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
210.73.64.0/19	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
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

8 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)	`2.72ms` from Beijing, CN
210.73.55.9	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`1.39ms` 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
131.96.103.215	AS10631 Georgia State University	`0.23ms` from Atlanta, US
24.2.230.199	AS7922 Comcast Cable Communications, LLC	`8.49ms` from Boston, US
174.110.229.167	AS11426 Charter Communications Inc	`8.73ms` from Charlotte, US
14.98.38.55	AS45820 Tata Teleservices ISP AS	`0.70ms` from Chennai, IN
13.89.104.199	AS8075 Microsoft Corporation	`0.33ms` from Des Moines, US
5.65.68.7	AS5607 Sky UK Limited	`5.33ms` from Erith, GB
67.64.177.247	AS7018 AT&T Enterprises, LLC	`1.39ms` from Houston, US
14.41.59.231	AS4766 Korea Telecom	`3.94ms` from Incheon, KR
5.58.102.55	AS16223 MAXNET TELECOM, LTD	`5.54ms` from Kyiv, UA
81.152.67.215	AS2856 British Telecommunications PLC	`3.94ms` from London, GB
37.68.155.215	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`14.86ms` from Paris, FR
90.120.154.151	AS3215 Orange S.A.	`13.56ms` from Paris, FR
45.79.83.23	AS63949 Akamai Connected Cloud	`0.30ms` from Santa Clara, US
137.132.210.231	AS7472 NUS Information Technology	`0.85ms` from Singapore, SG
213.235.255.87	AS8437 Hutchison Drei Austria GmbH	`1.36ms` from Vienna, AT
34.218.4.119	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
80.249.107.199	AS21396 NetConnex Broadband Ltd.	`0.44ms` from London, GB
82.10.141.167	AS5089 Virgin Media Limited	`6.58ms` from London, GB
51.92.62.135	AS16509 Amazon.com, Inc.	`6.11ms` from Madrid, ES
49.188.113.55	AS4804 Microplex PTY LTD	`3.01ms` from Melbourne, AU
62.108.226.199	AS25518 ZUCCHETTI SPA	`1.39ms` from Milan, IT
3.228.76.23	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
151.15.197.247	AS1267 WIND TRE S.P.A.	`3.32ms` from Rome, IT
95.255.63.7	AS3269 Telecom Italia S.p.A.	`7.62ms` from Rome, IT
190.121.9.135	AS14117 Telefonica del Sur S.A.	`5.12ms` from Santiago, CL

Traceroute

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

traceroute -a -n -q1 210.73.54.31

traceroute to 210.73.54.31 (210.73.54.31): 64 hops max, 52 byte packets

1 [AS15169] 72.14.236.39 1.259 ms

2 *

3 *

4 [AS3491] 63.220.198.25 1.577 ms

5 [AS7497] 159.226.254.229 34.994 ms

6 [AS7497] 159.226.254.65 37.816 ms

7 [AS7497] 159.226.254.94 33.844 ms

8 *

9 *

10 *

11 [AS7497] 210.73.54.31 34.193 ms

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On February 7th 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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