50ms from Santa Clara, US
211.229.184.21 AS4766 Korea Telecom 4.69ms from Seoul, KR
216.209.124.21 AS577 Bell Canada 4.71ms from Toronto, CA
89.201.165.245 AS34594 Telemach Hrvatska d.o.o. 0.27ms from Zagreb, HR
46.177.22.5 AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA 1.07ms from Athens, GR
76.145.141.213 AS7922 Comcast Cable Communications, LLC 5.33ms from Atlanta, US
204.111.42.133 AS4922 Shenandoah Cable Television LLC 2.44ms from Berkeley Springs, US
170.254.96.5 AS265102 ARNET- Serviços de Conexão à Internet Ltda.-ME 15.64ms from Brasília, BR
221.8.189.37 AS4837 CHINA UNICOM China169 Backbone 2.40ms from Changchun, CN
122.143.177.133 AS4837 CHINA UNICOM China169 Backbone 5.76ms from Changchun, CN
113.229.133.245 AS4837 CHINA UNICOM China169 Backbone 10.02ms from Dalian, CN
202.53.64.21 AS10225 Nettlinx Limited 0.71ms from Hyderabad, IN

Traceroute

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

$
traceroute -a -n -q1 -f4 -m8 121.203.86.185
traceroute to 121.203.86.185 (121.203.86.185): 8 hops max, 52 byte packets
5 [AS3356] 4.59.162.73 0.967 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Durham, US
On

What are IP address ranges?

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Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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