210.72.12.0/24

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 is invalid
mnt-by:         MAINT-CSTNET-CN
last-modified:  2026-02-11T13:10:17Z
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 is invalid
abuse-mailbox:  abuse-ip@cstnet.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-02-11T13:11:38Z
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 210.72.12.0/24

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

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

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

IP Address	ASN	Details
210.72.12.225	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`2.29ms` 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
20.185.150.168	AS8075 Microsoft Corporation	`0.46ms` from Ashburn, US
176.131.202.104	AS5410 Bouygues Telecom SA	`18.80ms` from Aubervilliers, FR
44.241.138.40	AS16509 Amazon.com, Inc.	`0.21ms` from Boardman, US
52.26.226.24	AS16509 Amazon.com, Inc.	`0.21ms` from Boardman, US
52.49.41.56	AS16509 Amazon.com, Inc.	`0.21ms` from Dublin, IE
187.105.24.232	AS28573 Claro NXT Telecomunicacoes Ltda	`14.97ms` from Fortaleza, BR
24.130.211.168	AS7922 Comcast Cable Communications, LLC	`1.86ms` from Fremont, US
223.95.202.248	AS56041 China Mobile communications corporation	`8.44ms` from Hangzhou, CN
123.202.200.8	AS9269 Hong Kong Broadband Network Ltd.	`0.73ms` from Hong Kong, HK
91.52.48.232	AS3320 Deutsche Telekom AG	`6.25ms` from Nuernberg, DE
88.162.59.104	AS12322 Free SAS	`15.33ms` from Paris, FR
99.156.74.104	AS7018 AT&T Enterprises, LLC	`4.18ms` from San Antonio, US
107.214.118.24	AS7018 AT&T Enterprises, LLC	`5.56ms` from San Jose, US
1.15.143.184	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.48ms` from Shanghai, CN
81.61.175.56	AS6739 VODAFONE ONO, S.A.	`12.10ms` from Barcelona, ES
101.30.47.120	AS4837 CHINA UNICOM China169 Backbone	`5.42ms` from Beijing, CN
93.236.232.72	AS3320 Deutsche Telekom AG	`7.76ms` from Frankfurt am Main, DE
177.142.131.168	AS28573 Claro NXT Telecomunicacoes Ltda	`7.34ms` from Rio de Janeiro, BR
185.85.162.56	AS43684 OTK LLC	`11.67ms` from Samara, RU
187.171.82.8	AS8151 UNINET	`14.87ms` from Santiago de Queretaro, MX
189.18.209.72	AS27699 TELEFÔNICA BRASIL S.A	`4.30ms` from Sao Paulo, BR
210.108.14.216	AS3786 LG DACOM Corporation	`1.53ms` from Seoul, KR
119.119.154.136	AS4837 CHINA UNICOM China169 Backbone	`7.90ms` from Tieling, CN
196.184.94.24	AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom)	`12.42ms` from Tunis, TN
1.199.31.232	AS4134 CHINANET-BACKBONE	`7.93ms` from Zhengzhou, CN

Traceroute

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

traceroute -a -n -q1 -f6 210.72.12.225

traceroute to 210.72.12.225 (210.72.12.225): 64 hops max, 52 byte packets

6 [AS174] 38.142.49.10 1.836 ms

7 *

8 [AS174] 154.54.31.78 4.58 ms

9 [AS174] 154.54.87.122 138.119 ms

10 [AS174] 154.18.9.165 137.809 ms

11 [AS7497] 159.226.254.229 170.926 ms

12 [AS7497] 159.226.254.237 170.335 ms

13 [AS7497] 159.226.254.98 170.271 ms

14 [AS7497] 210.72.12.225 169.385 ms

Measurement taken from

IPinfo ProbeNet in Seattle, US

On March 13th 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.

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