210.72.22.0/24

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	210.72.0.0/17
Registry	APNIC
ID	CSTNET-CN

WHOIS Details

inetnum:        210.72.0.0 - 210.72.127.255
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:          210.72.0.0/17
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:  2023-10-06T05:09:22Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.72.22.0/24

Range	ASN	Company	Num of IPs
210.72.0.0/17	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	32,768

Nearby Ranges

BGP prefixes that overlap with 210.72.0.0/16

Range	ASN	Company	Num of IPs
210.72.0.0/17	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	32,768
210.72.160.0/19	AS4808	China Internet Network Information Center	8,192
210.72.192.0/19	AS4808	Communication Center, China Aerospace	8,192
210.72.128.0/19	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	8,192

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

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

IP Address	ASN	Details
210.72.22.229	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`19.88ms` 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
196.64.3.200	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`2.06ms` from Casablanca, MA
23.127.2.56	AS7018 AT&T Enterprises, LLC	`11.37ms` from Chicago, US
34.252.35.232	AS16509 Amazon.com, Inc.	`0.14ms` from Dublin, IE
18.158.175.232	AS16509 Amazon.com, Inc.	`0.14ms` from Frankfurt am Main, DE
122.100.139.72	AS4609 Companhia de Telecomunicacoes de Macau SARL	`2.55ms` from Hong Kong, HK
176.142.169.216	AS5410 Bouygues Telecom SA	`6.85ms` from Lyon, FR
2.102.119.40	AS13285 TalkTalk Communications Limited	`1.22ms` from Manchester, GB
45.223.1.104	AS19551 Incapsula Inc	`0.16ms` from Miami, US
193.47.65.88	AS202507 BARBIERI PASQUALE & C. trading as GROUPMEDIA SAS	`11.08ms` from Rome, IT
115.19.17.232	AS4766 Korea Telecom	`8.27ms` from Seoul, KR
179.93.246.120	AS26599 TELEFÔNICA BRASIL S.A	`3.47ms` from São Paulo, BR
99.253.57.24	AS812 Rogers Communications Canada Inc.	`4.63ms` from Toronto, CA
41.103.209.40	AS36947 Telecom Algeria	`13.24ms` from Valencia, ES
83.134.190.216	AS5432 Proximus NV	`2.37ms` from Brussels, BE
174.111.193.120	AS11426 Charter Communications Inc	`6.86ms` from Charlotte, US
184.58.3.8	AS10796 Charter Communications Inc	`5.57ms` from Columbus, US
83.182.129.104	AS1257 Tele2 Sverige AB	`3.75ms` from Copenhagen, DK
199.91.38.120	AS14626 Columbia/HCA Healthcare, Inc.	`1.67ms` from Dallas, US
125.211.115.72	AS4837 CHINA UNICOM China169 Backbone	`4.90ms` from Harbin, CN
124.53.239.232	AS17858 LG POWERCOMM	`2.03ms` from Incheon, KR
94.61.170.88	AS12353 Vodafone Portugal	`6.10ms` from Lisbon, PT
217.43.61.72	AS2856 British Telecommunications PLC	`3.01ms` from London, GB
76.82.106.104	AS20001 Charter Communications Inc	`6.43ms` from Los Angeles, US
64.168.186.120	AS7018 AT&T Enterprises, LLC	`1.73ms` from Los Angeles, US
185.8.196.184	AS202613 Aruba S.p.A.	`3.23ms` from Milan, IT

Traceroute

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

traceroute -a -n -q1 -f3 210.72.22.1

traceroute to 210.72.22.1 (210.72.22.1): 64 hops max, 52 byte packets

3 [AS23522] 66.252.0.230 1.396 ms

4 *

5 *

6 [AS3491] 63.220.198.25 201.85 ms

7 [AS7497] 159.226.254.229 230.126 ms

8 [AS7497] 159.226.254.65 226.999 ms

9 [AS7497] 159.226.254.150 221.361 ms

10 [AS7497] 159.226.253.206 238.897 ms

11 [AS7497] 210.72.22.1 241.381 ms

Measurement taken from

IPinfo ProbeNet in Chicago, US

On January 9th 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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