121.203.64.0/21

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 121.203.64.0/21

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
104.40.200.245 AS8075 Microsoft Corporation 0.23ms from Amsterdam, NL
24.30.94.21 AS7922 Comcast Cable Communications, LLC 3.99ms from Atlanta, US
172.177.243.117 AS8075 Microsoft Corporation 0.19ms from Boydton, US
34.27.228.165 AS396982 Google LLC 0.12ms from Council Bluffs, US
208.66.144.181 AS13823 Mesh.Net 2.50ms from Dallas, US
59.58.103.149 AS4134 CHINANET-BACKBONE 3.41ms from Fuzhou, CN
171.231.119.133 AS7552 Viettel Group 12.62ms from Ho Chi Minh City, VN
85.223.255.181 AS15895 "Kyivstar" PJSC 0.72ms from Kyiv, UA
176.105.164.69 AS57670 "OPENWAY" LLC. 6.03ms from Kyiv, UA
198.178.74.229 AS395321 MOLEX LLC 1.00ms from Mount Prospect, US
24.191.245.69 AS6128 Cablevision Systems Corp. 9.27ms from Piscataway, US
75.228.195.21 AS6167 Verizon Business 11.98ms from Providence, US
49.236.90.229 AS17858 LG POWERCOMM 1.90ms from Seoul, KR
106.244.186.53 AS3786 LG DACOM Corporation 1.54ms from Seoul, KR
1.162.192.149 AS3462 Data Communication Business Group 3.76ms from Taipei, TW
125.30.176.213 AS2497 Internet Initiative Japan Inc. 1.88ms from Tokyo, JP
105.109.47.213 AS36947 Telecom Algeria 10.84ms from Tunis, TN
92.113.93.101 AS20853 eTOP sp. z o.o. 0.50ms from Warsaw, PL
44.245.154.101 AS16509 Amazon.com, Inc. 0.53ms from Boardman, US
64.25.90.85 AS26251 Prospeed.Net,Inc. 3.28ms from Boston, US
47.108.24.165 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.11ms from Chengdu, CN
38.146.3.117 AS174 Cogent Communications, LLC 0.65ms from Detroit, US
20.223.251.245 AS8075 Microsoft Corporation 0.13ms from Dublin, IE
111.56.204.133 AS9808 China Mobile Communications Group Co., Ltd. 8.40ms from Hohhot, CN
83.132.248.181 AS2860 NOS COMUNICACOES, S.A. 13.82ms from Lisbon, PT

Traceroute

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

$
traceroute -a -n -q1 -m6 121.203.66.54
traceroute to 121.203.66.54 (121.203.66.54): 6 hops max, 52 byte packets
1 [AS15169] 72.14.239.92 231.651 ms
2 *
3 [AS17924] 203.78.42.167 194.07 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in London, GB
On

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