210.75.252.0/23

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	210.75.224.0/19
Registry	APNIC
ID	CSTNET-CN

WHOIS Details

inetnum:        210.75.224.0 - 210.75.255.255
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:  2023-10-10T01:35:49Z
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:          210.75.224.0/19
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:  2023-10-06T05:09:24Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.75.252.0/23

Range	ASN	Company	Num of IPs
210.75.224.0/19	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	8,192

Nearby Ranges

BGP prefixes that overlap with 210.75.0.0/16

Range	ASN	Company	Num of IPs
210.75.192.0/19	AS18239	China Internet Network Information Center	8,192
210.75.224.0/19	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	8,192

Hosted domains

There are 6 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
210.75.252.109	mmlab.ac.cn	3
210.75.252.136	bit-health.com	1
210.75.252.41	sfchenlab.com	1
210.75.252.59	healthmobile.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

Read more

Pingable IPs

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

IP Address	ASN	Details
210.75.253.1	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`6.91ms` from Guangzhou, CN
210.75.252.109	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`6.47ms` from Guangzhou, 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
101.201.52.231	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.08ms` from Beijing, CN
181.61.5.23	AS10620 Telmex Colombia S.A.	`9.11ms` from Bogotá, CO
172.193.60.135	AS8075 Microsoft Corporation	`0.23ms` from Boydton, US
59.92.39.55	AS9829 National Internet Backbone	`12.02ms` from Chennai, IN
107.128.251.119	AS7018 AT&T Enterprises, LLC	`11.52ms` from Chicago, US
185.237.187.231	AS211808 APROOP TELECOM S.L.U	`6.13ms` from Madrid, ES
35.186.245.119	AS396982 Google LLC	`0.07ms` from Melbourne, AU
138.41.9.7	AS137 Consortium GARR	`11.64ms` from Rome, IT
76.126.74.199	AS7922 Comcast Cable Communications, LLC	`5.91ms` from San Jose, US
189.199.232.215	AS262916 Mega Cable, S.A. de C.V.	`9.00ms` from Santiago de Querétaro, MX
175.162.216.167	AS4837 CHINA UNICOM China169 Backbone	`9.08ms` from Tieling, CN
223.221.165.231	AS140061 Qinghai Telecom	`1.63ms` from Xining, CN
97.180.190.23	AS6167 Verizon Business	`10.03ms` from Atlanta, US
110.231.9.215	AS4837 CHINA UNICOM China169 Backbone	`9.58ms` from Beijing, CN
44.246.178.167	AS16509 Amazon.com, Inc.	`0.13ms` from Boardman, US
213.198.85.199	AS2914 NTT America, Inc.	`0.71ms` from Frankfurt am Main, DE
123.17.13.87	AS45899 VNPT Corp	`5.82ms` from Hanoi, VN
116.71.97.151	AS17557 Pakistan Telecommunication Company Limited	`2.15ms` from Karachi, PK
93.108.219.55	AS12353 Vodafone Portugal	`2.51ms` from Lisbon, PT
94.99.229.103	AS25019 Saudi Telecom Company JSC	`3.25ms` from Riyadh, SA
179.57.108.231	AS14117 Telefonica del Sur S.A.	`14.65ms` from Santiago, CL
121.171.59.199	AS4766 Korea Telecom	`1.19ms` from Seoul, KR
41.102.135.7	AS36947 Telecom Algeria	`13.97ms` from Valencia, ES
216.18.65.151	AS577 Bell Canada	`3.94ms` from Vancouver, CA
124.163.187.71	AS4837 CHINA UNICOM China169 Backbone	`14.22ms` from Zhengzhou, CN

Traceroute

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

traceroute -a -n -q1 -f2 210.75.253.159

traceroute to 210.75.253.159 (210.75.253.159): 64 hops max, 52 byte packets

2 [AS4837] 139.214.220.254 1.278 ms

3 *

4 [AS4837] 122.141.227.33 2.052 ms

5 *

6 [AS4837] 139.215.222.173 1.208 ms

7 *

8 *

9 *

10 [AS4837] 219.158.33.150 19.368 ms

11 [AS7497] 159.226.254.69 18.065 ms

12 [AS7497] 159.226.254.142 18.04 ms

13 *

14 [AS7497] 210.75.253.159 50.181 ms

Measurement taken from

IPinfo ProbeNet in Changchun, 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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