210.72.8.0/24

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 210.72.8.0/24

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 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
210.72.8.88	ipac13.org	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

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

IP Address	ASN	Details
210.72.8.92	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`9.25ms` from Huai'an, 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
169.47.180.248	AS36351 IBM Cloud	`0.52ms` from Ashburn, US
66.30.53.120	AS7922 Comcast Cable Communications, LLC	`12.42ms` from Boston, US
187.115.78.24	AS18881 TELEFÔNICA BRASIL S.A	`0.83ms` from Brasilia, BR
78.166.211.184	AS9121 Turk Telekomunikasyon Anonim Sirketi	`14.16ms` from Bursa, TR
90.230.247.72	AS3301 Telia Company AB	`1.43ms` from Copenhagen, DK
97.93.239.40	AS20115 Charter Communications LLC	`8.86ms` from Dallas, US
89.27.95.8	AS16086 DNA Oyj	`2.97ms` from Helsinki, FI
14.199.169.72	AS9269 Hong Kong Broadband Network Ltd.	`0.91ms` from Hong Kong, HK
76.108.233.72	AS7922 Comcast Cable Communications, LLC	`4.96ms` from Miami, US
43.240.66.200	AS133296 Web Werks India Pvt. Ltd.	`0.22ms` from Mumbai, IN
74.74.165.136	AS11351 Charter Communications Inc	`16.51ms` from New York City, US
120.11.35.248	AS4837 CHINA UNICOM China169 Backbone	`6.62ms` from Tianjin, CN
60.121.129.184	AS17676 SoftBank Corp.	`3.27ms` from Tokyo, JP
20.48.23.88	AS8075 Microsoft Corporation	`0.44ms` from Tokyo, JP
172.224.175.8	AS36183 Akamai Technologies, Inc.	`0.20ms` from Amsterdam, NL
75.228.88.88	AS6167 Verizon Business	`15.88ms` from Atlanta, US
34.214.62.104	AS16509 Amazon.com, Inc.	`0.20ms` from Boardman, US
185.136.110.8	AS210604 Pernix systems s.r.o.	`1.58ms` from Brno, CZ
175.23.179.72	AS4837 CHINA UNICOM China169 Backbone	`8.25ms` from Changchun, CN
73.177.114.200	AS7922 Comcast Cable Communications, LLC	`15.28ms` from Dallas, US
81.100.70.8	AS5089 Virgin Media Limited	`10.18ms` from Dublin, IE
78.48.224.104	AS6805 Telefonica Germany GmbH & Co.OHG	`3.06ms` from Duesseldorf, DE
88.169.138.104	AS12322 Free SAS	`5.76ms` from Paris, FR
71.223.35.200	AS209 CenturyLink Communications, LLC	`2.37ms` from Phoenix, US
2.193.129.120	AS16232 Telecom Italia S.p.A.	`15.72ms` from Rome, 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 210.72.8.35

traceroute to 210.72.8.35 (210.72.8.35): 64 hops max, 52 byte packets

3 [AS749] 7.152.4.82 1.68 ms

4 *

5 *

6 *

7 [AS147038] 60.164.37.165 0.715 ms

8 *

9 *

10 *

11 [AS7497] 159.226.253.161 31.686 ms

12 *

13 *

14 [AS7497] 210.72.8.35 38.631 ms

Measurement taken from

IPinfo ProbeNet in Qingyang, CN

On January 10th 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.

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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