210.72.22.0/24

AS7497 · Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)

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Summary

Country	China
Domain	cnic.cn
ASN	AS7497
Parent Range	210.72.0.0/17
Registry	APNIC
ID	CSTNET-CN

WHOIS Details

inetnum:        210.72.0.0 - 210.72.127.255
netname:        CSTNET-CN
descr:          Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
country:        CN
org:            ORG-CA107-AP
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
abuse-c:        AC2741-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-CSTNET-CN
mnt-routes:     MAINT-CSTNET-CN
mnt-irt:        IRT-CSTNET-CN
last-modified:  2023-10-09T05:58:10Z
source:         APNIC

irt:            IRT-CSTNET-CN
address:        2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
e-mail:         abuse-ip@cstnet.cn
abuse-mailbox:  abuse-ip@cstnet.cn
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
auth:           # Filtered
remarks:        abuse-ip@cstnet.cn was validated on 2025-07-25
mnt-by:         MAINT-CSTNET-CN
last-modified:  2025-11-18T00:35:26Z
source:         APNIC

organisation:   ORG-CA107-AP
org-name:       CNIC-CAS
org-type:       LIR
country:        CN
address:        2 Dongsheng South Road, Haidian District
phone:          +86.10.58812266
e-mail:         support@cnic.cn
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:18:50Z
source:         APNIC

role:           ABUSE CSTNETCN
country:        ZZ
address:        2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
phone:          +000000000
e-mail:         abuse-ip@cstnet.cn
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
nic-hdl:        AC2741-AP
remarks:        Generated from irt object IRT-CSTNET-CN
remarks:        abuse-ip@cstnet.cn was validated on 2025-07-25
abuse-mailbox:  abuse-ip@cstnet.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-07-25T01:16:46Z
source:         APNIC

role:           Computer Network Information Center of Chinese Academy of Sciences administrator
address:        2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
country:        CN
phone:          +86.10.58812266
e-mail:         supervise@cnic.cn
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
nic-hdl:        CNIC1-AP
mnt-by:         MAINT-CNICOCAOS-CN
last-modified:  2022-05-12T07:31:01Z
source:         APNIC

route:          210.72.0.0/17
descr:          Route origin from CSTNET
country:        CN
origin:         AS7497
remarks:        Please contact lihong@cstnet.cn if you have any
remarks:        questions regarding this object.
remarks:        Antispam mail please send to antispam@cstnet.cn.
notify:         lihong@cstnet.cn
mnt-by:         MAINT-CSTNET-CN
last-modified:  2023-10-06T05:09:22Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.72.22.0/24

Range	ASN	Company	Num of IPs
210.72.0.0/17	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	32,768

Nearby Ranges

BGP prefixes that overlap with 210.72.0.0/16

Range	ASN	Company	Num of IPs
210.72.0.0/17	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	32,768
210.72.160.0/19	AS4808	China Internet Network Information Center	8,192
210.72.192.0/19	AS4808	Communication Center, China Aerospace	8,192
210.72.128.0/19	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	8,192
210.72.238.0/24	AS9814	bei jing zhao shuang co.,ltd	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

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

IP Address	ASN	Details
210.72.22.17	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`19.48ms` from Beijing, 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
100.36.112.40	AS701 Verizon Business	`2.17ms` from Ashburn, US
101.25.87.120	AS4837 CHINA UNICOM China169 Backbone	`6.12ms` from Beijing, CN
20.252.235.56	AS8075 Microsoft Corporation	`0.28ms` from Boydton, US
190.172.63.248	AS22927 Telefonica de Argentina	`18.23ms` from Buenos Aires, AR
183.36.116.88	AS4134 CHINANET-BACKBONE	`1.49ms` from Guangzhou, CN
39.187.206.216	AS56041 China Mobile communications corporation	`7.28ms` from Hangzhou, CN
83.58.37.120	AS3352 TELEFONICA DE ESPANA S.A.U.	`10.42ms` from Madrid, ES
174.173.24.152	AS7922 Comcast Cable Communications, LLC	`9.53ms` from Morris Plains, US
134.209.217.88	AS14061 DigitalOcean, LLC	`0.24ms` from New York City, US
68.129.253.8	AS701 Verizon Business	`2.98ms` from New York City, US
178.187.155.248	AS12389 PJSC Rostelecom	`5.89ms` from Novosibirsk, RU
182.34.226.216	AS4134 CHINANET-BACKBONE	`5.89ms` from Qingdao, CN
37.100.152.104	AS1267 WIND TRE S.P.A.	`5.78ms` from Rome, IT
1.222.91.104	AS3786 LG DACOM Corporation	`1.84ms` from Seoul, KR
140.112.36.120	AS17716 National Taiwan University	`1.37ms` from Taipei, TW
101.242.4.56	AS17429 BEIJING GEHUA CATV NETWORK CO.LTD	`8.89ms` from Beijing, CN
154.179.28.232	AS8452 TE-AS	`5.11ms` from Cairo, EG
31.49.213.120	AS2856 British Telecommunications PLC	`5.74ms` from Erith, GB
217.85.129.152	AS3320 Deutsche Telekom AG	`8.17ms` from Frankfurt am Main, DE
46.186.226.120	AS42961 Mobile Telecommunications Company K.S.C.P.	`7.89ms` from Kuwait City, KW
94.61.170.88	AS12353 Vodafone Portugal	`6.08ms` from Lisbon, PT
216.151.253.248	AS174 Cogent Communications, LLC	`0.30ms` from Los Angeles, US
93.144.239.152	AS30722 Vodafone Italia S.p.A.	`16.28ms` from Milan, IT
27.147.81.248	AS23624 Chukai Television Co,.Ltd.	`9.06ms` from Osaka, JP
219.166.1.72	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.64ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 -f6 210.72.22.169

traceroute to 210.72.22.169 (210.72.22.169): 64 hops max, 52 byte packets

6 [AS7497] 103.2.211.130 4.588 ms

7 [AS7497] 159.226.254.93 5.088 ms

8 [AS7497] 159.226.254.150 4.357 ms

9 [AS7497] 159.226.253.190 23.972 ms

10 [AS7497] 210.72.22.169 20.039 ms

Measurement taken from

IPinfo ProbeNet in Beijing, CN

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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