210.72.148.0/23

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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
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:         [email protected]
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
nic-hdl:        AC2741-AP
remarks:        Generated from irt object IRT-CSTNET-CN
remarks:        [email protected] was validated on 2025-07-25
abuse-mailbox:  [email protected]
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:         [email protected]
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 [email protected] if you have any
remarks:        questions regarding this object.
remarks:        Antispam mail please send to [email protected].
notify:         [email protected]
mnt-by:         MAINT-CSTNET-CN
last-modified:  2023-10-06T05:09:23Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.72.148.0/23

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 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

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

IP Address	ASN	Details
210.72.149.6	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`20.74ms` from Beijing, CN
210.72.148.62	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`21.27ms` 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
77.162.153.231	AS1136 KPN B.V.	`1.53ms` from Amsterdam, NL
97.245.60.231	AS6167 Verizon Business	`16.27ms` from Atlanta, US
120.132.59.87	AS23724 IDC, China Telecommunications Corporation	`2.78ms` from Beijing, CN
81.212.248.247	AS9121 Turk Telekomunikasyon Anonim Sirketi	`4.19ms` from Bursa, TR
23.38.99.183	AS20940 Akamai International B.V.	`0.33ms` from Frankfurt am Main, DE
90.230.191.247	AS3301 Telia Company AB	`1.83ms` from Goeteborg, SE
189.243.10.231	AS8151 UNINET	`8.60ms` from Guadalajara, MX
189.177.227.55	AS8151 UNINET	`4.10ms` from Guadalajara, MX
101.37.227.103	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.26ms` from Hangzhou, CN
221.127.250.55	AS9304 HGC Global Communications Limited	`1.67ms` from Hong Kong, HK
114.203.60.71	AS9318 SK Broadband Co Ltd	`1.78ms` from Incheon, KR
49.200.121.103	AS45820 Tata Teleservices ISP AS	`1.14ms` from Kolkata, IN
156.245.116.151	AS398823 PEG TECH INC	`0.32ms` from Los Angeles, US
141.170.208.39	AS200064 Red digital de telecomunicaciones de las Islas Baleares S.L	`9.34ms` from Madrid, ES
126.57.144.231	AS17676 SoftBank Corp.	`9.60ms` from Osaka, JP
210.135.231.7	AS7524 ITEC HANKYU HANSHIN CO.,LTD.	`2.65ms` from Osaka, JP
112.227.105.119	AS4837 CHINA UNICOM China169 Backbone	`4.99ms` from Qingdao, CN
111.251.161.135	AS3462 Data Communication Business Group	`2.10ms` from Taipei, TW
18.180.21.119	AS16509 Amazon.com, Inc.	`0.16ms` from Tokyo, JP
64.66.18.55	AS18875 Questzone.Net, Inc.	`5.11ms` from Vancouver, CA
70.39.237.167	AS5065 Bunny Communications	`0.22ms` from Ashburn, US
13.90.116.119	AS8075 Microsoft Corporation	`0.42ms` from Ashburn, US
222.211.85.55	AS38283 CHINANET SiChuan Telecom Internet Data Center	`1.54ms` from Chengdu, CN
211.58.110.39	AS9318 SK Broadband Co Ltd	`7.31ms` from Incheon, KR
101.173.177.7	AS1221 Telstra Limited	`1.82ms` from Melbourne, AU

Traceroute

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

traceroute -a -n -q1 -f2 210.72.149.237

traceroute to 210.72.149.237 (210.72.149.237): 64 hops max, 52 byte packets

2 [AS15805] 213.207.187.37 4.921 ms

3 *

4 *

5 *

6 [AS174] 154.54.6.26 194.193 ms

7 [AS174] 154.18.9.165 195.793 ms

8 [AS7497] 159.226.254.229 244.854 ms

9 [AS7497] 159.226.254.65 244.404 ms

10 [AS7497] 159.226.254.142 227.965 ms

11 [AS7497] 159.226.253.186 267.514 ms

12 *

13 [AS7497] 210.72.149.237 258.475 ms

Measurement taken from

IPinfo ProbeNet in Nicosia, CY

On January 30th 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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