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:         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 210.76.200.0/21

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

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

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

IP Address	ASN	Details
210.76.203.175	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`3.67ms` from Beijing, CN
210.76.200.71	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`3.60ms` 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
46.103.215.133	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`1.14ms` from Athens, GR
216.210.101.245	AS19662 Uniserve On Line	`0.24ms` from Calgary, CA
199.38.238.37	AS396125 CCL Networks Inc	`0.15ms` from Calgary, CA
96.80.241.5	AS7922 Comcast Cable Communications, LLC	`10.19ms` from Detroit, US
187.201.254.165	AS8151 UNINET	`0.95ms` from Guadalajara, MX
59.50.57.181	AS4134 CHINANET-BACKBONE	`3.41ms` from Haikou, CN
31.155.99.197	AS8386 Vodafone Net Iletisim Hizmetler AS	`15.08ms` from Istanbul, TR
51.94.73.229	AS16509 Amazon.com, Inc.	`5.66ms` from Madrid, ES
62.63.82.165	AS20985 ArtX LLC	`3.14ms` from Moscow, RU
43.239.54.101	AS133590 Wow Solutions and Systems Pvt Ltd	`0.54ms` from Mumbai, IN
202.181.69.5	AS58521 Garena Online Pte Ltd	`0.14ms` from Santiago, CL
50.216.198.53	AS7922 Comcast Cable Communications, LLC	`0.88ms` from Seattle, US
36.239.17.85	AS3462 Data Communication Business Group	`6.06ms` from Taichung, TW
61.183.250.53	AS4134 CHINANET-BACKBONE	`2.56ms` from Wuhan, CN
3.235.135.149	AS14618 Amazon.com, Inc.	`0.95ms` from Ashburn, US
73.113.214.197	AS7922 Comcast Cable Communications, LLC	`13.24ms` from Atlanta, US
203.144.255.5	AS7470 TRUE INTERNET Co.,Ltd.	`0.75ms` from Bangkok, TH
181.20.119.37	AS22927 Telefonica de Argentina	`2.19ms` from Buenos Aires, AR
37.1.214.5	AS29802 HIVELOCITY, Inc.	`0.63ms` from Chicago, US
79.142.43.133	AS205137 Ernsting's media GmbH	`4.21ms` from Duesseldorf, DE
154.220.227.21	AS9294 GNET INC.	`0.79ms` from Hong Kong, HK
114.229.66.53	AS4134 CHINANET-BACKBONE	`5.29ms` from Huai'an, CN
41.204.242.165	AS36911 DIRECT ON PC LTD	`0.49ms` from Lagos, NG
76.91.20.5	AS20001 Charter Communications Inc	`4.82ms` from Los Angeles, US
203.117.96.181	AS4657 StarHub Ltd	`1.41ms` 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 -f4 -m11 210.76.206.46

traceroute to 210.76.206.46 (210.76.206.46): 11 hops max, 52 byte packets

4 [AS3491] 63.220.66.128 338.589 ms

5 [AS3491] 63.220.198.25 329.738 ms

6 [AS7497] 159.226.254.229 370.645 ms

7 [AS7497] 159.226.254.237 370.525 ms

8 [AS7497] 159.226.254.162 370.714 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Accra, GH

On December 29th 2025

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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