210.72.64.0/23

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 210.72.64.0/23

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
210.72.65.63	taihubloom.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

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

IP Address	ASN	Details
210.72.64.167	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`20.98ms` from Beijing, CN
210.72.65.214	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`19.87ms` 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
76.151.179.183	AS7922 Comcast Cable Communications, LLC	`6.63ms` from Ashburn, US
23.101.137.183	AS8075 Microsoft Corporation	`0.41ms` from Ashburn, US
92.116.94.247	AS8881 1&1 Versatel GmbH	`11.18ms` from Berlin, DE
184.106.61.183	AS19994 Rackspace Hosting	`1.27ms` from Chicago, US
79.243.19.183	AS3320 Deutsche Telekom AG	`5.00ms` from Duesseldorf, DE
3.122.12.247	AS16509 Amazon.com, Inc.	`0.15ms` from Frankfurt am Main, DE
212.234.137.71	AS3215 Orange S.A.	`6.59ms` from Frankfurt am Main, DE
14.226.110.39	AS45899 VNPT Corp	`2.92ms` from Hanoi, VN
67.120.10.7	AS7018 AT&T Enterprises, LLC	`1.74ms` from Los Angeles, US
83.37.25.199	AS3352 TELEFONICA DE ESPANA S.A.U.	`12.42ms` from Madrid, ES
31.200.193.55	AS12418 Quantum CJSC	`3.94ms` from Moscow, RU
104.88.166.231	AS16625 Akamai Technologies, Inc.	`0.40ms` from Osaka, JP
126.142.175.231	AS17676 SoftBank Corp.	`3.79ms` from Osaka, JP
200.212.248.39	AS4230 CLARO S.A.	`16.02ms` from Sao Paulo, BR
76.178.181.199	AS10838 Charter Communications Inc	`19.25ms` from Seattle, US
15.235.199.215	AS16276 OVH SAS	`0.27ms` from Singapore, SG
142.54.26.87	AS401415 Alliance Communications	`1.81ms` from Sioux Falls, US
23.56.56.39	AS16625 Akamai Technologies, Inc.	`0.11ms` from Stockholm, SE
173.32.57.247	AS812 Rogers Communications Canada Inc.	`2.10ms` from Toronto, CA
81.190.171.247	AS21021 Multimedia Polska Sp. z o.o.	`11.66ms` from Warsaw, PL
171.8.86.119	AS4134 CHINANET-BACKBONE	`6.52ms` from Zhengzhou, CN
52.37.157.103	AS16509 Amazon.com, Inc.	`0.19ms` from Boardman, US
81.82.7.119	AS6848 Telenet BV	`8.84ms` from Brussels, BE
69.132.45.183	AS11426 Charter Communications Inc	`4.46ms` from Charlotte, US
34.122.76.167	AS396982 Google LLC	`0.11ms` from Council Bluffs, US

Traceroute

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

traceroute -a -n -q1 -f5 -m12 210.72.64.154

traceroute to 210.72.64.154 (210.72.64.154): 12 hops max, 52 byte packets

5 [AS3491] 63.220.66.128 53.338 ms

6 [AS3491] 63.220.198.25 54.267 ms

7 [AS7497] 159.226.254.229 86.744 ms

8 [AS7497] 159.226.254.237 86.917 ms

9 [AS7497] 159.226.254.146 86.791 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

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.

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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