210.77.12.0/23

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 210.77.12.0/23

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

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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
41.69.183.39	AS24835 Vodafone Data	`19.96ms` from Cairo, EG
89.242.89.7	AS13285 TalkTalk Communications Limited	`3.92ms` from Erith, GB
94.8.8.87	AS5607 Sky UK Limited	`5.91ms` from Erith, GB
162.19.119.87	AS16276 OVH SAS	`0.12ms` from Gravelines, FR
123.27.30.7	AS45899 VNPT Corp	`3.25ms` from Hanoi, VN
112.152.176.7	AS17858 LG POWERCOMM	`2.86ms` from Incheon, KR
37.158.129.23	AS3352 TELEFONICA DE ESPANA S.A.U.	`17.69ms` from Madrid, ES
34.54.236.23	AS396982 Google LLC	`0.08ms` from Melbourne, AU
93.223.191.215	AS3320 Deutsche Telekom AG	`2.76ms` from Nuernberg, DE
177.95.240.135	AS27699 TELEFÔNICA BRASIL S.A	`2.06ms` from Osasco, BR
35.189.61.247	AS396982 Google LLC	`0.11ms` from Sydney, AU
1.163.137.71	AS3462 Data Communication Business Group	`1.11ms` from Taipei, TW
160.107.108.167	AS687 United States Department of Defense (DoD)	`2.68ms` from Ashburn, US
73.137.37.55	AS7922 Comcast Cable Communications, LLC	`4.87ms` from Atlanta, US
123.242.185.87	AS38450 Ministry of Infomation Communication Technology	`7.67ms` from Bangkok, TH
20.7.240.215	AS8075 Microsoft Corporation	`0.22ms` from Boydton, US
40.65.219.183	AS8075 Microsoft Corporation	`0.30ms` from Boydton, US
101.188.176.87	AS1221 Telstra Limited	`6.00ms` from Brisbane, AU
186.61.97.23	AS22927 Telefonica de Argentina	`12.59ms` from Buenos Aires, AR
27.6.221.103	AS17488 Hathway IP Over Cable Internet	`1.87ms` from Delhi, IN
213.182.235.7	AS28919 Stadtwerke Kufstein GmbH	`12.06ms` from Frankfurt am Main, DE
47.120.43.247	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.22ms` from Heyuan, CN
112.8.204.23	AS24444 Shandong Mobile Communication Company Limited	`4.04ms` from Jinan, CN
175.184.169.39	AS4837 CHINA UNICOM China169 Backbone	`17.28ms` from Lanzhou, CN
31.51.73.7	AS2856 British Telecommunications PLC	`1.56ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f4 -m11 210.77.13.118

traceroute to 210.77.13.118 (210.77.13.118): 11 hops max, 52 byte packets

4 [AS174] 154.54.85.133 1.853 ms

5 [AS174] 154.18.9.165 2.729 ms

6 [AS7497] 159.226.254.229 37.5 ms

7 [AS7497] 159.226.254.237 35.636 ms

8 [AS7497] 159.226.254.162 34.69 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On January 9th 2026

What are IP address ranges?

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