210.73.32.0/22

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 210.73.32.0/22

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 is 1 domain name hosted across 1 IP address 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

Read more

Pingable IPs

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

IP Address	ASN	Details
210.73.35.250	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`48.11ms` 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
178.116.4.54	AS6848 Telenet BV	`10.05ms` from Amsterdam, NL
18.224.30.70	AS16509 Amazon.com, Inc.	`0.16ms` from Columbus, US
18.202.232.150	AS16509 Amazon.com, Inc.	`0.41ms` from Dublin, IE
91.23.209.214	AS3320 Deutsche Telekom AG	`6.66ms` from Frankfurt am Main, DE
92.27.17.6	AS13285 TalkTalk Communications Limited	`3.86ms` from London, GB
87.221.142.102	AS12479 Orange Espagne SA	`11.33ms` from Madrid, ES
126.29.226.86	AS17676 SoftBank Corp.	`8.09ms` from Osaka, JP
60.150.173.54	AS17676 SoftBank Corp.	`4.03ms` from Osaka, JP
153.167.231.6	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.53ms` from Osaka, JP
5.163.231.118	AS25019 Saudi Telecom Company JSC	`1.45ms` from Riyadh, SA
88.90.173.166	AS2119 Telenor Norge AS	`7.47ms` from Sandefjord, NO
14.75.162.6	AS4766 Korea Telecom	`7.83ms` from Seoul, KR
126.36.153.22	AS17676 SoftBank Corp.	`3.60ms` from Tokyo, JP
124.211.136.6	AS2516 KDDI CORPORATION	`5.66ms` from Tokyo, JP
1.199.229.198	AS4134 CHINANET-BACKBONE	`9.29ms` from Zhengzhou, CN
50.126.231.230	AS5650 Frontier Communications of America, Inc.	`12.33ms` from Ashburn, US
192.76.162.22	AS24989 Equinix (Germany) GmbH	`7.43ms` from Frankfurt am Main, DE
136.228.16.22	AS31898 Oracle Corporation	`0.17ms` from Jerusalem, IL
62.76.193.166	AS34017 FEDERAL STATE BUDGETARY INSTITUTION OF SCIENCES KHABAROVSK FEDERAL RESEARCH CENTER OF THE FAR EASTERN BRANCH OF THE RUSSIAN ACADEMY OF SCIENCES	`1.66ms` from Khabarovsk, RU
173.163.222.134	AS7922 Comcast Cable Communications, LLC	`9.78ms` from Miami, US
50.213.147.102	AS7922 Comcast Cable Communications, LLC	`7.98ms` from Murfreesboro, US
201.26.52.38	AS27699 TELEFÔNICA BRASIL S.A	`1.93ms` from Osasco, BR
189.181.241.166	AS8151 UNINET	`5.70ms` from Santiago de Queretaro, MX
38.45.134.70	AS174 Cogent Communications, LLC	`0.14ms` from Seattle, US
180.69.65.198	AS9318 SK Broadband Co Ltd	`2.20ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f5 -m12 210.73.34.133

traceroute to 210.73.34.133 (210.73.34.133): 12 hops max, 52 byte packets

5 [AS6453] 116.0.77.81 2.152 ms

6 [AS6453] 116.0.77.17 2.406 ms

7 [AS3491] 63.220.66.128 38.262 ms

8 [AS3491] 63.220.198.25 39.126 ms

9 [AS7497] 159.226.254.229 71.224 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On December 6th 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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