121.203.88.0/21

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 121.203.88.0/21

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
70.160.189.229 AS22773 Cox Communications Inc. 9.23ms from Ashburn, US
20.153.188.37 AS8069 Microsoft Corporation 0.19ms from Des Moines, US
121.40.253.149 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.59ms from Hangzhou, CN
113.2.246.37 AS4837 CHINA UNICOM China169 Backbone 6.78ms from Harbin, CN
222.101.32.213 AS4766 Korea Telecom 1.83ms from Incheon, KR
1.9.165.213 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 6.09ms from Kuala Lumpur, MY
78.32.154.69 AS8468 ENTANET International Limited 4.90ms from London, GB
6.6.50.181 AS668 United States Department of Defense (DoD) 1.79ms from Los Angeles, US
65.123.232.133 AS209 CenturyLink Communications, LLC 0.72ms from Miami, US
62.94.45.197 AS3302 Retelit Digital Services S.p.A. 0.50ms from Milan, IT
74.115.73.181 AS36100 MTC Broadband, Inc. 9.58ms from Morris Plains, US
144.196.59.229 AS13445 Cisco Webex LLC 0.63ms from New York City, US
84.133.183.213 AS3320 Deutsche Telekom AG 4.50ms from Nuernberg, DE
217.220.139.117 AS8968 BT Italia S.p.A. 1.60ms from Rome, IT
190.83.35.5 AS265911 G6 Internet 5.11ms from Sao Paulo, BR
15.165.69.149 AS16509 Amazon.com, Inc. 0.20ms from Seoul, KR
222.99.193.69 AS4766 Korea Telecom 1.68ms from Seoul, KR
169.211.7.101 AS4766 Korea Telecom 2.16ms from Seoul, KR
124.150.94.245 AS7545 TPG Telecom Limited 0.87ms from Sydney, AU
13.115.230.165 AS16509 Amazon.com, Inc. 0.15ms from Tokyo, JP
68.164.42.149 AS5650 Frontier Communications of America, Inc. 0.51ms from Ashburn, US
50.110.116.37 AS5650 Frontier Communications of America, Inc. 10.62ms from Ashburn, US
89.12.3.69 AS6805 Telefonica Germany GmbH & Co.OHG 3.91ms from Berlin, DE
54.68.208.133 AS16509 Amazon.com, Inc. 0.18ms from Boardman, US
52.33.6.37 AS16509 Amazon.com, Inc. 0.14ms from Boardman, US

Traceroute

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

$
traceroute -a -n -q1 -f2 -m6 121.203.88.230
traceroute to 121.203.88.230 (121.203.88.230): 6 hops max, 52 byte packets
3 [] 195.66.224.100 8.001 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in London, GB
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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