210.72.91.0/24

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 210.72.91.0/24

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 is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
210.72.91.182	gmg.org.cn	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

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

IP Address	ASN	Details
210.72.91.1	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`42.01ms` 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
206.180.133.248	AS26744 Planters Communications, LLC	`9.05ms` from Atlanta, US
99.81.173.184	AS16509 Amazon.com, Inc.	`0.14ms` from Dublin, IE
124.107.0.136	AS9299 Philippine Long Distance Telephone Company	`1.34ms` from Manila, PH
79.1.45.152	AS3269 Telecom Italia S.p.A.	`4.86ms` from Milan, IT
90.21.84.72	AS3215 Orange S.A.	`4.76ms` from Paris, FR
87.240.120.120	AS35184 Nomotech SAS	`0.47ms` from Paris, FR
58.162.241.216	AS1221 Telstra Limited	`1.77ms` from Perth, AU
76.209.241.136	AS7018 AT&T Enterprises, LLC	`7.02ms` from San Jose, US
1.116.108.232	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.63ms` from Shanghai, CN
45.115.23.24	AS134138 AXON Systems Pty Ltd	`0.45ms` from Sydney, AU
123.182.125.152	AS4134 CHINANET-BACKBONE	`6.27ms` from Tianjin, CN
49.115.222.216	AS4134 CHINANET-BACKBONE	`15.56ms` from UEruemqi, CN
63.251.90.88	AS10913 Unitas Global	`0.30ms` from Ashburn, US
83.135.3.216	AS8881 1&1 Versatel GmbH	`3.36ms` from Berlin, DE
191.202.41.248	AS26599 TELEFÔNICA BRASIL S.A	`16.61ms` from Brasilia, BR
91.182.129.40	AS5432 Proximus NV	`0.88ms` from Brussels, BE
223.235.145.24	AS24560 Bharti Airtel Ltd., Telemedia Services	`9.93ms` from Delhi, IN
91.72.7.232	AS15802 Emirates Integrated Telecommunications Company PJSC	`3.62ms` from Dubai, AE
126.62.18.216	AS17676 SoftBank Corp.	`3.43ms` from Osaka, JP
221.215.243.88	AS4837 CHINA UNICOM China169 Backbone	`1.18ms` from Qingdao, CN
71.6.6.184	AS14265 TPx Communications	`3.22ms` from San Jose, US
182.162.66.232	AS3786 LG DACOM Corporation	`1.08ms` from Seoul, KR
219.155.73.200	AS4837 CHINA UNICOM China169 Backbone	`1.63ms` from Zhengzhou, CN
158.181.98.40	AS8821 WWZ Telekom AG (TELEZUG)	`3.27ms` from Zuerich, CH
37.151.134.40	AS9198 JSC Kazakhtelecom	`9.25ms` from Almaty, KZ

Traceroute

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

traceroute -a -n -q1 -f4 210.72.91.1

traceroute to 210.72.91.1 (210.72.91.1): 64 hops max, 52 byte packets

4 [AS174] 199.100.16.49 131.874 ms

5 *

6 [AS174] 154.54.5.161 147.564 ms

7 [AS174] 154.54.41.53 155.511 ms

8 [AS174] 154.54.165.30 167.01 ms

9 [AS174] 154.54.166.70 199.13 ms

10 [AS174] 154.54.45.162 185.803 ms

11 [AS174] 154.54.25.150 186.5 ms

12 [AS174] 154.54.94.113 334.792 ms

13 [AS174] 154.18.9.165 301.62 ms

14 [AS7497] 159.226.254.229 333.375 ms

15 [AS7497] 159.226.254.65 342.598 ms

16 [AS7497] 159.226.254.142 335.681 ms

17 [AS7497] 159.226.253.182 372.265 ms

18 *

19 [AS7497] 210.72.91.1 367.639 ms

Measurement taken from

IPinfo ProbeNet in Curicó, CL

On January 9th 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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