210.73.54.0/23

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:  2025-11-18T00:35:26Z
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:          210.73.0.0/18
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 210.73.54.0/23

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
210.73.128.0/19	AS4134	Wucheng District of Jinhua City huan cheng	8,192
210.73.64.0/19	AS18239	(CPIP)Beijing Information Highway Corp	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
210.73.208.0/20	AS4134	Beijing capitalonline data service co.,LTD	4,096
210.73.208.0/20	AS4808	Beijing capitalonline data service co.,LTD	4,096

Hosted domains

There are no domains currently hosted on this ASN.

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

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

IP Address	ASN	Details
210.73.54.8	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`4.24ms` from Tianjin, CN
210.73.55.9	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`3.63ms` 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
60.0.235.215	AS4837 CHINA UNICOM China169 Backbone	`14.03ms` from Beijing, CN
43.138.152.167	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.98ms` from Guangzhou, CN
113.183.136.23	AS45899 VNPT Corp	`2.77ms` from Ho Chi Minh City, VN
12.14.75.39	AS7018 AT&T Enterprises, LLC	`1.61ms` from Houston, US
158.143.45.39	AS786 Jisc Services Limited	`0.97ms` from London, GB
2.103.33.247	AS13285 TalkTalk Communications Limited	`1.97ms` from Manchester, GB
49.188.113.55	AS4804 Microplex PTY LTD	`3.79ms` from Melbourne, AU
151.67.206.71	AS1267 WIND TRE S.P.A.	`5.72ms` from Milan, IT
91.172.17.135	AS12322 Free SAS	`6.39ms` from Paris, FR
172.70.57.71	AS14789 Cloudflare, Inc.	`1.12ms` from Petaẖ Tiqva, IL
57.154.37.7	AS8075 Microsoft Corporation	`0.16ms` from Phoenix, US
112.232.42.39	AS4837 CHINA UNICOM China169 Backbone	`6.18ms` from Qingdao, CN
151.73.193.183	AS1267 WIND TRE S.P.A.	`7.26ms` from Rome, IT
119.210.86.55	AS4766 Korea Telecom	`5.95ms` from Seoul, KR
60.53.66.71	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`6.42ms` from Singapore, SG
131.247.2.135	AS5661 UNIVERSITY OF SOUTH FLORIDA	`1.24ms` from Tampa, US
27.98.62.103	AS10010 TOKAI Communications Corporation	`9.73ms` from Tokyo, JP
142.168.33.167	AS19190 TELUS Communications Inc.	`0.06ms` from Ashburn, US
173.31.247.119	AS30036 Mediacom Communications Corp	`10.60ms` from Atlanta, US
34.127.214.135	AS396982 Google LLC	`0.27ms` from Brussels, BE
109.129.244.183	AS5432 Proximus NV	`2.07ms` from Brussels, BE
93.178.143.231	AS3292 TDC Holding A/S	`1.86ms` from Copenhagen, DK
209.189.230.7	AS19366 Managed Network Solutions, Inc.	`3.35ms` from Dallas, US
67.176.21.151	AS7922 Comcast Cable Communications, LLC	`6.64ms` from Denver, US
137.59.148.231	AS46606 Unified Layer	`1.56ms` from Draper, US

Traceroute

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

traceroute -a -n -q1 -f3 210.73.54.8

traceroute to 210.73.54.8 (210.73.54.8): 64 hops max, 52 byte packets

3 [AS749] 11.254.129.1 1.059 ms

4 [AS749] 11.62.83.169 1.581 ms

5 *

6 [AS141679] 106.63.0.165 1.066 ms

7 [AS141679] 106.63.121.109 12.134 ms

8 *

9 *

10 [AS4134] 202.97.92.2 4.23 ms

11 [AS7497] 159.226.254.73 4.848 ms

12 [AS7497] 159.226.254.98 5.84 ms

13 *

14 *

15 *

16 [AS7497] 210.73.54.8 5.494 ms

Measurement taken from

IPinfo ProbeNet in Tianjin, CN

On January 20th 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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