210.77.24.0/23

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 210.77.24.0/23

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

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

IP Address	ASN	Details
210.77.24.254	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`5.41ms` 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
92.70.103.39	AS1136 KPN B.V.	`0.56ms` from Amsterdam, NL
122.58.142.7	AS4771 Spark New Zealand Trading Ltd.	`13.82ms` from Auckland, NZ
196.64.152.247	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`8.99ms` from Casablanca, MA
69.64.178.23	AS14127 Iland Internet Solutions Corporation	`1.15ms` from Dallas, US
40.127.140.247	AS8075 Microsoft Corporation	`0.16ms` from Dublin, IE
217.226.81.55	AS3320 Deutsche Telekom AG	`2.87ms` from Duesseldorf, DE
87.161.151.55	AS3320 Deutsche Telekom AG	`5.75ms` from Frankfurt am Main, DE
194.210.138.7	AS1930 Fundacao para a Ciencia e a Tecnologia, I.P.	`3.50ms` from Lisbon, PT
81.131.148.199	AS2856 British Telecommunications PLC	`5.23ms` from London, GB
37.11.116.215	AS12479 Orange Espagne SA	`1.39ms` from Madrid, ES
79.45.228.247	AS3269 Telecom Italia S.p.A.	`1.34ms` from Milan, IT
87.13.70.119	AS3269 Telecom Italia S.p.A.	`9.54ms` from Milan, IT
91.192.188.103	AS42518 Unet Communication LLC	`0.37ms` from Saint Petersburg, RU
187.153.200.199	AS8151 UNINET	`12.22ms` from Santiago de Queretaro, MX
175.250.42.247	AS4766 Korea Telecom	`4.93ms` from Seoul, KR
220.147.181.151	AS2519 ARTERIA Networks Corporation	`18.93ms` from Tokyo, JP
180.21.88.135	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.38ms` from Tokyo, JP
92.68.185.119	AS1136 KPN B.V.	`2.54ms` from Amsterdam, NL
52.40.4.103	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
191.80.65.23	AS22927 Telefonica de Argentina	`3.61ms` from Buenos Aires, AR
14.174.248.23	AS45899 VNPT Corp	`2.88ms` from Da Nang, VN
78.153.70.23	AS12759 Stephan Fuss trading as SoftCom Datensysteme	`1.50ms` from Duesseldorf, DE
76.132.150.231	AS7922 Comcast Cable Communications, LLC	`4.23ms` from Fremont, US
113.85.163.103	AS4134 CHINANET-BACKBONE	`4.02ms` from Guangzhou, CN
73.120.65.71	AS7922 Comcast Cable Communications, LLC	`13.23ms` from Murfreesboro, US

Traceroute

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

traceroute -a -n -q1 -f3 -m11 210.77.24.26

traceroute to 210.77.24.26 (210.77.24.26): 11 hops max, 52 byte packets

3 [] 146.70.0.0 0.315 ms

4 [AS3491] 63.216.176.165 1.922 ms

5 [AS3491] 63.218.114.82 1.575 ms

6 [AS3491] 63.220.198.25 1.768 ms

7 [AS7497] 159.226.254.229 33.816 ms

8 [AS7497] 159.226.254.237 41.312 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On December 6th 2025

What are IP address ranges?

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