210.76.200.0/21

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:         [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:          210.76.192.0/19
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 210.76.200.0/21

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
210.76.203.3	gscas.ac.cn	1
210.76.203.69	gkderstatistics.site	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

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

IP Address	ASN	Details
210.76.204.64	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`4.08ms` from Beijing, CN
210.76.203.153	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`3.70ms` from Beijing, CN
210.76.200.71	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`3.78ms` 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
131.203.32.21	AS9790 Two Degrees Networks Limited	`0.69ms` from Auckland, NZ
111.163.171.197	AS4837 CHINA UNICOM China169 Backbone	`6.85ms` from Beijing, CN
2.204.170.21	AS3209 Vodafone GmbH	`4.27ms` from Duesseldorf, DE
168.232.80.197	AS264936 FIBRA ONDA MAIS LTDA	`18.99ms` from Fortaleza, BR
45.168.49.5	AS268037 OK NET INFOR LTDA	`13.84ms` from Fortaleza, BR
91.155.49.37	AS719 Elisa Oyj	`3.19ms` from Helsinki, FI
47.76.29.5	AS45102 Alibaba (US) Technology Co., Ltd.	`0.71ms` from Hong Kong, HK
20.193.252.37	AS8075 Microsoft Corporation	`0.20ms` from Lohogaon, IN
166.62.141.133	AS5769 Videotron Ltee	`10.20ms` from Montreal, CA
219.232.88.133	AS63581 GUANGXI RADIO & TELEVISION INFORMATION NETWORK CO.,LTD.	`14.69ms` from Nanning, CN
60.107.164.21	AS17676 SoftBank Corp.	`3.52ms` from Osaka, JP
150.31.169.37	AS2497 Internet Initiative Japan Inc.	`2.30ms` from Osaka, JP
54.144.1.213	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
182.127.81.197	AS4837 CHINA UNICOM China169 Backbone	`7.54ms` from Zhengzhou, CN
69.169.93.21	AS29838 Atlantic Metro Communications II, Inc.	`0.55ms` from Ashburn, US
35.206.134.37	AS15169 Google LLC	`0.17ms` from Brussels, BE
173.236.48.165	AS32475 Internap Holding LLC	`0.88ms` from Chicago, US
49.168.209.181	AS17858 LG POWERCOMM	`2.09ms` from Incheon, KR
154.70.228.165	AS37239 ICTGlobe Management (Pty) Ltd	`0.21ms` from Johannesburg, ZA
94.13.183.197	AS5607 Sky UK Limited	`7.53ms` from London, GB
80.44.220.133	AS13285 TalkTalk Communications Limited	`3.74ms` from Manchester, GB
80.84.19.149	AS6774 Belgacom International Carrier Services SA	`0.52ms` from Marseille, FR
98.80.184.165	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
109.124.212.37	AS35032 LLC SIP "NIS"	`0.68ms` from Samara, RU
130.46.96.5	AS84 Navy Network Information Center (NNIC)	`2.70ms` from Ashburn, US

Traceroute

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

traceroute -a -n -q1 -f6 210.76.203.134

traceroute to 210.76.203.134 (210.76.203.134): 64 hops max, 52 byte packets

6 [AS7497] 103.2.211.128 7.128 ms

7 [AS7497] 159.226.254.89 3.395 ms

8 [AS7497] 159.226.254.162 3.758 ms

9 *

10 *

11 *

12 *

13 [AS7497] 210.76.203.134 3.588 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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