121.203.192.0/19

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 121.203.192.0/19

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

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

IP Address ASN Details
121.203.206.84 AS17924 SmarTone Mobile Communications Ltd 15.85ms from Hong Kong, HK
121.203.214.32 AS17924 SmarTone Mobile Communications Ltd 13.83ms from Hong Kong, HK
121.203.199.178 AS17924 SmarTone Mobile Communications Ltd 12.65ms from Hong Kong, HK
121.203.211.158 AS17924 SmarTone Mobile Communications Ltd 13.34ms from Hong Kong, HK
121.203.217.46 AS17924 SmarTone Mobile Communications Ltd 9.77ms from Hong Kong, HK
121.203.213.242 AS17924 SmarTone Mobile Communications Ltd 12.61ms from Hong Kong, HK
121.203.193.135 AS17924 SmarTone Mobile Communications Ltd 14.52ms from Hong Kong, HK
121.203.216.105 AS17924 SmarTone Mobile Communications Ltd 12.20ms from Hong Kong, HK
121.203.223.241 AS17924 SmarTone Mobile Communications Ltd 16.78ms from Hong Kong, HK
121.203.202.223 AS17924 SmarTone Mobile Communications Ltd 18.50ms from Hong Kong, HK
121.203.220.143 AS17924 SmarTone Mobile Communications Ltd 12.18ms from Hong Kong, HK
121.203.197.28 AS17924 SmarTone Mobile Communications Ltd 17.70ms from Hong Kong, HK
121.203.196.181 AS17924 SmarTone Mobile Communications Ltd 17.01ms from Hong Kong, HK
121.203.208.3 AS17924 SmarTone Mobile Communications Ltd 15.54ms from Hong Kong, HK
121.203.219.169 AS17924 SmarTone Mobile Communications Ltd 14.52ms from Hong Kong, HK
121.203.210.126 AS17924 SmarTone Mobile Communications Ltd 18.55ms from Hong Kong, HK
121.203.200.115 AS17924 SmarTone Mobile Communications Ltd 25.67ms from Hong Kong, HK
121.203.218.29 AS17924 SmarTone Mobile Communications Ltd 14.71ms from Hong Kong, HK
121.203.205.100 AS17924 SmarTone Mobile Communications Ltd 11.50ms from Hong Kong, HK
121.203.198.84 AS17924 SmarTone Mobile Communications Ltd 9.94ms from Hong Kong, HK
121.203.201.26 AS17924 SmarTone Mobile Communications Ltd 9.39ms from Hong Kong, HK
121.203.212.55 AS17924 SmarTone Mobile Communications Ltd 15.39ms from Hong Kong, HK
121.203.215.63 AS17924 SmarTone Mobile Communications Ltd 13.27ms from Hong Kong, HK
121.203.222.90 AS17924 SmarTone Mobile Communications Ltd 13.49ms from Hong Kong, HK
121.203.192.10 AS17924 SmarTone Mobile Communications Ltd 10.82ms 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
85.152.5.3 AS12946 R Cable y Telecable Telecomunicaciones, S.A.U. 11.78ms from A Coruna, ES
20.54.128.83 AS8075 Microsoft Corporation 0.22ms from Amsterdam, NL
34.240.86.115 AS16509 Amazon.com, Inc. 0.16ms from Dublin, IE
157.148.132.83 AS134543 China Unicom Guangdong IP network 5.25ms from Guangzhou, CN
113.73.142.227 AS4134 CHINANET-BACKBONE 6.00ms from Guangzhou, CN
18.163.132.67 AS16509 Amazon.com, Inc. 0.11ms from Hong Kong, HK
78.180.182.195 AS9121 Turk Telekomunikasyon Anonim Sirketi 0.98ms from Istanbul, TR
81.84.221.19 AS2860 NOS COMUNICACOES, S.A. 2.79ms from Lisbon, PT
130.162.160.243 AS31898 Oracle Corporation 0.25ms from London, GB
58.162.198.67 AS1221 Telstra Limited 1.69ms from Melbourne, AU
167.56.82.35 AS6057 Administracion Nacional de Telecomunicaciones 1.52ms from Montevideo, UY
93.195.177.195 AS3320 Deutsche Telekom AG 7.05ms from Nuernberg, DE
54.235.255.211 AS14618 Amazon.com, Inc. 0.22ms from Reston, US
87.104.127.67 AS204274 AURA Fiber A/S 3.31ms from Skanderborg, DK
194.26.204.51 AS48031 Ivanov Vitaliy Sergeevich 0.14ms from Sofia, BG
126.235.218.131 AS17676 SoftBank Corp. 2.86ms from Tokyo, JP
183.95.233.19 AS4837 CHINA UNICOM China169 Backbone 6.10ms from Wuhan, CN
83.97.157.3 AS12946 R Cable y Telecable Telecomunicaciones, S.A.U. 13.00ms from A Coruna, ES
181.51.147.51 AS10620 Telmex Colombia S.A. 10.75ms from Bogotá, CO
181.101.81.147 AS7303 Telecom Argentina S.A. 9.56ms from Buenos Aires, AR
41.34.47.3 AS8452 TE-AS 7.92ms from Cairo, EG
98.223.95.99 AS7922 Comcast Cable Communications, LLC 6.88ms from Chicago, US
84.151.250.35 AS3320 Deutsche Telekom AG 4.03ms from Duesseldorf, DE
87.172.102.19 AS3320 Deutsche Telekom AG 2.81ms from Duesseldorf, DE
189.36.207.3 AS28308 ORN TELECOMUNICACOES LTDA 0.64ms from Fortaleza, BR

Traceroute

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

$
traceroute -a -n -q1 -m6 121.203.222.63
traceroute to 121.203.222.63 (121.203.222.63): 6 hops max, 52 byte packets
1 [AS15169] 72.14.236.39 249.418 ms
2 *
3 [AS17924] 203.78.42.168 206.466 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Warsaw, PL
On

What are IP address ranges?

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