210.77.26.0/23

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:         [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:          210.77.0.0/19
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 210.77.26.0/23

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

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

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

IP Address	ASN	Details
210.77.26.96	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`3.87ms` 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
181.123.83.39	AS23201 Telecel S.A.	`1.75ms` from Asuncion, PY
44.240.86.151	AS16509 Amazon.com, Inc.	`0.11ms` from Boardman, US
3.162.155.151	AS16509 Amazon.com, Inc.	`0.08ms` from Chicago, US
98.20.79.199	AS7029 Windstream Communications LLC	`4.07ms` from Dallas, US
189.20.131.231	AS10429 TELEFÔNICA BRASIL S.A	`0.78ms` from Osasco, BR
70.99.20.7	AS7385 Allstream Business US, LLC	`4.96ms` from Seattle, US
121.127.47.71	AS60068 Datacamp Limited	`0.09ms` from Sydney, AU
39.99.190.183	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.18ms` from Zhangjiakou, CN
68.134.217.247	AS701 Verizon Business	`5.04ms` from Ashburn, US
120.0.165.151	AS4837 CHINA UNICOM China169 Backbone	`11.40ms` from Beijing, CN
59.94.125.183	AS9829 National Internet Backbone	`13.16ms` from Bengaluru, IN
105.154.70.167	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`8.10ms` from Casablanca, MA
207.230.5.39	AS174 Cogent Communications, LLC	`0.78ms` from Chicago, US
66.49.42.39	AS7029 Windstream Communications LLC	`0.52ms` from Chicago, US
34.244.8.135	AS16509 Amazon.com, Inc.	`0.60ms` from Dublin, IE
95.127.233.71	AS3352 TELEFONICA DE ESPANA S.A.U.	`13.72ms` from Madrid, ES
90.246.105.135	AS5378 Vodafone Limited	`4.46ms` from Manchester, GB
62.161.154.199	AS3215 Orange S.A.	`1.09ms` from Paris, FR
94.23.49.135	AS16276 OVH SAS	`0.14ms` from Roubaix, FR
54.183.217.7	AS16509 Amazon.com, Inc.	`0.17ms` from San Jose, US
47.117.83.199	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.76ms` from Shanghai, CN
116.76.2.7	AS17962 ShenZhen Topway Video Communication Co. Ltd	`4.62ms` from Shenzhen, CN
171.126.143.231	AS4837 CHINA UNICOM China169 Backbone	`6.88ms` from Taiyuan, CN
98.83.6.119	AS14618 Amazon.com, Inc.	`1.07ms` from Ashburn, US
117.192.121.151	AS9829 National Internet Backbone	`3.56ms` from Bengaluru, IN

Traceroute

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

traceroute -a -n -q1 -f4 -m13 210.77.27.85

traceroute to 210.77.27.85 (210.77.27.85): 13 hops max, 52 byte packets

4 [AS4134] 61.160.7.53 4.161 ms

5 *

6 *

7 *

8 [AS4134] 202.97.92.2 20.63 ms

9 [AS7497] 159.226.254.73 22.158 ms

10 [AS7497] 159.226.254.162 23.048 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Huai'an, CN

On December 28th 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.

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