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
210.75.252.136	bit-health.com	1
210.75.252.41	sfchenlab.com	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

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

IP Address	ASN	Details
210.75.252.109	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`6.59ms` from Guangzhou, CN
210.75.253.1	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`6.79ms` 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
122.58.14.71	AS4771 Spark New Zealand Trading Ltd.	`0.86ms` from Auckland, NZ
76.127.209.103	AS7922 Comcast Cable Communications, LLC	`9.99ms` from Boston, US
189.174.31.71	AS8151 UNINET	`12.33ms` from Cancún, MX
24.93.105.183	AS10796 Charter Communications Inc	`9.43ms` from Columbus, US
85.8.107.55	AS9145 EWE TEL GmbH	`7.24ms` from Frankfurt am Main, DE
78.146.132.199	AS13285 TalkTalk Communications Limited	`3.78ms` from London, GB
80.14.1.55	AS3215 Orange S.A.	`1.56ms` from Paris, FR
77.108.240.135	AS35728 MTS PJSC	`8.40ms` from Samara, RU
98.36.229.7	AS7922 Comcast Cable Communications, LLC	`8.84ms` from San Jose, US
189.199.232.215	AS262916 Mega Cable, S.A. de C.V.	`9.00ms` from Santiago de Querétaro, MX
74.113.177.231	AS46920 RF Now Inc.	`12.13ms` from Saskatoon, CA
125.135.139.151	AS4766 Korea Telecom	`7.08ms` from Seoul, KR
220.134.22.119	AS3462 Data Communication Business Group	`1.07ms` from Taipei, TW
117.72.8.183	AS141679 China Telecom Beijing Tianjin Hebei Big Data Industry Park Branch	`0.26ms` from Tianjin, CN
153.163.72.247	AS4713 NTT DOCOMO BUSINESS,Inc.	`9.84ms` from Tokyo, JP
102.26.20.7	AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom)	`10.87ms` from Tunis, TN
43.174.45.23	AS139341 ACE	`0.19ms` from Ashburn, US
208.114.51.7	AS46616 Westinghouse Electric Company LLC	`7.79ms` from Ashburn, US
52.89.106.23	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
171.220.247.7	AS4134 CHINANET-BACKBONE	`2.23ms` from Chengdu, CN
18.191.108.183	AS16509 Amazon.com, Inc.	`0.18ms` from Columbus, US
92.79.171.103	AS3209 Vodafone GmbH	`0.87ms` from Hamburg, DE
118.68.106.23	AS18403 FPT Telecom Company	`6.64ms` from Hanoi, VN
123.21.161.55	AS45899 VNPT Corp	`1.49ms` from Ho Chi Minh City, VN
73.55.171.71	AS7922 Comcast Cable Communications, LLC	`4.76ms` from Houston, US

Traceroute

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

traceroute -a -n -q1 -f4 210.75.252.112

traceroute to 210.75.252.112 (210.75.252.112): 64 hops max, 52 byte packets

4 [] 103.45.0.53 1.644 ms

5 *

6 [AS4134] 183.56.187.157 3.622 ms

7 *

8 *

9 *

10 *

11 [AS4134] 202.105.95.19 5.985 ms

12 [AS7497] 159.226.253.157 5.454 ms

13 *

14 [AS7497] 210.75.252.112 7.838 ms

Measurement taken from

IPinfo ProbeNet in Guangzhou, CN

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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