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:         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:  2025-07-25T01:16:40Z
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:          210.73.0.0/18
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:  2023-10-06T05:09:23Z
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
210.73.224.0/19	AS4808	Shanghai Hongmao Information Technology Co. Ltd	8,192
210.73.192.0/19	AS4134	Beijing capitalonline data service co.,LTD	8,192
210.73.160.0/19	AS45090	Tencent cloud computing (Beijing) Co., Ltd.	8,192
210.73.128.0/19	AS4134	Wucheng District of Jinhua City huan cheng	8,192
210.73.96.0/20	AS7640	CITIC Group Management Information Department	4,096
210.73.112.0/20	AS4808	CITIC Group Management Information Department	4,096
210.73.176.0/20	AS45090	Tencent cloud computing (Beijing) Co., Ltd.	4,096
210.73.192.0/22	AS4812	CNLink Network Technology Ltd.	1,024
210.73.32.0/22	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	1,024
210.73.62.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.73.50.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.73.2.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.73.54.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.73.56.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.73.40.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.73.6.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.15.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.60.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.7.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.4.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.48.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.52.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.5.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.1.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.36.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.12.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.10.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.61.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.59.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256

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

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Pingable IPs

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

IP Address	ASN	Details
210.73.24.13	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	17.89ms from Beijing, CN
210.73.28.3	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	20.42ms from Beijing, CN
210.73.16.11	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	19.94ms from Beijing, CN
210.73.26.24	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	20.15ms from Beijing, CN
210.73.23.6	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	16.80ms from Beijing, CN
210.73.18.8	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	17.89ms from Beijing, CN
210.73.31.68	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	18.47ms from Beijing, CN
210.73.22.129	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	19.20ms from Beijing, CN
210.73.27.75	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	18.82ms from Tianjin, CN
210.73.30.1	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	16.81ms 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
2.16.158.148	AS20940 Akamai International B.V.	0.12ms from Al Fujairah City, AE
176.205.73.20	AS5384 Emirates Internet	2.78ms from Al Fujairah City, AE
23.96.219.116	AS8075 Microsoft Corporation	0.42ms from Chicago, US
130.235.56.228	AS2846 Lund University	2.41ms from Copenhagen, DK
113.45.152.164	AS55990 Huawei Cloud Service data center	1.75ms from Guangzhou, CN
189.188.191.116	AS8151 UNINET	4.33ms from Santiago de Queretaro, MX
116.120.47.196	AS9318 SK Broadband Co Ltd	1.71ms from Seoul, KR
20.160.13.196	AS8075 Microsoft Corporation	0.22ms from Amsterdam, NL
141.80.169.4	AS210482 Max-Delbrueck-Centrum fuer Molekulare Medizin in der Helmholtz-Gemeinschaft	1.49ms from Berlin, DE
84.130.69.116	AS3320 Deutsche Telekom AG	4.57ms from Berlin, DE
42.176.219.132	AS4837 CHINA UNICOM China169 Backbone	10.90ms from Liaoyang, CN
122.121.91.100	AS3462 Data Communication Business Group	5.56ms from Taichung, TW
94.157.102.36	AS50266 Odido Netherlands B.V.	3.82ms from Amsterdam, NL
172.241.71.100	AS7979 Servers.com, Inc.	0.36ms from Amsterdam, NL
114.241.104.180	AS4808 China Unicom Beijing Province Network	4.11ms from Beijing, CN
185.223.211.100	AS39825 Sparkinit S.r.l.	0.78ms from Milan, IT
59.6.135.84	AS4766 Korea Telecom	0.84ms from Seoul, KR
34.27.73.100	AS396982 Google LLC	0.11ms from Council Bluffs, US
18.161.165.180	AS16509 Amazon.com, Inc.	0.54ms from Dallas, US
88.245.87.4	AS9121 Turk Telekomunikasyon Anonim Sirketi	6.58ms from Izmir, TR
79.33.3.84	AS3269 Telecom Italia S.p.A.	11.95ms from Milan, IT
177.105.137.20	AS28634 Life Tecnologia Ltda.	8.20ms from Sao Paulo, BR
4.198.189.228	AS8075 Microsoft Corporation	0.69ms from Sydney, AU
66.30.122.36	AS7922 Comcast Cable Communications, LLC	5.30ms from Boston, US
78.99.127.180	AS6855 Slovak Telekom, a.s.	4.56ms from Bratislava, SK

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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