121.203.96.0/21

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 121.203.96.0/21

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
52.13.16.245 AS16509 Amazon.com, Inc. 0.13ms from Boardman, US
5.14.31.21 AS8708 DIGI ROMANIA S.A. 4.38ms from Bucharest, RO
102.219.90.85 AS327872 IBITS Internet (pty) Ltd 2.58ms from Cape Town, ZA
50.232.24.245 AS63206 INOVA Federal Credit Union 3.92ms from Chicago, US
68.58.116.69 AS7922 Comcast Cable Communications, LLC 12.41ms from Chicago, US
199.219.207.181 AS701 Verizon Business 0.58ms from Dallas, US
110.227.121.133 AS24560 Bharti Airtel Ltd., Telemedia Services 9.62ms from Delhi, IN
150.109.100.117 AS132203 Tencent Building, Kejizhongyi Avenue 0.40ms from Hong Kong, HK
118.106.247.5 AS18126 Chubu Telecommunications Company, Inc. 11.21ms from Osaka, JP
118.18.235.245 AS4713 NTT DOCOMO BUSINESS,Inc. 2.83ms from Osaka, JP
195.154.124.133 AS12876 SCALEWAY S.A.S. 0.61ms from Paris, FR
20.83.108.85 AS8075 Microsoft Corporation 0.40ms from Quincy, US
45.79.76.21 AS63949 Akamai Connected Cloud 0.15ms from Santa Clara, US
45.181.214.21 AS269202 BRASNET MULTIINFORMATICA LTDA ME 19.29ms from Sao Paulo, BR
1.99.141.165 AS4766 Korea Telecom 2.21ms from Seoul, KR
211.248.218.229 AS4766 Korea Telecom 7.02ms from Seoul, KR
90.130.48.133 AS1257 Tele2 Sverige AB 0.66ms from Stockholm, SE
4.200.99.133 AS8075 Microsoft Corporation 0.69ms from Sydney, AU
20.193.73.85 AS8075 Microsoft Corporation 0.87ms from Sydney, AU
1.168.172.245 AS3462 Data Communication Business Group 1.39ms from Taichung, TW
111.20.77.133 AS9808 China Mobile Communications Group Co., Ltd. 1.23ms from Xi'an, CN
220.168.171.197 AS4134 CHINANET-BACKBONE 3.08ms from Changsha, CN
99.198.121.53 AS32475 Internap Holding LLC 0.86ms from Chicago, US
223.122.222.149 AS137872 China Mobile Hong Kong Company Limited 1.94ms from Hong Kong, HK
38.207.83.133 AS142286 LUOGELANG (FRANCE) LIMITED 1.07ms from Hong Kong, HK

Traceroute

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

$
traceroute -a -n -q1 -m6 121.203.101.185
traceroute to 121.203.101.185 (121.203.101.185): 6 hops max, 52 byte packets
1 [AS15169] 72.14.239.92 136.303 ms
2 *
3 [AS17924] 203.78.42.167 145.931 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in The Dalles, US
On

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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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