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:         [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 121.203.96.0/21

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
71.131.249.245 AS55960 Beijing Guanghuan Xinwang Digital 4.09ms from Beijing, CN
181.104.76.245 AS7303 Telecom Argentina S.A. 3.06ms from Buenos Aires, AR
174.79.228.245 AS22773 Cox Communications Inc. 10.05ms from Dallas, US
179.211.163.53 AS28573 Claro NXT Telecomunicacoes Ltda 13.82ms from Fortaleza, BR
4.223.149.5 AS8075 Microsoft Corporation 0.19ms from Gaevle, SE
112.160.29.165 AS4766 Korea Telecom 0.98ms from Incheon, KR
184.174.80.53 AS209242 Cloudflare London, LLC 0.11ms from Lisbon, PT
81.159.182.229 AS2856 British Telecommunications PLC 8.23ms from London, GB
108.53.73.117 AS701 Verizon Business 1.72ms from New York City, US
109.236.111.85 AS8359 MTS PJSC 1.03ms from Saint Petersburg, RU
168.62.218.213 AS8075 Microsoft Corporation 0.57ms from San Jose, US
70.45.106.165 AS14638 Liberty Communications of Puerto Rico LLC 0.29ms from San Juan, PR
106.242.222.101 AS3786 LG DACOM Corporation 1.84ms from Seoul, KR
75.133.15.213 AS20115 Charter Communications LLC 1.78ms from St. Louis, US
126.78.2.5 AS17676 SoftBank Corp. 3.09ms from Tokyo, JP
89.231.119.37 AS29314 VECTRA S.A. 7.50ms from Warsaw, PL
213.25.23.245 AS5617 Orange Polska Spolka Akcyjna 0.68ms from Wrocław, PL
111.20.77.133 AS9808 China Mobile Communications Group Co., Ltd. 1.21ms from Xi'an, CN
85.15.176.85 AS12389 PJSC Rostelecom 5.45ms from Yekaterinburg, RU
77.74.102.133 AS8758 Iway AG 0.58ms from Zuerich, CH
86.94.80.101 AS1136 KPN B.V. 3.09ms from Amsterdam, NL
88.197.62.69 AS8643 NATIONAL AND KAPODISTRIAN UNIVERSITY OF ATHENS 1.71ms from Athens, GR
91.185.120.5 AS41937 TELEKOM SRBIJA a.d. 0.83ms from Belgrade, RS
18.189.255.69 AS16509 Amazon.com, Inc. 0.11ms from Columbus, US
91.250.81.149 AS8972 Host Europe GmbH 3.17ms from Frankfurt am Main, DE

Traceroute

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

$
traceroute -a -n -q1 -m4 121.203.100.40
traceroute to 121.203.100.40 (121.203.100.40): 4 hops max, 52 byte packets
2 *
3 *
4 *
Measurement taken from IPinfo ProbeNet in Novosibirsk, RU
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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