210.77.0.0/19

AS7497  ·  Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)

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Summary

Country China
Domain cnic.cn
ASN AS7497
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 are contained by 210.77.0.0/19

Range ASN Company Num of IPs
210.77.31.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.77.12.0/23 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
210.77.2.0/23 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
210.77.4.0/22 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
210.77.0.0/21 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 2,048
210.77.24.0/21 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 2,048
210.77.8.0/21 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 2,048
210.77.16.0/21 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 2,048

Nearby Ranges

BGP prefixes that overlap with 210.77.0.0/16

Range ASN Company Num of IPs
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
210.77.24.0/21 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 4 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
210.77.19.16 dacas.ac.cn 1
210.77.29.130 ucas.ai 1
210.77.29.194 feds.ac 1

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

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

IP Address ASN Details
210.77.1.36 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 5.47ms from Beijing, CN
210.77.22.1 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 4.71ms from Beijing, CN
210.77.19.235 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 4.86ms from Beijing, CN
210.77.30.49 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 5.08ms from Beijing, CN
210.77.16.210 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 4.29ms from Beijing, CN
210.77.23.115 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 8.77ms from Beijing, CN
210.77.10.100 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 3.59ms from Beijing, CN
210.77.28.187 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 4.71ms from Beijing, CN
210.77.18.15 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 4.31ms from Beijing, CN
210.77.29.168 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 3.51ms from Beijing, CN
210.77.17.126 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 4.79ms 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
83.244.124.195 AS12975 PALTEL Autonomous System 18.23ms from Amman, JO
77.172.210.67 AS1136 KPN B.V. 2.29ms from Amsterdam, NL
146.20.107.3 AS27357 Rackspace Hosting 0.55ms from Ashburn, US
97.129.29.131 AS6167 Verizon Business 11.35ms from Atlanta, US
132.162.9.3 AS36368 Oberlin College 9.47ms from Columbus, US
88.135.114.99 AS42239 Ltd. "Cypher" 7.37ms from Krasnodar, RU
195.0.173.243 AS2116 GLOBALCONNECT AS 7.06ms from Oslo, NO
111.61.50.179 AS24547 Hebei Mobile Communication Company Limited 12.16ms from Beijing, CN
181.45.142.83 AS27747 Telecentro S.A. 5.88ms from Buenos Aires, AR
180.199.238.179 AS18126 Chubu Telecommunications Company, Inc. 4.85ms from Osaka, JP
61.79.94.67 AS4766 Korea Telecom 1.68ms from Seoul, KR
77.117.110.147 AS25255 ==> TELE2 AUSTRIA <== 9.16ms from Vienna, AT
212.244.238.147 AS5617 Orange Polska Spolka Akcyjna 6.93ms from Warsaw, PL
71.68.89.83 AS11426 Charter Communications Inc 3.72ms from Charlotte, US
169.61.173.163 AS36351 IBM Cloud 0.80ms from Dallas, US
76.253.166.131 AS7018 AT&T Enterprises, LLC 1.91ms from Dallas, US
124.156.129.227 AS132203 Tencent Building, Kejizhongyi Avenue 0.32ms from Hong Kong, HK
163.182.148.3 AS18616 Natural Wireless, LLC 0.90ms from Secaucus, US
1.236.109.35 AS9318 SK Broadband Co Ltd 1.93ms from Seoul, KR
20.150.66.35 AS8075 Microsoft Corporation 0.85ms from Sydney, AU
81.184.33.83 AS6739 VODAFONE ONO, S.A. 13.07ms from Zaragoza, ES
113.179.255.19 AS45899 VNPT Corp 4.92ms from Hanoi, VN
37.64.1.99 AS15557 Societe Francaise Du Radiotelephone - SFR SA 2.30ms from Paris, FR
175.128.196.67 AS2516 KDDI CORPORATION 16.59ms from Tokyo, JP
84.149.41.147 AS3320 Deutsche Telekom AG 4.33ms from Duesseldorf, DE

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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