210.77.24.0/21

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:  2025-07-25T01:16:40Z
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 210.77.24.0/21

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

BGP prefixes that are contained by 210.77.24.0/21

Range ASN Company Num of IPs
210.77.31.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.77.24.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512
210.77.26.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512

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 AS4835 21ViaNet(China),Inc. 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
210.77.128.0/19 AS9802 21ViaNet(China),Inc. 8,192
210.77.208.0/20 AS4808 Enterprise user of JNGDNET 4,096
210.77.48.0/20 AS4808 China Internet Network Information Center 4,096
210.77.0.0/21 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 2,048
210.77.32.0/21 AS4808 China Internet Network Information Center 2,048
210.77.16.0/21 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 2,048
210.77.40.0/21 AS4808 China Internet Network Information Center 2,048
210.77.8.0/21 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 2,048
210.77.72.0/22 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 1,024
210.77.4.0/22 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 1,024
210.77.8.0/22 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 1,024
210.77.88.0/22 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 1,024
210.77.92.0/22 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 1,024
210.77.68.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512
210.77.86.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512
210.77.58.0/23 AS4808 China Internet Network Information Center 512
210.77.80.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512
210.77.22.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512
210.77.84.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512
210.77.78.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512
210.77.2.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512
210.77.24.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512
210.77.26.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512
210.77.14.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512
210.77.12.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512
210.77.65.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.77.180.0/24 AS4808 State Power Information Net 256
210.77.67.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.77.76.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.77.179.0/24 AS18241 State Power Information Net 256
210.77.183.0/24 AS18241 State Power Information Net 256
210.77.64.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.77.178.0/24 AS18241 State Power Information Net 256
210.77.77.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.77.177.0/24 AS18241 State Power Information Net 256
210.77.91.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.77.176.0/24 AS18241 State Power Information Net 256
210.77.71.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.77.189.0/24 AS18241 State Power Information Net 256
210.77.82.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.77.191.0/24 AS18241 State Power Information Net 256
210.77.190.0/24 AS4808 State Power Information Net 256
210.77.66.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256

Hosted domains

There are 2 domain names hosted across 2 IP addresses 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

Pingable IPs

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

IP Address ASN Details
210.77.30.49 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 5.08ms from Beijing, CN
210.77.28.187 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 4.71ms from Beijing, CN
210.77.29.168 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 3.51ms 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
161.38.217.101 AS136972 Gigafy 0.35ms from Brisbane, AU
18.222.112.245 AS16509 Amazon.com, Inc. 0.14ms from Columbus, US
87.239.105.21 AS47764 LLC VK 0.48ms from Moscow, RU
18.189.162.133 AS16509 Amazon.com, Inc. 0.14ms from Columbus, US
109.105.117.21 AS2603 NORDUnet 0.30ms from Copenhagen, DK
57.129.87.69 AS16276 OVH SAS 0.13ms from Frankfurt am Main, DE
159.60.188.165 AS35280 F5 Networks SARL 0.31ms from Lisbon, PT
37.101.84.165 AS1267 WIND TRE S.P.A. 19.64ms from Milan, IT
187.0.71.229 AS22689 SERCOMTEL S/A TELECOMUNICACOES 9.46ms from Osasco, BR
119.185.175.133 AS4837 CHINA UNICOM China169 Backbone 4.83ms from Qingdao, CN
143.178.80.21 AS50266 Odido Netherlands B.V. 2.85ms from Amsterdam, NL
209.40.71.37 AS26721 Inyo Networks 0.48ms from Los Angeles, US
49.146.179.133 AS9299 Philippine Long Distance Telephone Company 5.50ms from Manila, PH
20.213.212.37 AS8075 Microsoft Corporation 0.40ms from Melbourne, AU
92.100.157.133 AS12389 PJSC Rostelecom 1.26ms from Saint Petersburg, RU
64.181.171.181 AS31898 Oracle Corporation 0.18ms from Sao Paulo, BR
110.132.130.5 AS9824 JCOM Co., Ltd. 9.62ms from Tokyo, JP
195.112.80.165 AS6730 Sunrise GmbH 0.67ms from Zuerich, CH
60.253.133.181 AS17964 Beijing Dian-Xin-Tong Network Technologies Co., Ltd. 4.34ms from Beijing, CN
146.212.119.165 AS21283 A1 Slovenija telekomunikacijske storitve,d.d. 1.57ms from Ljubljana, SI
131.111.70.85 AS786 Jisc Services Limited 2.21ms from London, GB
13.232.76.181 AS16509 Amazon.com, Inc. 0.12ms from Mumbai, IN
152.254.175.21 AS27699 TELEFÔNICA BRASIL S.A 2.43ms from Sao Paulo, BR
70.95.221.181 AS20001 Charter Communications Inc 9.45ms from Los Angeles, US
1.160.253.53 AS3462 Data Communication Business Group 1.38ms from Taipei, TW

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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