210.72.140.0/23

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 210.72.128.0/19
Registry APNIC
ID CSTNET-CN

WHOIS Details

inetnum:        210.72.128.0 - 210.72.159.255
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:  2025-11-18T00:35:26Z
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:          210.72.128.0/19
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 210.72.140.0/23

Range ASN Company Num of IPs
210.72.128.0/19 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 8,192

Nearby Ranges

BGP prefixes that overlap with 210.72.0.0/16

Range ASN Company Num of IPs
210.72.0.0/17 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 32,768
210.72.160.0/19 AS4808 China Internet Network Information Center 8,192
210.72.192.0/19 AS4808 Communication Center, China Aerospace 8,192
210.72.128.0/19 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 8,192

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

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
2.203.123.87 AS3209 Vodafone GmbH 2.79ms from Duesseldorf, DE
3.65.110.167 AS16509 Amazon.com, Inc. 0.18ms from Frankfurt am Main, DE
212.79.49.135 AS20783 pop-interactive GmbH 0.40ms from Hamburg, DE
175.146.229.135 AS4837 CHINA UNICOM China169 Backbone 6.65ms from Liaoyang, CN
94.63.127.231 AS12353 Vodafone Portugal 2.09ms from Lisbon, PT
85.138.48.199 AS2860 NOS COMUNICACOES, S.A. 7.49ms from Lisbon, PT
86.174.218.167 AS2856 British Telecommunications PLC 2.60ms from London, GB
189.228.14.199 AS8151 UNINET 1.35ms from Mexico City, MX
71.58.24.247 AS7922 Comcast Cable Communications, LLC 8.31ms from New York City, US
188.93.149.215 AS40509 Fly.io, Inc. 0.09ms from Osasco, BR
190.229.160.71 AS7303 Telecom Argentina S.A. 17.70ms from Rosario, AR
184.25.170.151 AS20940 Akamai International B.V. 0.56ms from San Jose, US
121.144.76.39 AS4766 Korea Telecom 7.12ms from Seoul, KR
52.220.65.23 AS16509 Amazon.com, Inc. 0.09ms from Singapore, SG
113.154.124.119 AS2516 KDDI CORPORATION 6.56ms from Tokyo, JP
27.137.142.199 AS9824 JCOM Co., Ltd. 10.01ms from Tokyo, JP
88.156.121.215 AS29314 VECTRA S.A. 11.91ms from Warsaw, PL
83.78.74.135 AS3303 Swisscom (Switzerland) Ltd 1.40ms from Zuerich, CH
86.82.176.231 AS1136 KPN B.V. 1.91ms from Amsterdam, NL
35.133.199.23 AS20115 Charter Communications LLC 5.10ms from Atlanta, US
68.146.42.119 AS6327 Shaw Communications 4.51ms from Calgary, CA
35.239.55.71 AS396982 Google LLC 0.12ms from Council Bluffs, US
172.215.228.55 AS8075 Microsoft Corporation 3.41ms from Denver, US
95.249.218.23 AS3269 Telecom Italia S.p.A. 5.64ms from Milan, IT
87.174.229.135 AS3320 Deutsche Telekom AG 5.82ms from Nuernberg, DE

Traceroute

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

$
traceroute -a -n -q1 -m11 210.72.140.140
traceroute to 210.72.140.140 (210.72.140.140): 11 hops max, 52 byte packets
2 *
3 [AS3491] 63.218.114.82 59.314 ms
4 [AS3491] 63.220.198.25 59.054 ms
8 [AS7497] 159.226.253.194 102.853 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Osaka, JP
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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