210.77.78.0/23

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	210.77.64.0/19
Registry	APNIC
ID	CSTNET-CN

WHOIS Details

inetnum:        210.77.64.0 - 210.77.95.255
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:  2023-10-10T01:38:40Z
source:         APNIC

irt:            IRT-CSTNET-CN
address:        2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
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:         [email protected]
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
nic-hdl:        AC2741-AP
remarks:        Generated from irt object IRT-CSTNET-CN
remarks:        [email protected] was validated on 2025-07-25
abuse-mailbox:  [email protected]
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:         [email protected]
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:          210.77.64.0/19
descr:          Route origin from CSTNET
country:        CN
origin:         AS7497
remarks:        Please contact [email protected] if you have any
remarks:        questions regarding this object.
remarks:        Antispam mail please send to [email protected].
notify:         [email protected]
mnt-by:         MAINT-CSTNET-CN
last-modified:  2023-10-06T05:09:25Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.77.78.0/23

Range	ASN	Company	Num of IPs
210.77.64.0/19	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 is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

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

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

IP Address	ASN	Details
210.77.79.7	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`27.52ms` 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
108.227.139.39	AS7018 AT&T Enterprises, LLC	`2.35ms` from Atlanta, US
60.184.0.39	AS4134 CHINANET-BACKBONE	`8.85ms` from Hangzhou, CN
185.183.92.23	AS35586 VOLYN OPTICAL NETWORKS LLC	`5.89ms` from Kyiv, UA
89.44.61.199	AS12479 Orange Espagne SA	`1.61ms` from Madrid, ES
176.139.86.87	AS5410 Bouygues Telecom SA	`3.76ms` from Marseille, FR
60.57.51.55	AS17511 OPTAGE Inc.	`2.01ms` from Osaka, JP
61.111.66.55	AS45370 BROADBANDIDC	`2.07ms` from Seoul, KR
1.225.34.103	AS9318 SK Broadband Co Ltd	`2.38ms` from Seoul, KR
188.137.64.199	AS13000 Leon Sp. z o.o.	`4.44ms` from Wrocław, PL
20.67.24.247	AS8075 Microsoft Corporation	`0.22ms` from Amsterdam, NL
73.146.103.231	AS7922 Comcast Cable Communications, LLC	`10.17ms` from Chicago, US
207.56.69.231	AS54801 Zillion Network Inc.	`1.05ms` from Hong Kong, HK
60.138.213.167	AS17676 SoftBank Corp.	`2.32ms` from Osaka, JP
64.163.146.55	AS7018 AT&T Enterprises, LLC	`1.58ms` from San Jose, US
49.30.163.231	AS4766 Korea Telecom	`6.63ms` from Seoul, KR
36.227.254.151	AS3462 Data Communication Business Group	`1.22ms` from Taipei, TW
124.165.13.71	AS4837 CHINA UNICOM China169 Backbone	`6.45ms` from Taiyuan, CN
101.200.178.39	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.26ms` from Beijing, CN
108.157.246.167	AS16509 Amazon.com, Inc.	`0.45ms` from Hyderabad, IN
66.142.36.39	AS7018 AT&T Enterprises, LLC	`1.41ms` from Kansas City, US
13.40.103.7	AS16509 Amazon.com, Inc.	`0.50ms` from London, GB
148.139.16.55	AS16839 SERVICENOW, INC.	`3.83ms` from London, GB
158.95.178.7	AS55256 Netskope Inc	`0.40ms` from Melbourne, AU
37.215.173.103	AS6697 Republican Unitary Telecommunication Enterprise Beltelecom	`2.15ms` from Minsk, BY
150.66.132.55	AS17511 OPTAGE Inc.	`2.46ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 -f6 210.77.79.7

traceroute to 210.77.79.7 (210.77.79.7): 64 hops max, 52 byte packets

6 [AS7497] 103.2.211.128 4.336 ms

7 [AS7497] 159.226.254.85 8.921 ms

8 [AS7497] 159.226.254.142 4.131 ms

9 [AS7497] 159.226.253.102 29.206 ms

10 *

11 [AS7497] 210.77.79.7 28.239 ms

Measurement taken from

IPinfo ProbeNet in Beijing, CN

On December 20th 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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