121.203.80.0/21

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


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


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

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

Overlapping Ranges

BGP prefixes that contain 121.203.80.0/21

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
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89.243.156.37 AS13285 TalkTalk Communications Limited 6.56ms from London, GB
67.23.65.5 AS33724 VOLICO 5.93ms from Miami, US
112.85.73.5 AS4837 CHINA UNICOM China169 Backbone 7.60ms from Nanjing, CN
82.67.18.213 AS12322 Free SAS 1.80ms from Paris, FR
88.200.137.165 AS12389 PJSC Rostelecom 0.19ms from Samara, RU
185.138.33.69 AS25400 Telia Norge AS 9.36ms from Sandefjord, NO
5.142.137.181 AS12389 PJSC Rostelecom 9.83ms from Stockholm, SE
91.236.173.5 AS60831 Arkadia Spolka Cywilna Krysztof Rozmus Barbara Rozmus 8.51ms from Warsaw, PL
5.202.168.85 AS49100 Pishgaman Toseeh Ertebatat Company (Private Joint Stock) 18.44ms from Yerevan, AM
195.29.194.117 AS5391 Hrvatski Telekom d.d. 0.60ms from Zagreb, HR
74.46.229.181 AS5650 Frontier Communications of America, Inc. 13.92ms from Ashburn, US
217.78.38.37 AS5650 Frontier Communications of America, Inc. 0.44ms from Ashburn, US
139.171.30.85 AS6079 RCN 1.58ms from Ashburn, US
54.69.22.165 AS16509 Amazon.com, Inc. 0.18ms from Boardman, US
118.185.85.37 AS55410 Vodafone Idea Ltd 0.89ms from Chennai, IN
187.65.227.101 AS28573 Claro NXT Telecomunicacoes Ltda 12.28ms from Curitiba, BR
136.49.135.245 AS16591 Google Fiber Inc. 5.12ms from Dallas, US
99.100.76.5 AS7018 AT&T Enterprises, LLC 2.56ms from Dallas, US
137.135.240.53 AS8075 Microsoft Corporation 0.17ms from Dublin, IE
168.210.88.69 AS20011 Dimension Data 1.41ms from Durban, ZA

Traceroute

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

$
traceroute -a -n -q1 -f5 -m8 121.203.81.183
traceroute to 121.203.81.183 (121.203.81.183): 8 hops max, 52 byte packets
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Sao Paulo, BR
On

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