210.73.40.0/23

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 210.73.0.0/18
Registry APNIC
ID CSTNET-CN

WHOIS Details

inetnum:        210.73.0.0 - 210.73.63.255
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:  2023-10-09T05:58:10Z
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:          210.73.0.0/18
descr:          Route origin from CSTNET
country:        CN
origin:         AS7497
remarks:        Please contact lihong@cstnet.cn if you have any
remarks:        questions regarding this object.
remarks:        Antispam mail please send to antispam@cstnet.cn.
notify:         lihong@cstnet.cn
mnt-by:         MAINT-CSTNET-CN
last-modified:  2023-10-06T05:09:23Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.73.40.0/23

Range ASN Company Num of IPs
210.73.0.0/18 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 16,384

Nearby Ranges

BGP prefixes that overlap with 210.73.0.0/16

Range ASN Company Num of IPs
210.73.0.0/18 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 16,384
210.73.64.0/19 AS18239 (CPIP)Beijing Information Highway Corp 8,192
210.73.224.0/19 AS4808 Shanghai Hongmao Information Technology Co. Ltd 8,192
210.73.192.0/19 AS4134 Beijing capitalonline data service co.,LTD 8,192
210.73.160.0/19 AS45090 Tencent cloud computing (Beijing) Co., Ltd. 8,192
210.73.128.0/19 AS4134 Wucheng District of Jinhua City huan cheng 8,192
210.73.96.0/20 AS7640 CITIC Group Management Information Department 4,096
210.73.112.0/20 AS4808 CITIC Group Management Information Department 4,096
210.73.16.0/20 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 4,096
210.73.176.0/20 AS45090 Tencent cloud computing (Beijing) Co., Ltd. 4,096
210.73.192.0/22 AS4812 CNLink Network Technology Ltd. 1,024
210.73.32.0/22 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 1,024
210.73.62.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512
210.73.50.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512
210.73.2.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512
210.73.54.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512
210.73.56.0/23 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 512
210.73.6.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.73.15.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.73.60.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.73.7.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.73.4.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.73.48.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.73.52.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.73.5.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.73.1.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.73.36.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.73.12.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.73.10.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.73.61.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 256
210.73.59.0/24 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 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
210.73.40.186 mbkbase.org 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

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

IP Address ASN Details
210.73.40.254 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 3.55ms from Beijing, CN
210.73.41.254 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 1.37ms 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
104.253.33.231 AS5650 Frontier Communications of America, Inc. 0.20ms from Ashburn, US
170.239.155.247 AS267841 GIGAS HOSTING COLOMBIA S.A.S. 1.48ms from Bogota, CO
50.107.103.231 AS5650 Frontier Communications of America, Inc. 10.85ms from Chicago, US
173.206.238.39 AS1403 EBOX 1.47ms from Montreal, CA
112.68.98.23 AS17511 OPTAGE Inc. 2.94ms from Osaka, JP
96.31.60.39 AS29894 South Central Rural Telecommunications Cooperative Inc. 9.57ms from Atlanta, US
93.217.106.215 AS3320 Deutsche Telekom AG 8.27ms from Frankfurt am Main, DE
45.142.152.7 AS136038 HDTIDC LIMITED 1.86ms from Hong Kong, HK
154.55.132.215 AS139646 HONG KONG Megalayer Technology Co.,Limited 2.19ms from Hong Kong, HK
58.212.107.199 AS4134 CHINANET-BACKBONE 1.05ms from Nanjing, CN
122.42.183.39 AS17858 LG POWERCOMM 2.65ms from Seoul, KR
67.213.66.215 AS40028 1651884 Ontario Inc. 0.17ms from Toronto, CA
122.70.241.183 AS24138 China TieTong Telecommunications Corporation 1.62ms from Beijing, CN
213.25.16.247 AS5617 Orange Polska Spolka Akcyjna 2.62ms from Gdynia, PL
91.179.203.183 AS5432 Proximus NV 6.62ms from Gravelines, FR
92.220.187.87 AS29695 Altibox AS 3.76ms from Oslo, NO
176.129.217.39 AS5410 Bouygues Telecom SA 8.74ms from Paris, FR
153.206.215.247 AS4713 NTT Communications Corporation 3.39ms from Tokyo, JP
5.144.25.87 AS15600 Quickline AG 8.27ms from Zuerich, CH
195.86.25.135 AS3257 GTT Communications Inc. 0.62ms from Amsterdam, NL
85.227.37.247 AS2119 Telenor Norge AS 2.95ms from Goeteborg, SE
85.145.209.167 AS50266 Odido Netherlands B.V. 4.76ms from Amsterdam, NL
86.220.43.247 AS3215 Orange S.A. 19.44ms from Marseille, FR
82.54.230.215 AS3269 Telecom Italia S.p.A. 5.94ms from Milan, IT
142.252.234.103 AS62240 Clouvider 1.00ms from New York City, US

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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