202.127.0.0/21

AS7497 · Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)

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Summary

Country	China
Domain	cnic.cn
ASN	AS7497
Registry	APNIC
ID	CSTNET-CN

WHOIS Details

inetnum:        202.127.0.0 - 202.127.7.255
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:  2023-10-09T03:59:50Z
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:          202.127.0.0/21
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:  2023-10-06T05:09:19Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 202.127.0.0/16

Range	ASN	Company	Num of IPs
202.127.80.0/20	AS24255	Tannan Cable Television Corporation	4,096
202.127.176.0/20	AS24259	kanuma cable television Corporation	4,096
202.127.240.0/20	AS4538	China Education and Research Network	4,096
202.127.144.0/20	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	4,096
202.127.16.0/20	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	4,096
202.127.96.0/20	AS17910	PT. Tigatra Infokom	4,096
202.127.32.0/21	AS46030	PT Wahan Inovasi Nusantara	2,048
202.127.200.0/21	AS7497	The Hefei Branch of Chinese Academy of Sciences	2,048
202.127.40.0/21	AS4808	Information Center, Ministry of Agriculture and Rural Affairs, PRC	2,048
202.127.168.0/21	AS24396	Bank Of China(Hong Kong) Limited	2,048
202.127.216.0/21	AS4538	China Education and Research Network	2,048
202.127.12.0/22	AS9929	Nanjing Institute of Science and Technology Information	1,024
202.127.32.0/22	AS46030	PT Wahan Inovasi Nusantara	1,024
202.127.69.0/24	AS4637	Telstra Global Internet Services Network /24 Block	256
202.127.11.0/24	AS140220	Sky Broadband	256
202.127.8.0/24	AS140220	Sky Broadband	256
202.127.9.0/24	AS140220	Sky Broadband	256
202.127.106.0/24	AS17910	Infrastructure for Serial Customer	256
202.127.10.0/24	AS140220	Sky Broadband	256
202.127.73.0/24	AS4637	Telstra Global Internet Services Network /24 Block	256
202.127.74.0/24	AS4637	Telstra Global Internet Services Network /24 Block	256
202.127.76.0/24	AS4637	Telstra Global Internet Services Network /24 Block	256
202.127.77.0/24	AS4637	Telstra Global Internet Services Network /24 Block	256
202.127.78.0/24	AS4637	Telstra Global Internet Services Network /24 Block	256
202.127.79.0/24	AS4637	Telstra Global Internet Services Network Blocks	256

Hosted domains

There are 5 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
202.127.3.168	biosino.org	3
202.127.1.39	irscience.org	1
202.127.0.113	mctc.net.cn	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

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

IP Address	ASN	Details
202.127.7.65	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`2.87ms` from Shanghai, CN
202.127.3.145	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`2.92ms` from Shanghai, CN
202.127.0.255	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`5.71ms` from Shanghai, CN
202.127.2.65	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`4.04ms` from Shanghai, CN
202.127.1.65	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`3.31ms` from Shanghai, 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
75.24.104.37	AS7018 AT&T Enterprises, LLC	`2.06ms` from Atlanta, US
24.98.214.229	AS7922 Comcast Cable Communications, LLC	`5.04ms` from Atlanta, US
138.128.141.213	AS49544 i3D.net B.V	`1.10ms` from Chicago, US
65.62.150.53	AS8011 MongoDB, Inc.	`0.13ms` from Frankfurt am Main, DE
124.244.59.53	AS9269 Hong Kong Broadband Network Ltd.	`0.83ms` from Hong Kong, HK
114.234.127.165	AS4134 CHINANET-BACKBONE	`9.35ms` from Huai'an, CN
176.38.1.85	AS39608 Lanet Network Ltd	`0.59ms` from Kyiv, UA
79.79.52.5	AS13285 TalkTalk Communications Limited	`4.17ms` from London, GB
194.184.8.149	AS3269 Telecom Italia S.p.A.	`2.70ms` from Milan, IT
122.227.131.165	AS4134 CHINANET-BACKBONE	`1.92ms` from Ningbo, CN
68.231.43.213	AS22773 Cox Communications Inc.	`4.70ms` from Phoenix, US
82.147.59.117	AS29492 EIDSIVA DIGITAL AS	`3.34ms` from Sandefjord, NO
172.218.88.197	AS852 TELUS Communications Inc.	`3.75ms` from Seattle, US
32.220.124.149	AS46690 Southern New England Telephone Company and SNET America, Inc.	`3.70ms` from Secaucus, US
112.30.220.133	AS9808 China Mobile Communications Group Co., Ltd.	`6.08ms` from Suzhou, CN
54.79.53.149	AS16509 Amazon.com, Inc.	`0.11ms` from Sydney, AU
45.162.153.5	AS263347 CEDNET PROVEDOR INTERNET	`9.37ms` from São Paulo, BR
153.199.136.197	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.59ms` from Tokyo, JP
157.7.35.101	AS55907 GMO Internet Group, Inc.	`0.32ms` from Tokyo, JP
77.171.150.37	AS1136 KPN B.V.	`1.19ms` from Amsterdam, NL
94.65.244.117	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`8.55ms` from Athens, GR
24.96.219.21	AS12083 WideOpenWest Finance LLC	`12.59ms` from Atlanta, US
186.132.225.197	AS22927 Telefonica de Argentina	`2.21ms` from Buenos Aires, AR
192.3.72.213	AS16628 DedFiberCo	`0.07ms` from Buffalo, US
209.93.69.69	AS6871 Plusnet	`5.53ms` from Erith, GB

Traceroute

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

traceroute -a -n -q1 -m11 202.127.4.72

traceroute to 202.127.4.72 (202.127.4.72): 11 hops max, 52 byte packets

1 [AS15169] 142.251.60.182 120.427 ms

2 *

3 [AS3491] 63.220.66.128 326.527 ms

4 *

5 [AS7497] 159.226.254.229 346.007 ms

6 [AS7497] 159.226.254.65 350.19 ms

7 *

8 [AS7497] 159.226.253.122 377.532 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Sao Paulo, BR

On December 6th 2025

What are IP address ranges?

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