210.72.19.0/24

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 210.72.19.0/24

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

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

IP Address	ASN	Details
210.72.19.185	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`27.97ms` 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
97.231.78.104	AS6167 Verizon Business	`16.05ms` from Ashburn, US
34.78.240.248	AS396982 Google LLC	`0.13ms` from Brussels, BE
24.242.62.72	AS11427 Charter Communications Inc	`10.15ms` from Dallas, US
47.189.247.152	AS5650 Frontier Communications of America, Inc.	`2.23ms` from Dallas, US
124.105.49.232	AS9299 Philippine Long Distance Telephone Company	`1.32ms` from Manila, PH
89.89.210.152	AS5410 Bouygues Telecom SA	`7.23ms` from Marseille, FR
2.47.133.168	AS30722 Vodafone Italia S.p.A.	`0.97ms` from Milan, IT
79.52.237.232	AS3269 Telecom Italia S.p.A.	`4.81ms` from Naples, IT
149.61.218.152	AS23171 Manhattan College	`2.55ms` from New York City, US
104.164.158.24	AS3561 CenturyLink Communications, LLC	`6.70ms` from New York City, US
54.174.101.56	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
73.116.194.232	AS7922 Comcast Cable Communications, LLC	`4.43ms` from San Jose, US
23.57.67.168	AS20940 Akamai International B.V.	`11.14ms` from Sydney, AU
61.52.81.56	AS4837 CHINA UNICOM China169 Backbone	`2.10ms` from Zhengzhou, CN
13.248.203.136	AS16509 Amazon.com, Inc.	`0.04ms` from Bangkok, TH
66.16.250.8	AS7029 Windstream Communications LLC	`0.63ms` from Chicago, US
84.190.159.152	AS3320 Deutsche Telekom AG	`6.74ms` from Frankfurt am Main, DE
89.89.15.72	AS5410 Bouygues Telecom SA	`7.13ms` from Frankfurt am Main, DE
125.163.17.120	AS7713 PT Telekomunikasi Indonesia	`2.17ms` from Jakarta, ID
130.0.237.88	AS15626 GREEN FLOID LLC	`0.37ms` from Kyiv, UA
112.70.246.152	AS17511 OPTAGE Inc.	`2.60ms` from Osaka, JP
15.228.228.24	AS16509 Amazon.com, Inc.	`0.12ms` from Osasco, BR
124.133.186.152	AS4837 CHINA UNICOM China169 Backbone	`5.84ms` from Qingdao, CN
187.233.232.168	AS8151 UNINET	`11.96ms` from Santiago de Queretaro, MX
222.118.248.152	AS4766 Korea Telecom	`4.56ms` 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 -f8 210.72.19.216

traceroute to 210.72.19.216 (210.72.19.216): 64 hops max, 52 byte packets

8 [AS7497] 103.2.211.132 5.58 ms

9 [AS7497] 159.226.254.89 5.593 ms

10 [AS7497] 159.226.254.154 5.248 ms

11 *

12 [AS7497] 210.72.19.216 29.814 ms

Measurement taken from

IPinfo ProbeNet in Beijing, 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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