202.127.21.0/24

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	202.127.16.0/20
Registry	APNIC
ID	CSTNET-CN

WHOIS Details

inetnum:        202.127.16.0 - 202.127.31.255
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:          202.127.16.0/20
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:  2023-10-06T05:09:21Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 202.127.21.0/24

Range	ASN	Company	Num of IPs
202.127.16.0/20	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	4,096

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
202.127.0.0/21	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	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 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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
52.255.231.56	AS8075 Microsoft Corporation	`0.37ms` from Ashburn, US
75.166.218.120	AS209 CenturyLink Communications, LLC	`2.37ms` from Denver, US
71.237.84.232	AS7922 Comcast Cable Communications, LLC	`4.57ms` from Denver, US
176.170.175.168	AS5410 Bouygues Telecom SA	`7.97ms` from Frankfurt am Main, DE
110.225.104.120	AS24560 Bharti Airtel Ltd., Telemedia Services	`1.58ms` from Kolkata, IN
47.154.56.72	AS5650 Frontier Communications of America, Inc.	`2.39ms` from Los Angeles, US
83.48.5.168	AS3352 TELEFONICA DE ESPANA S.A.U.	`2.68ms` from Madrid, ES
179.42.241.232	AS10269 Belize Telemedia Limited	`17.70ms` from Miami, US
155.185.247.232	AS137 Consortium GARR	`8.19ms` from Milan, IT
83.193.73.40	AS3215 Orange S.A.	`14.15ms` from Paris, FR
13.222.247.72	AS14618 Amazon.com, Inc.	`0.42ms` from Reston, US
14.67.94.104	AS4766 Korea Telecom	`2.98ms` from Seoul, KR
218.81.57.8	AS4812 China Telecom (Group)	`4.50ms` from Shanghai, CN
103.13.81.152	AS2914 NTT America, Inc.	`0.25ms` from Sydney, AU
132.66.110.56	AS378 IUCC - Israel InterUniversity Computation Center	`0.93ms` from Tel Aviv, IL
34.165.67.168	AS396982 Google LLC	`0.12ms` from Tel Aviv, IL
52.196.218.8	AS16509 Amazon.com, Inc.	`0.16ms` from Tokyo, JP
58.87.218.136	AS2527 Sony Network Communications Inc.	`9.23ms` from Tokyo, JP
180.52.36.136	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.13ms` from Tokyo, JP
34.211.166.168	AS16509 Amazon.com, Inc.	`0.15ms` from Boardman, US
74.192.75.8	AS19108 Optimum	`10.74ms` from Dallas, US
76.131.244.8	AS7922 Comcast Cable Communications, LLC	`3.55ms` from Denver, US
4.144.0.56	AS8075 Microsoft Corporation	`0.29ms` from Hong Kong, HK
66.120.138.200	AS7018 AT&T Enterprises, LLC	`1.78ms` from Los Angeles, US
81.44.109.120	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.14ms` from Madrid, ES

Traceroute

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

traceroute -a -n -q1 -m13 202.127.21.53

traceroute to 202.127.21.53 (202.127.21.53): 13 hops max, 52 byte packets

1 [AS135061] 112.95.75.129 53.593 ms

2 *

3 *

4 *

5 [AS135061] 211.95.149.37 12.772 ms

6 *

7 *

8 *

9 [AS4837] 219.158.32.246 31.143 ms

10 [AS7497] 159.226.253.161 32.123 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Shenzhen, CN

On February 7th 2026

What are IP address ranges?

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