210.72.80.0/22

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 210.72.80.0/22

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 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
210.72.81.165	westgfdc.ac.cn	1
210.72.80.34	beiluhe.ac.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

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

IP Address	ASN	Details
210.72.81.163	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`28.89ms` from Beijing, CN
210.72.80.184	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`27.78ms` 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
50.80.3.6	AS30036 Mediacom Communications Corp	`15.22ms` from Chicago, US
69.5.34.166	AS11069 Altafiber	`3.90ms` from Cincinnati, US
18.219.125.182	AS16509 Amazon.com, Inc.	`0.19ms` from Columbus, US
80.171.80.38	AS6805 Telefonica Germany GmbH & Co.OHG	`3.03ms` from Duesseldorf, DE
3.124.220.22	AS16509 Amazon.com, Inc.	`0.15ms` from Frankfurt am Main, DE
147.8.193.6	AS4528 The University of Hong Kong	`1.72ms` from Hong Kong, HK
31.220.89.54	AS51167 Contabo GmbH	`0.18ms` from Lauterbourg, FR
95.163.220.246	AS197695 "Domain names registrar REG.RU", Ltd	`0.97ms` from Moscow, RU
209.136.169.150	AS33623 Hayneville Telephone Company	`7.67ms` from Murfreesboro, US
69.201.171.38	AS12271 Charter Communications Inc	`4.05ms` from New York City, US
15.237.211.166	AS16509 Amazon.com, Inc.	`0.16ms` from Paris, FR
185.24.143.22	AS8399 SEWAN SAS	`0.61ms` from Paris, FR
85.196.179.214	AS29580 A1 Bulgaria EAD	`1.22ms` from Sofia, BG
120.48.128.38	AS38365 Beijing Baidu Netcom Science and Technology Co., Ltd.	`3.35ms` from Tianjin, CN
126.0.98.150	AS17676 SoftBank Corp.	`11.19ms` from Tokyo, JP
82.100.191.246	AS7514 Computer Engineering & Consulting, Ltd.	`1.35ms` from Tokyo, JP
12.127.135.230	AS7018 AT&T Enterprises, LLC	`1.91ms` from Atlanta, US
193.74.125.102	AS5432 Proximus NV	`1.14ms` from Brussels, BE
46.202.55.166	AS5511 Orange S.A.	`0.21ms` from Brussels, BE
91.104.125.54	AS213155 Yettel Hungary Ltd.	`12.34ms` from Budapest, HU
175.17.29.118	AS4837 CHINA UNICOM China169 Backbone	`2.98ms` from Changchun, CN
140.192.239.118	AS20130 Depaul University	`0.64ms` from Chicago, US
201.203.118.22	AS11830 Instituto Costarricense de Electricidad y Telecom.	`2.40ms` from Curridabat, CR
67.228.112.102	AS36351 IBM Cloud	`1.16ms` from Dallas, US
217.91.175.6	AS3320 Deutsche Telekom AG	`4.78ms` from Duesseldorf, DE

Traceroute

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

traceroute -a -n -q1 -f3 -m16 210.72.83.58

traceroute to 210.72.83.58 (210.72.83.58): 16 hops max, 52 byte packets

3 [AS749] 11.254.129.49 1.334 ms

4 [AS749] 11.62.83.157 0.734 ms

5 *

6 [AS141679] 106.63.0.169 1.227 ms

7 [AS141679] 106.63.121.113 0.555 ms

8 *

9 *

10 *

11 [AS7497] 159.226.254.69 4.276 ms

12 [AS7497] 159.226.254.142 5.185 ms

13 [AS7497] 159.226.253.170 30.747 ms

14 *

15 *

16 *

Measurement taken from

IPinfo ProbeNet in Tianjin, CN

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.

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