210.73.16.0/20

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 210.73.0.0/18
Registry APNIC
ID CSTNET-CN

WHOIS Details

inetnum:        210.73.0.0 - 210.73.63.255
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:          210.73.0.0/18
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:  2023-10-06T05:09:23Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.73.16.0/20

Range ASN Company Num of IPs
210.73.0.0/18 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 16,384

Nearby Ranges

BGP prefixes that overlap with 210.73.0.0/16

Range ASN Company Num of IPs
210.73.0.0/18 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 16,384
210.73.64.0/19 AS18239 (CPIP)Beijing Information Highway Corp 8,192
210.73.128.0/19 AS4134 Wucheng District of Jinhua City huan cheng 8,192
210.73.160.0/19 AS45090 Tencent cloud computing (Beijing) Co., Ltd. 8,192
210.73.224.0/19 AS4808 Shanghai Hongmao Information Technology Co. Ltd 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
210.73.31.4 supermc.cn 1
210.73.27.74 nucloud.org.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

Pingable IPs

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

IP Address ASN Details
210.73.22.237 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 18.62ms from Beijing, CN
210.73.31.139 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 18.76ms from Beijing, CN
210.73.18.21 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 18.50ms from Beijing, CN
210.73.23.207 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 16.91ms from Beijing, CN
210.73.26.25 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 19.27ms from Beijing, CN
210.73.29.1 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 19.21ms from Beijing, CN
210.73.24.18 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 18.60ms from Beijing, CN
210.73.30.1 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 17.25ms from Beijing, CN
210.73.16.11 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 19.37ms from Beijing, CN
210.73.28.3 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 19.04ms from Beijing, CN
210.73.27.90 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 18.71ms 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
14.245.219.196 AS45899 VNPT Corp 5.51ms from Da Nang, VN
35.207.137.20 AS15169 Google LLC 0.11ms from Frankfurt am Main, DE
202.175.28.4 AS4609 Companhia de Telecomunicacoes de Macau SARL 1.80ms from Hong Kong, HK
82.223.185.4 AS8560 IONOS SE 0.61ms from Logrono, ES
92.25.83.84 AS13285 TalkTalk Communications Limited 6.89ms from London, GB
217.35.171.196 AS2856 British Telecommunications PLC 0.86ms from London, GB
138.4.178.84 AS766 RedIRIS Autonomous System 0.69ms from Madrid, ES
147.10.224.148 AS135887 Belong (Telstra Limited) 4.69ms from Melbourne, AU
194.85.129.116 AS3216 PJSC "Vimpelcom" 0.57ms from Moscow, RU
91.230.53.100 AS8595 OOO WestCall Ltd. 1.10ms from Moscow, RU
126.49.90.84 AS17676 SoftBank Corp. 9.62ms from Osaka, JP
51.57.78.68 AS8075 Microsoft Corporation 0.20ms from Phoenix, US
189.231.120.244 AS8151 UNINET 15.08ms from Phoenix, US
27.205.132.100 AS4837 CHINA UNICOM China169 Backbone 5.92ms from Qingdao, CN
18.136.159.116 AS16509 Amazon.com, Inc. 0.12ms from Singapore, SG
114.181.191.68 AS4713 NTT DOCOMO BUSINESS,Inc. 11.33ms from Tokyo, JP
193.115.94.212 AS7545 TPG Telecom Limited 11.46ms from Adelaide, AU
109.242.106.212 AS25472 Nova Telecommunications & Media Single Member S.A 12.61ms from Athens, GR
35.184.126.164 AS396982 Google LLC 0.12ms from Council Bluffs, US
47.218.107.212 AS19108 Optimum 8.63ms from Dallas, US
47.113.230.4 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.21ms from Heyuan, CN
213.230.208.68 AS25098 Netcalibre Ltd 0.63ms from London, GB
106.70.82.196 AS4804 Microplex PTY LTD 2.07ms from Melbourne, AU
74.204.196.100 AS17088 Currenex, Inc. 1.00ms from New York City, US
62.77.77.228 AS13036 T-Mobile Czech Republic a.s. 3.83ms from Prague, CZ

Traceroute

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

$
traceroute -a -n -q1 210.73.30.22
traceroute to 210.73.30.22 (210.73.30.22): 64 hops max, 52 byte packets
1 [AS136258] 23.95.72.1 0.397 ms
2 *
3 *
4 *
5 [AS174] 154.54.0.165 0.93 ms
6 [AS174] 154.54.0.6 142.715 ms
7 [AS174] 154.18.9.165 150.223 ms
8 [AS7497] 159.226.254.229 174.952 ms
9 *
10 [AS7497] 159.226.254.150 185.817 ms
11 [AS7497] 159.226.253.190 201.728 ms
12 [AS7497] 210.73.30.22 197.892 ms
Measurement taken from IPinfo ProbeNet in Los Angeles, US
On

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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