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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
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:         [email protected]
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
nic-hdl:        AC2741-AP
remarks:        Generated from irt object IRT-CSTNET-CN
remarks:        [email protected] was validated on 2025-07-25
abuse-mailbox:  [email protected]
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:         [email protected]
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 [email protected] if you have any
remarks:        questions regarding this object.
remarks:        Antispam mail please send to [email protected].
notify:         [email protected]
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

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

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

IP Address	ASN	Details
210.72.81.169	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`27.59ms` from Beijing, CN
210.72.82.115	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`28.43ms` from Beijing, CN
210.72.80.184	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`26.97ms` 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
98.1.84.246	AS11351 Charter Communications Inc	`18.54ms` from Chicago, US
166.142.80.6	AS6167 Verizon Business	`19.69ms` from Chicago, US
23.118.215.198	AS7018 AT&T Enterprises, LLC	`6.96ms` from Columbus, US
54.170.92.118	AS16509 Amazon.com, Inc.	`0.18ms` from Dublin, IE
212.66.192.134	AS199480 Alajarven Puhelinosuuskunta, JAPO	`8.64ms` from Helsinki, FI
98.155.153.38	AS20001 Charter Communications Inc	`6.86ms` from Honolulu, US
223.230.125.6	AS24560 Bharti Airtel Ltd., Telemedia Services	`2.03ms` from Hyderabad, IN
42.85.81.86	AS4837 CHINA UNICOM China169 Backbone	`10.54ms` from Liaoyang, CN
73.156.133.22	AS7922 Comcast Cable Communications, LLC	`3.99ms` from Miami, US
81.222.199.22	AS20597 PJSC "Vimpelcom"	`1.95ms` from Moscow, RU
150.158.224.22	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.22ms` from Shanghai, CN
3.25.56.70	AS16509 Amazon.com, Inc.	`0.11ms` from Sydney, AU
23.248.177.246	AS21859 Zenlayer Inc	`0.16ms` from Taipei, TW
54.65.97.118	AS16509 Amazon.com, Inc.	`0.20ms` from Tokyo, JP
27.114.111.102	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.87ms` from Tokyo, JP
99.210.29.86	AS812 Rogers Communications Canada Inc.	`15.22ms` from Toronto, CA
179.125.120.70	AS263635 REDE G2 LTDA - ME	`1.91ms` from Uberlandia, BR
140.143.244.102	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.91ms` from Beijing, CN
186.147.150.86	AS10620 Telmex Colombia S.A.	`17.44ms` from Bogota, CO
20.159.194.246	AS8070 Microsoft Corporation	`0.62ms` from Boydton, US
119.7.183.150	AS4837 CHINA UNICOM China169 Backbone	`9.49ms` from Chengdu, CN
68.36.56.134	AS7922 Comcast Cable Communications, LLC	`8.22ms` from Flint, US
83.112.21.118	AS3215 Orange S.A.	`9.38ms` from Frankfurt am Main, DE
79.195.175.70	AS3320 Deutsche Telekom AG	`7.29ms` from Frankfurt am Main, DE
217.235.29.198	AS3320 Deutsche Telekom AG	`10.55ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 -f6 210.72.80.156

traceroute to 210.72.80.156 (210.72.80.156): 64 hops max, 52 byte packets

6 [AS7497] 103.2.211.128 5.516 ms

7 [AS7497] 159.226.254.85 4.667 ms

8 [AS7497] 159.226.254.142 5.022 ms

9 [AS7497] 159.226.253.102 34.004 ms

10 *

11 *

12 [AS7497] 210.72.80.156 28.7 ms

Measurement taken from

IPinfo ProbeNet in Beijing, CN

On December 28th 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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