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Summary

Country	China
Domain	cnic.cn
ASN	AS7497
Registry	APNIC
ID	CSTNET-CN

WHOIS Details

inet6num:       2400:dd00::/28
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:  2023-10-09T03:47:49Z
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 is invalid
mnt-by:         MAINT-CSTNET-CN
last-modified:  2026-02-11T13:10:17Z
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 is invalid
abuse-mailbox:  abuse-ip@cstnet.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-02-11T13:11:38Z
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

route6:         2400:dd00::/28
descr:          CHINA SCIENCE AND TECHNOLOGY NETWORK
country:        CN
origin:         AS7497
notify:         mty@cstnet.cn
mnt-by:         MAINT-CSTNET-CN
last-modified:  2023-10-06T05:09:27Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 2400:dd01:300b::/48

No nearby ranges found.

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

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

IP Address	ASN	Details
2400:dd01:300b::1	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`2.88ms` 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
92.66.211.16	AS1136 KPN B.V.	`0.47ms` from Amsterdam, NL
88.242.189.176	AS9121 Turk Telekomunikasyon Anonim Sirketi	`6.67ms` from Bursa, TR
97.209.63.176	AS6167 Verizon Business	`17.53ms` from Chicago, US
108.253.91.48	AS7018 AT&T Enterprises, LLC	`2.50ms` from Miami, US
163.171.157.224	AS54994 Meteverse Limited.	`0.54ms` from Munich, DE
69.204.140.192	AS11351 Charter Communications Inc	`12.64ms` from New York City, US
187.85.247.96	AS28205 Ibituruna TV por assinatura S/C Ltda	`12.23ms` from Osasco, BR
94.56.136.144	AS5384 Emirates Internet	`5.24ms` from Al Fujairah City, AE
141.23.72.64	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`1.06ms` from Berlin, DE
192.3.239.16	AS36352 HostPapa	`0.14ms` from Buffalo, US
222.245.58.160	AS4134 CHINANET-BACKBONE	`3.22ms` from Changsha, CN
3.12.254.176	AS16509 Amazon.com, Inc.	`0.13ms` from Columbus, US
91.17.9.208	AS3320 Deutsche Telekom AG	`7.56ms` from Frankfurt am Main, DE
47.87.166.0	AS45102 Alibaba (US) Technology Co., Ltd.	`0.90ms` from Frankfurt am Main, DE
87.222.103.128	AS12479 Orange Espagne SA	`8.32ms` from Madrid, ES
98.113.197.112	AS701 Verizon Business	`2.30ms` from New York City, US
78.118.106.48	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`18.59ms` from Paris, FR
176.159.11.224	AS5410 Bouygues Telecom SA	`2.19ms` from Saint-Denis, FR
162.192.5.96	AS7018 AT&T Enterprises, LLC	`3.77ms` from San Jose, US
39.164.171.176	AS24445 Henan Mobile Communications Co.,Ltd	`5.51ms` from Zhengzhou, CN
84.194.90.112	AS6848 Telenet BV	`7.21ms` from Brussels, BE
83.180.226.16	AS1257 Tele2 Sverige AB	`4.87ms` from Goeteborg, SE
86.200.99.160	AS3215 Orange S.A.	`9.79ms` from Marseille, FR
80.251.142.112	AS21446 SOTEL LLC	`1.02ms` from Moscow, RU
189.140.56.80	AS8151 UNINET	`13.06ms` from Santiago de Queretaro, MX

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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