210.77.22.0/23

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	210.77.0.0/19
Registry	APNIC
ID	CSTNET-CN

WHOIS Details

inetnum:        210.77.0.0 - 210.77.31.255
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:  2023-10-10T01:38:39Z
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:          210.77.0.0/19
descr:          China Science & Technology Network
country:        CN
origin:         AS7497
mnt-by:         MAINT-CSTNET-CN
last-modified:  2023-10-06T05:09:24Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.77.22.0/23

Range	ASN	Company	Num of IPs
210.77.0.0/19	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	8,192

Nearby Ranges

BGP prefixes that overlap with 210.77.0.0/16

Range	ASN	Company	Num of IPs
210.77.0.0/19	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	8,192
210.77.128.0/19	AS23724	21ViaNet(China),Inc.	8,192
210.77.192.0/19	AS4808	China Broadcasting Shandong Network Co., Ltd. Jinan Branch	8,192
210.77.224.0/19	AS4808	China Great Wall Network	8,192
210.77.64.0/19	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	8,192
210.77.176.0/20	AS18241	State Power Information Net	4,096
210.77.176.0/20	AS9814	State Power Information Net	4,096
210.77.154.0/24	AS4835	Full Link (China),Inc.	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
210.77.22.1	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`4.26ms` from Beijing, CN
210.77.23.214	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`7.27ms` 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
209.38.34.71	AS14061 DigitalOcean, LLC	`0.21ms` from Amsterdam, NL
101.27.35.39	AS4837 CHINA UNICOM China169 Backbone	`9.31ms` from Beijing, CN
191.109.178.39	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`3.51ms` from Bogota, CO
187.147.211.87	AS8151 UNINET	`12.14ms` from Cancún, MX
5.186.84.7	AS44869 FIBIA P/S	`3.21ms` from Copenhagen, DK
71.150.174.7	AS7018 AT&T Enterprises, LLC	`17.22ms` from Houston, US
143.223.42.119	AS53347 Premier Communications	`10.08ms` from Lincoln, US
81.97.61.183	AS5089 Virgin Media Limited	`4.96ms` from London, GB
185.121.244.7	AS209119 PJSC "Joint-Stock Insurance Company ENERGOGARANT"	`1.63ms` from Moscow, RU
115.137.74.71	AS17858 LG POWERCOMM	`1.98ms` from Seoul, KR
216.118.177.71	AS32165 Blue Cross and Blue Shield of Massachusetts, Inc.	`1.30ms` from Boston, US
20.110.210.247	AS8075 Microsoft Corporation	`0.35ms` from Boydton, US
104.235.140.23	AS5650 Frontier Communications of America, Inc.	`10.87ms` from Chicago, US
3.148.180.231	AS16509 Amazon.com, Inc.	`0.16ms` from Columbus, US
62.224.116.135	AS3320 Deutsche Telekom AG	`1.89ms` from Frankfurt am Main, DE
1.62.222.7	AS4837 CHINA UNICOM China169 Backbone	`4.13ms` from Harbin, CN
73.115.132.87	AS7922 Comcast Cable Communications, LLC	`4.86ms` from Houston, US
203.46.186.167	AS1221 Telstra Limited	`1.51ms` from Melbourne, AU
177.172.147.231	AS26599 TELEFÔNICA BRASIL S.A	`4.35ms` from Osasco, BR
187.3.239.103	AS28573 Claro NXT Telecomunicacoes Ltda	`9.35ms` from Rio de Janeiro, BR
176.77.82.7	AS12714 PJSC MegaFon	`1.48ms` from Samara, RU
3.39.77.23	AS16509 Amazon.com, Inc.	`0.21ms` from Seoul, KR
38.212.75.247	AS33616 Co-Mo Comm Inc	`6.90ms` from St. Louis, US
13.62.118.39	AS16509 Amazon.com, Inc.	`0.13ms` from Stockholm, SE
61.224.27.135	AS3462 Data Communication Business Group	`2.37ms` from Taichung, TW

Traceroute

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

traceroute -a -n -q1 -m10 210.77.23.161

traceroute to 210.77.23.161 (210.77.23.161): 10 hops max, 52 byte packets

1 [AS15169] 142.251.60.112 8.934 ms

2 *

3 [AS3491] 63.218.114.82 59.429 ms

4 [AS3491] 63.220.198.25 53.651 ms

5 [AS7497] 159.226.254.229 88.437 ms

6 [AS7497] 159.226.254.237 91.964 ms

7 [AS7497] 159.226.254.162 91.683 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Osaka, JP

On January 9th 2026

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