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:         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 210.72.148.0/23

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
210.72.148.62	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`22.92ms` from Beijing, CN
210.72.149.6	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`22.90ms` 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
40.120.112.231	AS8075 Microsoft Corporation	`3.84ms` from Al Fujairah City, AE
93.189.95.151	AS49635 CLOUDI NEXTGEN SL	`0.72ms` from Barcelona, ES
139.59.47.183	AS14061 DigitalOcean, LLC	`0.29ms` from Bengaluru, IN
13.245.163.7	AS16509 Amazon.com, Inc.	`0.45ms` from Cape Town, ZA
23.59.36.55	AS16625 Akamai Technologies, Inc.	`0.14ms` from Copenhagen, DK
187.65.205.151	AS28573 Claro NXT Telecomunicacoes Ltda	`16.52ms` from Curitiba, BR
87.161.88.247	AS3320 Deutsche Telekom AG	`2.26ms` from Duesseldorf, DE
63.181.137.167	AS16509 Amazon.com, Inc.	`0.17ms` from Frankfurt am Main, DE
9.141.141.247	AS8075 Microsoft Corporation	`0.20ms` from Frankfurt am Main, DE
36.249.131.87	AS4837 CHINA UNICOM China169 Backbone	`7.93ms` from Fuzhou, CN
221.11.141.135	AS4837 CHINA UNICOM China169 Backbone	`9.66ms` from Liuzhou, CN
218.92.115.23	AS4134 CHINANET-BACKBONE	`7.64ms` from Nanjing, CN
173.33.3.39	AS812 Rogers Communications Canada Inc.	`18.12ms` from New York City, US
126.25.211.231	AS17676 SoftBank Corp.	`10.67ms` from Osaka, JP
112.242.249.215	AS4837 CHINA UNICOM China169 Backbone	`7.79ms` from Qingdao, CN
40.84.149.55	AS8075 Microsoft Corporation	`0.26ms` from San Antonio, US
113.198.1.71	AS4766 Korea Telecom	`1.50ms` from Seoul, KR
34.127.52.135	AS396982 Google LLC	`0.17ms` from The Dalles, US
60.83.36.199	AS17676 SoftBank Corp.	`8.46ms` from Tokyo, JP
52.206.141.119	AS14618 Amazon.com, Inc.	`0.48ms` from Ashburn, US
74.131.88.135	AS10796 Charter Communications Inc	`13.73ms` from Columbus, US
14.21.96.7	AS4134 CHINANET-BACKBONE	`1.67ms` from Guangzhou, CN
128.171.45.39	AS6360 University of Hawaii	`1.44ms` from Honolulu, US
68.85.2.103	AS7922 Comcast Cable Communications, LLC	`2.11ms` from Murfreesboro, US
49.79.198.247	AS4134 CHINANET-BACKBONE	`6.43ms` from Nanjing, CN

Traceroute

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

traceroute -a -n -q1 -f6 210.72.148.222

traceroute to 210.72.148.222 (210.72.148.222): 64 hops max, 52 byte packets

6 [AS7497] 103.2.211.128 6.056 ms

7 [AS7497] 159.226.254.89 4.249 ms

8 [AS7497] 159.226.254.146 5.375 ms

9 [AS7497] 159.226.253.186 23.953 ms

10 *

11 [AS7497] 210.72.148.222 24.111 ms

Measurement taken from

IPinfo ProbeNet in Beijing, 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.

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