121.0.16.0/20

AS37963 · Hangzhou Alibaba Advertising Co.,Ltd.

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Summary

Country	China
Domain	alibaba-inc.com
ASN	AS37963
Registry	APNIC
ID	ALIBABA-CN-NET

WHOIS Details

inetnum:        121.0.16.0 - 121.0.31.255
netname:        ALIBABA-CN-NET
descr:          Hangzhou Alibaba Advertising Co.,Ltd.
descr:          No.699, Wangshang RD., Hangzhou, China
country:        CN
admin-c:        ZM678-AP
tech-c:         ZM877-AP
tech-c:         ZM876-AP
abuse-c:        AC1601-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-CNNIC-AP
mnt-irt:        IRT-ALIBABA-CN-NET-CN
mnt-lower:      MAINT-CNNIC-AP
mnt-routes:     MAINT-CNNIC-AP
last-modified:  2023-11-28T00:57:01Z
source:         APNIC

irt:            IRT-ALIBABA-CN-NET-CN
address:        No.699, Wangshang RD., Hangzhou, China
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        ZM678-AP
tech-c:         ZM678-AP
auth:           # Filtered
mnt-by:         MAINT-CNNIC-AP
last-modified:  2025-11-18T00:35:07Z
source:         APNIC

role:           ABUSE CNNICCN
country:        ZZ
address:        Beijing, China
phone:          +000000000
e-mail:         [email protected]
admin-c:        IP50-AP
tech-c:         IP50-AP
nic-hdl:        AC1601-AP
remarks:        Generated from irt object IRT-CNNIC-CN
remarks:        [email protected] is invalid
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-19T17:20:32Z
source:         APNIC

person:         Shuo Yu
address:        5F, Builing D, the West Lake International Plaza of S&T
address:        No.391 Wen'er Road, Hangzhou City
address:        Zhejiang, China, 310099
country:        CN
phone:          +86-0571-85022600
e-mail:         [email protected]
nic-hdl:        ZM678-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2021-04-13T23:21:57Z
source:         APNIC

person:         security trouble
e-mail:         [email protected]
address:        5th,floor,Building D,the West Lake International Plaza of S&T,391#Wen??r Road
address:        Hangzhou, Zhejiang, China
phone:          +86-0571-85022600
country:        CN
mnt-by:         MAINT-CNNIC-AP
nic-hdl:        ZM876-AP
last-modified:  2025-07-01T07:06:11Z
source:         APNIC

person:         Guowei Pan
address:        5F, Builing D, the West Lake International Plaza of S&T
address:        No.391 Wen'er Road, Hangzhou City
address:        Zhejiang, China, 310099
country:        CN
phone:          +86-0571-85022088-30763
fax-no:         +86-0571-85022600
e-mail:         [email protected]
nic-hdl:        ZM877-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2025-07-01T07:05:46Z
source:         APNIC

route:          121.0.16.0/20
descr:          Hangzhou Alibaba Advertising Co.,Ltd.
country:        CN
origin:         AS37963
mnt-by:         MAINT-CNNIC-AP
last-modified:  2019-08-08T23:26:03Z
source:         APNIC

route:          121.0.16.0/20
descr:          Alibaba (US) Technology Co., Ltd.
country:        CN
origin:         AS45102
mnt-by:         MAINT-CNNIC-AP
last-modified:  2019-08-08T23:26:03Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 121.0.0.0/16

Range	ASN	Company	Num of IPs
121.0.128.0/17	AS38661	Duruan	32,768
121.0.64.0/18	AS138195	Dotname Korea Corp	16,384
121.0.64.0/18	AS153997	Dotname Korea Corp	16,384
121.0.64.0/18	AS18328	Dotname Korea Corp	16,384
121.0.32.0/20	AS9595	NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION	4,096
121.0.48.0/21	AS9595	NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION	2,048
121.0.0.0/21	AS7594	On Q	2,048
121.0.60.0/23	AS154237	Swift Technology Pvt. Ltd.	512
121.0.127.0/24	AS136897	Moack Co., Ltd.	256

Hosted domains

There are 32 domain names hosted across 12 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
121.0.16.7	penn-elcom.hk	11
121.0.20.19	tigerchemgroup.com	3
121.0.17.65	alibaba-inc.com	2
121.0.18.176	alisoft-inc.com	2
121.0.30.56	chinawangxia.com	1
121.0.20.1	baiterarts.com	1
121.0.18.8	alisoft.cn	1
121.0.21.74	shark.to	1
121.0.17.92	alixueyuan.org	1

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

18 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
121.0.21.193	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`5.50ms` from Hangzhou, CN
121.0.29.234	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.40ms` from Hangzhou, CN
121.0.31.198	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.29ms` from Qingdao, CN

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
2.85.126.4	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`7.90ms` from Athens, GR
124.17.110.196	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`2.81ms` from Beijing, CN
52.254.62.4	AS8075 Microsoft Corporation	`0.19ms` from Boydton, US
185.161.82.4	AS207180 HCL Technologies Germany GmbH	`11.67ms` from Frankfurt am Main, DE
80.250.101.116	AS50889 NVIDIA Ltd	`0.19ms` from Frankfurt am Main, DE
116.178.214.4	AS4837 CHINA UNICOM China169 Backbone	`7.96ms` from Hami, CN
125.118.7.212	AS4134 CHINANET-BACKBONE	`6.17ms` from Hangzhou, CN
36.88.1.52	AS7713 PT Telekomunikasi Indonesia	`9.69ms` from Jakarta, ID
90.115.121.196	AS3215 Orange S.A.	`1.20ms` from Paris, FR
5.240.9.228	AS1257 Tele2 Sverige AB	`10.58ms` from Riga, LV
79.6.54.148	AS3269 Telecom Italia S.p.A.	`4.75ms` from Rome, IT
211.47.134.180	AS38661 abcle	`1.45ms` from Seoul, KR
203.234.105.100	AS4766 Korea Telecom	`1.37ms` from Seoul, KR
180.162.162.68	AS4812 China Telecom (Group)	`3.66ms` from Shanghai, CN
34.216.102.20	AS16509 Amazon.com, Inc.	`0.12ms` from Boardman, US
207.211.177.132	AS31898 Oracle Corporation	`0.35ms` from Chicago, US
61.128.150.68	AS4134 CHINANET-BACKBONE	`1.12ms` from Chongqing, CN
155.63.0.4	AS32908 Trimble, Inc.	`9.00ms` from Columbus, US
85.24.4.4	AS15516 DKTV A/S	`0.67ms` from Copenhagen, DK
79.244.64.20	AS3320 Deutsche Telekom AG	`3.34ms` from Duesseldorf, DE
154.208.212.228	AS134548 DXTL Tseung Kwan O Service	`0.76ms` from Hong Kong, HK
95.3.20.4	AS9121 Turk Telekomunikasyon Anonim Sirketi	`0.91ms` from Istanbul, TR
46.250.161.100	AS136907 HUAWEI CLOUDS	`2.73ms` from Mexico City, MX
34.23.213.52	AS396982 Google LLC	`0.15ms` from Moncks Corner, US
104.168.143.132	AS54290 Hostwinds LLC.	`0.15ms` from Seattle, US

Traceroute

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

traceroute -a -n -q1 -m4 121.0.30.25

traceroute to 121.0.30.25 (121.0.30.25): 4 hops max, 52 byte packets

1 [AS263812] 190.103.177.1 1.279 ms

2 *

3 *

4 *

Measurement taken from

IPinfo ProbeNet in Cordoba, AR

On December 6th 2025

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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