121.202.251.0/24

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 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 121.202.251.0/24

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
121.202.126.0/24	AS17924	SmarTone	256
121.202.127.0/24	AS17924	SmarTone	256
121.202.252.0/24	AS17924	SmarTone	256
121.202.253.0/24	AS17924	SmarTone	256

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

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
178.148.46.136	AS31042 Serbia BroadBand-Srpske Kablovske mreze d.o.o.	`7.07ms` from Belgrade, RS
188.209.164.72	AS61028 Stadtwerke Schwedt GmbH	`8.21ms` from Berlin, DE
52.37.100.24	AS16509 Amazon.com, Inc.	`0.13ms` from Boardman, US
124.66.99.184	AS4837 CHINA UNICOM China169 Backbone	`13.49ms` from Guangzhou, CN
49.244.161.104	AS23752 Nepal Telecommunications Corporation, Internet Services,	`1.98ms` from Kathmandu, NP
86.30.113.104	AS5089 Virgin Media Limited	`5.76ms` from London, GB
2.120.105.56	AS5607 Sky UK Limited	`0.86ms` from London, GB
177.138.95.168	AS27699 TELEFÔNICA BRASIL S.A	`2.17ms` from Novo Hamburgo, BR
60.209.22.72	AS4837 CHINA UNICOM China169 Backbone	`2.09ms` from Qingdao, CN
3.133.69.88	AS16509 Amazon.com, Inc.	`0.18ms` from Columbus, US
14.171.31.72	AS45899 VNPT Corp	`2.54ms` from Hanoi, VN
27.72.126.8	AS7552 Viettel Group	`1.97ms` from Hanoi, VN
31.47.241.104	AS45012 dogado GmbH	`0.25ms` from Leipzig, DE
109.231.79.104	AS22639 Cooptel Coop de Telecommunication	`4.16ms` from Montreal, CA
90.9.142.72	AS3215 Orange S.A.	`14.11ms` from Paris, FR
174.168.78.88	AS7922 Comcast Cable Communications, LLC	`9.84ms` from Providence, US
52.202.86.168	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
4.248.249.152	AS8075 Microsoft Corporation	`0.16ms` from Toronto, CA
197.244.169.88	AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom)	`1.84ms` from Tunis, TN
114.241.230.8	AS4808 China Unicom Beijing Province Network	`3.11ms` from Beijing, CN
105.159.225.184	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`2.17ms` from Casablanca, MA
97.85.59.72	AS20115 Charter Communications LLC	`10.64ms` from Chicago, US
59.180.169.200	AS17813 Mahanagar Telephone Nigam Limited	`1.77ms` from Delhi, IN
175.136.78.24	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`2.88ms` from Kuala Lumpur, MY
31.127.73.232	AS2856 British Telecommunications PLC	`5.34ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -m6 121.202.251.89

traceroute to 121.202.251.89 (121.202.251.89): 6 hops max, 52 byte packets

1 [AS15169] 72.14.239.92 187.877 ms

2 *

3 [AS17924] 203.78.42.74 191.491 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Toronto, CA

On January 19th 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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