210.72.156.0/23

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	210.72.128.0/19
Registry	APNIC
ID	CSTNET-CN

WHOIS Details

inetnum:        210.72.128.0 - 210.72.159.255
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 is invalid
mnt-by:         MAINT-CSTNET-CN
last-modified:  2026-02-11T13:10:17Z
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 is invalid
abuse-mailbox:  abuse-ip@cstnet.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-02-11T13:11:38Z
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:          210.72.128.0/19
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:  2023-10-06T05:09:23Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.72.156.0/23

Range	ASN	Company	Num of IPs
210.72.128.0/19	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	8,192

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 6 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
210.72.156.89	genedatabase.cn	2
210.72.157.161	mbmcas.com	1
210.72.157.75	ccr.ac.cn	1
210.72.157.143	cmbol.cn	1
210.72.156.93	ecocodr-iocas.top	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

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

IP Address	ASN	Details
210.72.156.3	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`16.40ms` from Beijing, CN
210.72.157.75	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`17.56ms` 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
18.210.122.231	AS14618 Amazon.com, Inc.	`0.44ms` from Ashburn, US
172.191.138.55	AS8075 Microsoft Corporation	`0.61ms` from Ashburn, US
98.183.14.71	AS22773 Cox Communications Inc.	`19.32ms` from Atlanta, US
43.209.103.231	AS16509 Amazon.com, Inc.	`1.56ms` from Bangkok, TH
109.138.91.103	AS5432 Proximus NV	`1.73ms` from Brussels, BE
66.139.188.23	AS7018 AT&T Enterprises, LLC	`9.93ms` from Dallas, US
91.57.45.183	AS3320 Deutsche Telekom AG	`5.66ms` from Duesseldorf, DE
217.228.179.7	AS3320 Deutsche Telekom AG	`3.22ms` from Duesseldorf, DE
61.154.239.7	AS4134 CHINANET-BACKBONE	`5.55ms` from Fuzhou, CN
213.112.65.231	AS8434 Telenor Sverige AB	`0.45ms` from Goeteborg, SE
109.213.32.7	AS3215 Orange S.A.	`15.50ms` from Lyon, FR
220.176.203.87	AS4134 CHINANET-BACKBONE	`4.15ms` from Nanchang, CN
92.169.173.167	AS3215 Orange S.A.	`1.96ms` from Paris, FR
36.156.80.39	AS56046 China Mobile communications corporation	`4.23ms` from Suzhou, CN
54.197.131.119	AS14618 Amazon.com, Inc.	`0.49ms` from Ashburn, US
68.10.69.199	AS22773 Cox Communications Inc.	`11.09ms` from Ashburn, US
140.179.49.183	AS55960 Beijing Guanghuan Xinwang Digital	`3.45ms` from Beijing, CN
46.107.76.167	AS5483 Magyar Telekom Plc.	`3.90ms` from Budapest, HU
139.209.15.23	AS4837 CHINA UNICOM China169 Backbone	`4.46ms` from Changchun, CN
18.118.237.103	AS16509 Amazon.com, Inc.	`0.15ms` from Columbus, US
147.29.10.55	AS29156 DXC Technology Danmark A/S	`1.66ms` from Copenhagen, DK
50.7.17.7	AS30058 FDCservers.net	`0.19ms` from Hong Kong, HK
109.144.156.247	AS2856 British Telecommunications PLC	`0.85ms` from London, GB
90.222.21.103	AS5607 Sky UK Limited	`2.91ms` from London, GB
98.255.19.199	AS7922 Comcast Cable Communications, LLC	`10.51ms` from Los Angeles, US

Traceroute

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

traceroute -a -n -q1 -f7 210.72.157.110

traceroute to 210.72.157.110 (210.72.157.110): 64 hops max, 52 byte packets

7 [AS7497] 103.2.211.132 27.079 ms

8 [AS7497] 159.226.254.89 26.293 ms

9 [AS7497] 159.226.254.146 26.448 ms

10 *

11 *

12 *

13 *

14 [AS7497] 210.72.157.110 42.306 ms

Measurement taken from

IPinfo ProbeNet in Shanghai, CN

On March 13th 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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