210.76.192.0/21

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	210.76.192.0/19
Registry	APNIC
ID	CSTNET-CN

WHOIS Details

inetnum:        210.76.192.0 - 210.76.223.255
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:  2023-10-10T01:35:49Z
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:          210.76.192.0/19
descr:          Chinese Science & Technology Network
country:        CN
origin:         AS7497
mnt-by:         MAINT-CSTNET-CN
last-modified:  2023-10-06T05:09:24Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.76.192.0/21

Range	ASN	Company	Num of IPs
210.76.192.0/19	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	8,192

Nearby Ranges

BGP prefixes that overlap with 210.76.0.0/16

Range	ASN	Company	Num of IPs
210.76.64.0/19	AS134773	Digital Guangdong Network Construction Co, Ltd	8,192
210.76.0.0/19	AS24137	HeNan Ping Coal Group	8,192
210.76.32.0/19	AS4837	The Science&Technology Information Center of Heilongjiang	8,192
210.76.192.0/19	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

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Pingable IPs

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

IP Address	ASN	Details
210.76.193.254	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`3.88ms` from Beijing, CN
210.76.195.136	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`4.47ms` from Beijing, CN
210.76.194.43	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`3.67ms` from Beijing, CN
210.76.192.78	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`4.02ms` from Beijing, CN
210.76.196.34	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`3.72ms` from Beijing, CN
210.76.197.18	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`3.71ms` 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
5.107.143.229	AS5384 Emirates Internet	`3.97ms` from Al Fujairah City, AE
129.213.59.133	AS31898 Oracle Corporation	`0.25ms` from Ashburn, US
4.156.206.53	AS8075 Microsoft Corporation	`0.35ms` from Ashburn, US
176.241.82.85	AS57588 Hayat for Internet & communication LLC	`0.57ms` from Baghdad, IQ
61.19.155.229	AS9931 National Telecom Public Company Limited	`3.09ms` from Bangkok, TH
223.69.172.85	AS56048 China Mobile Communicaitons Corporation	`5.43ms` from Beijing, CN
170.254.165.165	AS52372 COOPERATIVA ELECTRICA DE GENERAL DEHEZA LTDA.	`11.11ms` from Buenos Aires, AR
41.249.238.21	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`6.48ms` from Casablanca, MA
23.64.253.229	AS16625 Akamai Technologies, Inc.	`0.93ms` from Chicago, US
208.73.118.5	AS19586 First City Internet, LLC	`15.74ms` from Dallas, US
87.38.144.245	AS1213 ASIERA TECHNOLOGY SERVICES CLG	`4.27ms` from Dublin, IE
85.227.215.197	AS8434 Telenor Sverige AB	`7.11ms` from Falkenberg, SE
36.63.221.149	AS4134 CHINANET-BACKBONE	`4.10ms` from Huai'an, CN
1.240.75.213	AS9318 SK Broadband Co Ltd	`1.66ms` from Incheon, KR
123.233.30.133	AS4837 CHINA UNICOM China169 Backbone	`3.38ms` from Jinan, CN
69.104.162.149	AS7018 AT&T Enterprises, LLC	`1.71ms` from Los Angeles, US
122.53.84.5	AS9299 Philippine Long Distance Telephone Company	`1.12ms` from Manila, PH
209.122.202.21	AS6079 RCN	`3.95ms` from New York City, US
4.28.161.181	AS3356 Level 3 Parent, LLC	`0.52ms` from Orlando, US
153.226.117.133	AS4713 NTT DOCOMO BUSINESS,Inc.	`8.39ms` from Osaka, JP
189.86.255.69	AS4230 CLARO S.A.	`0.34ms` from Porto Alegre, BR
69.223.89.53	AS7018 AT&T Enterprises, LLC	`11.96ms` from San Jose, US
218.108.212.21	AS24139 Huashu media&Network Limited	`6.71ms` from Shanghai, CN
200.204.205.245	AS27699 TELEFÔNICA BRASIL S.A	`1.46ms` from São Paulo, BR
120.124.89.101	AS1659 Taiwan Academic Network (TANet) Information Center	`1.62ms` from Taipei, TW

Traceroute

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

traceroute -a -n -q1 -f6 210.76.193.95

traceroute to 210.76.193.95 (210.76.193.95): 64 hops max, 52 byte packets

6 [AS7497] 103.2.211.128 5.26 ms

7 [AS7497] 159.226.254.89 4.171 ms

8 *

9 *

10 *

11 *

12 [AS7497] 210.76.193.95 4.634 ms

Measurement taken from

IPinfo ProbeNet in Beijing, CN

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.

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