121.203.112.0/21

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


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

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

Overlapping Ranges

BGP prefixes that contain 121.203.112.0/21

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
73.200.240.229 AS7922 Comcast Cable Communications, LLC 8.10ms from Ashburn, US
54.201.168.229 AS16509 Amazon.com, Inc. 0.12ms from Boardman, US
44.237.101.245 AS16509 Amazon.com, Inc. 0.16ms from Boardman, US
76.52.36.133 AS11426 Charter Communications Inc 16.54ms from Charlotte, US
206.226.70.85 AS30036 Mediacom Communications Corp 7.72ms from Chicago, US
34.72.201.245 AS396982 Google LLC 0.12ms from Council Bluffs, US
169.151.157.5 AS2386 AT&T Enterprises, LLC 2.03ms from Dallas, US
4.150.181.37 AS8075 Microsoft Corporation 0.96ms from Des Moines, US
27.153.210.37 AS4134 CHINANET-BACKBONE 4.10ms from Fuzhou, CN
119.91.90.117 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.99ms from Guangzhou, CN
114.135.100.53 AS4134 CHINANET-BACKBONE 5.03ms from Guiyang, CN
113.181.110.53 AS45899 VNPT Corp 4.01ms from Hanoi, VN
49.65.125.213 AS134756 CHINANET Nanjing Jishan IDC network 3.18ms from Huai'an, CN
222.132.89.149 AS4837 CHINA UNICOM China169 Backbone 6.15ms from Jinan, CN
92.207.22.181 AS31655 Gamma Telecom Holdings Ltd 1.98ms from Manchester, GB
115.129.84.149 AS7545 TPG Telecom Limited 1.73ms from Melbourne, AU
67.196.184.5 AS8001 Cologix, Inc 0.36ms from Minneapolis, US
212.42.52.21 AS48199 Tehno-Pro LLC 0.62ms from Moscow, RU
84.128.81.149 AS3320 Deutsche Telekom AG 4.31ms from Nuernberg, DE
189.127.229.117 AS28236 PRTURBO INTERNET WIRELLESS EPP LTDA 9.50ms from Osasco, BR
24.47.47.229 AS6128 Cablevision Systems Corp. 8.85ms from Piscataway, US
207.135.213.37 AS13786 Seabras 1 USA, LLC 0.23ms from Porto Alegre, BR
51.143.62.101 AS8075 Microsoft Corporation 0.30ms from Quincy, US
221.165.107.69 AS4766 Korea Telecom 1.23ms from Seoul, KR
47.135.74.181 AS20115 Charter Communications LLC 11.30ms from Atlanta, US

Traceroute

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

$
traceroute -a -n -q1 -m5 121.203.116.216
traceroute to 121.203.116.216 (121.203.116.216): 5 hops max, 52 byte packets
1 [AS7195] 200.25.42.129 33.946 ms
2 [AS3356] 8.242.29.177 0.529 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Porto Alegre, BR
On

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