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:         [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 210.72.64.0/23

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

13 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)	`20.51ms` from Beijing, CN
210.72.65.214	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`19.71ms` 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
76.12.60.151	AS20021 Ntirety, Inc.	`4.22ms` from Ashburn, US
76.125.156.7	AS7922 Comcast Cable Communications, LLC	`12.95ms` from Ashburn, US
198.61.249.151	AS19994 Rackspace Hosting	`1.30ms` from Chicago, US
87.198.64.55	AS34245 Magnet Networks Limited	`0.78ms` from Dublin, IE
174.162.70.23	AS7922 Comcast Cable Communications, LLC	`9.15ms` from Flint, US
82.32.201.39	AS5089 Virgin Media Limited	`9.47ms` from London, GB
83.105.0.151	AS5378 Vodafone Limited	`8.27ms` from London, GB
70.48.76.55	AS577 Bell Canada	`2.12ms` from Montreal, CA
34.238.146.71	AS14618 Amazon.com, Inc.	`0.53ms` from Reston, US
177.12.182.103	AS263033 LINKLI TELECOMUNICACOES LTDA	`0.46ms` from Rio de Janeiro, BR
168.138.133.55	AS31898 Oracle Corporation	`0.28ms` from Sao Paulo, BR
121.129.90.39	AS4766 Korea Telecom	`2.22ms` from Seoul, KR
23.56.56.39	AS16625 Akamai Technologies, Inc.	`0.12ms` from Stockholm, SE
187.74.5.23	AS27699 TELEFÔNICA BRASIL S.A	`4.37ms` from São Paulo, BR
54.200.130.215	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
129.215.231.119	AS786 Jisc Services Limited	`7.60ms` from Chester, GB
130.195.10.199	AS23905 Victoria University of Wellington	`5.56ms` from Christchurch, NZ
97.134.150.183	AS6167 Verizon Business	`8.85ms` from Dallas, US
172.248.102.167	AS20001 Charter Communications Inc	`5.99ms` from Los Angeles, US
187.75.61.151	AS27699 TELEFÔNICA BRASIL S.A	`1.82ms` from Osasco, BR
190.47.152.215	AS22047 VTR BANDA ANCHA S.A.	`9.85ms` from Santiago, CL
125.116.24.39	AS4134 CHINANET-BACKBONE	`9.91ms` from Shanghai, CN
1.40.241.7	AS4804 Microplex PTY LTD	`1.01ms` from Sydney, AU
20.194.242.103	AS8075 Microsoft Corporation	`0.55ms` from Tokyo, JP
84.80.200.135	AS1136 KPN B.V.	`1.18ms` from Amsterdam, NL

Traceroute

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

traceroute -a -n -q1 -f7 210.72.65.211

traceroute to 210.72.65.211 (210.72.65.211): 64 hops max, 52 byte packets

7 [AS7497] 159.226.254.89 3.44 ms

8 [AS7497] 159.226.254.146 4.233 ms

9 *

10 *

11 *

12 [AS7497] 210.72.65.211 20.505 ms

Measurement taken from

IPinfo ProbeNet in Beijing, CN

On January 30th 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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