121.202.137.0/24

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 2026-03-04
mnt-by:         MAINT-HK-SMARTM-AP
last-modified:  2026-03-04T02:29:41Z
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 2026-03-04
abuse-mailbox:  abuse@ismart.net
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-04T02:30:07Z
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 121.202.137.0/24

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 121.202.0.0/16

Range	ASN	Company	Num of IPs
121.202.0.0/15	AS17924	SmarTone Mobile Communications Ltd	131,072
121.202.127.0/24	AS17924	SmarTone	256
121.202.253.0/24	AS17924	SmarTone	256
121.202.126.0/24	AS17924	SmarTone	256
121.202.252.0/24	AS17924	SmarTone	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

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
4.246.139.200	AS8075 Microsoft Corporation	`0.88ms` from Ashburn, US
3.102.196.8	AS16509 Amazon.com, Inc.	`0.44ms` from Auckland, NZ
175.16.20.8	AS4837 CHINA UNICOM China169 Backbone	`2.73ms` from Changchun, CN
65.115.198.136	AS209 CenturyLink Communications, LLC	`10.69ms` from Dallas, US
108.201.56.104	AS7018 AT&T Enterprises, LLC	`14.23ms` from Dallas, US
183.142.116.168	AS4134 CHINANET-BACKBONE	`8.18ms` from Hangzhou, CN
75.44.241.24	AS7018 AT&T Enterprises, LLC	`3.14ms` from Miami, US
217.57.19.216	AS3269 Telecom Italia S.p.A.	`4.18ms` from Milan, IT
68.197.98.136	AS6128 Cablevision Systems Corp.	`8.24ms` from New York City, US
24.0.52.8	AS7922 Comcast Cable Communications, LLC	`7.15ms` from New York City, US
133.48.43.40	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`4.92ms` from Osaka, JP
189.60.41.24	AS28573 Claro NXT Telecomunicacoes Ltda	`1.85ms` from Rio de Janeiro, BR
49.172.120.8	AS17858 LG POWERCOMM	`1.58ms` from Seoul, KR
14.64.199.232	AS4766 Korea Telecom	`1.73ms` from Seoul, KR
173.91.251.104	AS10796 Charter Communications Inc	`10.98ms` from Cleveland, US
76.92.34.72	AS10796 Charter Communications Inc	`6.28ms` from Columbus, US
62.158.251.168	AS3320 Deutsche Telekom AG	`5.25ms` from Frankfurt am Main, DE
110.227.23.184	AS45609 Bharti Airtel Ltd. AS for GPRS Service	`0.51ms` from Lohogaon, IN
154.32.148.200	AS4637 Telstra Global	`1.16ms` from London, GB
200.58.243.8	AS265721 Cable Atlantico SRL	`18.16ms` from Miami, US
151.42.173.88	AS1267 WIND TRE S.P.A.	`5.26ms` from Milan, IT
177.83.38.56	AS28573 Claro NXT Telecomunicacoes Ltda	`9.46ms` from Porto Alegre, BR
20.115.177.232	AS8075 Microsoft Corporation	`0.30ms` from Quincy, US
174.59.212.24	AS7922 Comcast Cable Communications, LLC	`19.77ms` from Reston, US
66.120.23.40	AS7018 AT&T Enterprises, LLC	`2.73ms` from San Jose, US

Traceroute

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

traceroute -a -n -q1 -m6 121.202.137.249

traceroute to 121.202.137.249 (121.202.137.249): 6 hops max, 52 byte packets

1 [AS15169] 72.14.236.39 112.572 ms

2 *

3 [AS17924] 203.78.42.168 127.304 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Melbourne, AU

On March 20th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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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