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
43.130.116.151 AS132203 Tencent Building, Kejizhongyi Avenue 0.32ms from Ashburn, US
208.117.82.183 AS6364 Atlantic.net, Inc. 0.71ms from Ashburn, US
23.4.45.183 AS16625 Akamai Technologies, Inc. 0.24ms from Atlanta, US
182.53.90.55 AS23969 TOT Public Company Limited 1.52ms from Bangkok, TH
160.179.134.7 AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 10.55ms from Casablanca, MA
120.60.123.247 AS9829 National Internet Backbone 13.14ms from Chennai, IN
24.2.21.183 AS7922 Comcast Cable Communications, LLC 11.71ms from Chicago, US
173.217.78.167 AS19108 Optimum 14.64ms from Dallas, US
71.133.199.247 AS7018 AT&T Enterprises, LLC 1.71ms from Los Angeles, US
81.2.133.199 AS203591 TECNO GENERAL S.R.L 1.59ms from Milan, IT
173.22.233.7 AS30036 Mediacom Communications Corp 17.60ms from Minneapolis, US
35.252.47.151 AS396982 Google LLC 6.56ms from Riyadh, SA
186.105.220.39 AS7418 TELEFÓNICA CHILE S.A. 4.00ms from Santiago, CL
189.164.70.167 AS8151 UNINET 5.41ms from Santiago de Queretaro, MX
189.55.5.231 AS28573 Claro NXT Telecomunicacoes Ltda 8.23ms from Sao Paulo, BR
61.185.216.183 AS4134 CHINANET-BACKBONE 1.83ms from Xi'an, CN
96.109.53.87 AS7922 Comcast Cable Communications, LLC 14.14ms from Atlanta, US
67.55.241.167 AS30325 South Slope Cooperative Telephone Company 4.88ms from Chicago, US
190.224.229.87 AS7303 Telecom Argentina S.A. 1.23ms from Cordoba, AR
189.235.254.7 AS8151 UNINET 11.69ms from Guadalajara, MX
121.122.122.55 AS9534 Binariang Berhad 5.18ms from Kuala Lumpur, MY
142.197.17.199 AS33363 Charter Communications, Inc 4.84ms from Orlando, US
219.114.71.231 AS4713 NTT DOCOMO BUSINESS,Inc. 9.95ms from Osaka, JP
54.144.128.199 AS14618 Amazon.com, Inc. 0.19ms from Reston, US
210.205.115.135 AS17878 DREAMMARK1 1.16ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 -m11 210.72.140.59
traceroute to 210.72.140.59 (210.72.140.59): 11 hops max, 52 byte packets
2 *
3 [AS3491] 63.220.66.128 225.008 ms
4 *
6 [AS7497] 159.226.254.237 256.974 ms
7 [AS7497] 159.226.254.146 256.525 ms
8 [AS7497] 159.226.253.194 268.649 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Montreal, CA
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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