223.193.40.0/21

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 223.192.0.0/15
Registry APNIC
ID CSTNET-CN

WHOIS Details

inetnum:        223.192.0.0 - 223.193.255.255
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:  2023-10-12T05:13:42Z
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:  2025-11-18T00:35:26Z
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:         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:          223.192.0.0/15
descr:          Chinese Science & Technology Network.
country:        CN
origin:         AS7497
mnt-by:         MAINT-CSTNET-CN
last-modified:  2023-10-06T05:09:26Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 223.193.40.0/21

Range ASN Company Num of IPs
223.192.0.0/15 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 131,072

Nearby Ranges

BGP prefixes that overlap with 223.193.0.0/16

Range ASN Company Num of IPs
223.192.0.0/15 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 131,072

Hosted domains

There are 24 domain names hosted across 9 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
223.193.44.162 casqiem.ac.cn 4
223.193.44.175 scimatrix.cn 2
223.193.44.205 chinagene.cn 2
223.193.44.82 casmooc.cn 1
223.193.44.135 goscloud.net 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

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

IP Address ASN Details
223.193.40.113 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 4.24ms from Beijing, CN
223.193.44.82 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 3.03ms 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
166.210.68.53 AS14080 Telmex Colombia S.A. 1.23ms from Bogota, CO
119.49.187.37 AS4837 CHINA UNICOM China169 Backbone 3.62ms from Changchun, CN
23.247.252.5 AS30639 Computer Marketing Corporation 2.46ms from Draper, US
77.246.118.181 AS42965 net services Beteiligungsgesellschaft mbH trading as net services GmbH & Co. KG 0.32ms from Frankfurt am Main, DE
154.222.225.21 AS400619 AROSSCLOUD INC. 1.36ms from Hong Kong, HK
20.2.205.5 AS8075 Microsoft Corporation 0.31ms from Hong Kong, HK
41.24.231.21 AS36994 Vodacom 1.66ms from Johannesburg, ZA
78.89.204.101 AS29357 NATIONAL MOBILE TELECOMMUNICATIONS COMPANY K.S.C.P. 6.57ms from Kuwait City, KW
188.163.191.5 AS15895 "Kyivstar" PJSC 0.77ms from Kyiv, UA
39.60.251.37 AS17557 Pakistan Telecommunication Company Limited 2.41ms from Lahore, PK
101.249.41.101 AS4134 CHINANET-BACKBONE 0.58ms from Lhasa, CN
175.174.241.117 AS4837 CHINA UNICOM China169 Backbone 9.84ms from Liaoyang, CN
216.239.62.245 AS15169 Google LLC 0.23ms from Miami, US
94.165.219.69 AS1267 WIND TRE S.P.A. 18.71ms from Milan, IT
68.204.30.165 AS33363 Charter Communications, Inc 9.31ms from Orlando, US
34.97.177.229 AS396982 Google LLC 0.09ms from Osaka, JP
58.3.127.229 AS7679 QTnet,Inc. 9.02ms from Osaka, JP
84.244.120.229 AS25248 RADIOKOMUNIKACE a.s. 0.68ms from Prague, CZ
95.52.134.181 AS12389 PJSC Rostelecom 4.71ms from Saint Petersburg, RU
216.115.166.85 AS11676 Conduent Business Services, LLC 2.77ms from Salt Lake City, US
20.226.204.197 AS8075 Microsoft Corporation 0.19ms from Sao Paulo, BR
68.178.6.245 AS7385 Allstream Business US, LLC 1.35ms from Seattle, US
61.42.20.69 AS3786 LG DACOM Corporation 1.40ms from Seoul, KR
85.231.22.69 AS8434 Telenor Sverige AB 2.39ms from Stockholm, SE
210.8.188.101 AS2764 AAPT Limited 0.27ms from Sydney, AU

Traceroute

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

$
traceroute -a -n -q1 -f4 -m12 223.193.43.55
traceroute to 223.193.43.55 (223.193.43.55): 12 hops max, 52 byte packets
5 *
6 *
7 *
8 *
9 [AS7497] 159.226.254.69 23.299 ms
10 *
11 *
12 *
Measurement taken from IPinfo ProbeNet in Huai'an, CN
On

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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