210.72.74.0/24

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 210.72.74.0/24

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
210.72.238.0/24	AS9814	bei jing zhao shuang co.,ltd	256

Hosted domains

There are no domains currently hosted on this ASN.

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

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

IP Address	ASN	Details
210.72.74.4	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`21.54ms` 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
178.88.161.88	AS9198 JSC Kazakhtelecom	`0.68ms` from Almaty, KZ
201.180.101.168	AS22927 Telefonica de Argentina	`4.88ms` from Buenos Aires, AR
146.86.130.8	AS398203 MidSouth Fiber	`8.01ms` from Dallas, US
85.254.52.104	AS136787 PacketHub S.A.	`0.06ms` from Edinburgh, GB
78.148.237.72	AS13285 TalkTalk Communications Limited	`3.16ms` from London, GB
109.154.171.56	AS2856 British Telecommunications PLC	`1.56ms` from London, GB
79.7.172.72	AS3269 Telecom Italia S.p.A.	`4.28ms` from Milan, IT
112.84.233.56	AS4837 CHINA UNICOM China169 Backbone	`9.10ms` from Nanjing, CN
153.136.179.152	AS4713 NTT DOCOMO BUSINESS,Inc.	`13.11ms` from Osaka, JP
195.200.111.184	AS8304 Ecritel SASU	`0.71ms` from Paris, FR
20.245.126.24	AS8075 Microsoft Corporation	`0.56ms` from San Jose, US
191.205.116.88	AS26599 TELEFÔNICA BRASIL S.A	`3.52ms` from Sao Paulo, BR
203.73.132.152	AS4780 Digital United Inc.	`2.94ms` from Taipei, TW
57.182.133.8	AS16509 Amazon.com, Inc.	`0.18ms` from Tokyo, JP
123.249.105.8	AS55990 Huawei Cloud Service data center	`3.65ms` from Beijing, CN
190.248.34.248	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`0.72ms` from Bogota, CO
75.212.148.200	AS6167 Verizon Business	`11.44ms` from Chicago, US
62.227.229.232	AS3320 Deutsche Telekom AG	`5.42ms` from Duesseldorf, DE
27.70.2.56	AS7552 Viettel Group	`1.97ms` from Hanoi, VN
47.196.73.24	AS5650 Frontier Communications of America, Inc.	`7.43ms` from Miami, US
50.88.214.168	AS33363 Charter Communications, Inc	`5.04ms` from Orlando, US
32.220.94.24	AS46690 Southern New England Telephone Company and SNET America, Inc.	`3.66ms` from Secaucus, US
112.156.82.120	AS17858 LG POWERCOMM	`2.78ms` from Seoul, KR
211.198.133.168	AS4766 Korea Telecom	`1.55ms` from Seoul, KR
42.61.47.120	AS3758 SingNet	`1.32ms` from Singapore, SG

Traceroute

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

traceroute -a -n -q1 -f6 210.72.74.6

traceroute to 210.72.74.6 (210.72.74.6): 64 hops max, 52 byte packets

6 [AS7497] 103.2.211.128 5.323 ms

7 [AS7497] 159.226.254.85 4.157 ms

8 [AS7497] 159.226.254.142 4.075 ms

9 [AS7497] 159.226.253.218 22.128 ms

10 *

11 *

12 [AS7497] 210.72.74.6 21.14 ms

Measurement taken from

IPinfo ProbeNet in Beijing, CN

On January 19th 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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