210.72.138.0/23

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 210.72.138.0/23

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
65.64.23.71 AS7018 AT&T Enterprises, LLC 9.82ms from Dallas, US
68.232.55.183 AS30027 S & T COMMUNICATIONS LLC 10.72ms from Denver, US
73.144.20.231 AS7922 Comcast Cable Communications, LLC 11.07ms from Flint, US
125.79.156.23 AS4134 CHINANET-BACKBONE 18.39ms from Fuzhou, CN
110.19.40.119 AS4837 CHINA UNICOM China169 Backbone 7.73ms from Hohhot, CN
175.210.93.135 AS4766 Korea Telecom 0.68ms from Incheon, KR
58.123.77.135 AS9318 SK Broadband Co Ltd 1.05ms from Incheon, KR
176.208.30.119 AS12389 PJSC Rostelecom 12.49ms from Krasnoyarsk, RU
159.224.124.151 AS13188 CONTENT DELIVERY NETWORK LTD 4.99ms from Kyiv, UA
208.86.204.55 AS53798 ECOTEL inc. 3.22ms from Montreal, CA
40.128.125.55 AS7029 Windstream Communications LLC 0.18ms from San Jose, US
179.208.180.71 AS28573 Claro NXT Telecomunicacoes Ltda 5.19ms from Sao Paulo, BR
125.46.166.151 AS4837 CHINA UNICOM China169 Backbone 1.29ms from Zhengzhou, CN
34.22.242.215 AS396982 Google LLC 0.14ms from Brussels, BE
94.53.185.231 AS48161 NEXTGEN COMMUNICATIONS SRL 9.59ms from Bucharest, RO
52.141.169.231 AS8075 Microsoft Corporation 0.57ms from Chicago, US
76.76.78.183 AS17306 JAB Wireless, INC. 2.46ms from Denver, US
80.239.152.7 AS1299 Arelion Sweden AB 0.21ms from Frankfurt am Main, DE
63.177.18.215 AS16509 Amazon.com, Inc. 0.18ms from Frankfurt am Main, DE
178.77.72.151 AS8972 Host Europe GmbH 3.13ms from Frankfurt am Main, DE
2.97.147.247 AS13285 TalkTalk Communications Limited 6.52ms from London, GB
109.159.166.39 AS2856 British Telecommunications PLC 3.46ms from London, GB
140.82.19.247 AS20473 The Constant Company, LLC 0.12ms from Los Angeles, US
97.206.191.39 AS6167 Verizon Business 9.51ms from San Jose, US
125.180.81.87 AS17858 LG POWERCOMM 1.95ms 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 -f2 -m15 210.72.138.112
traceroute to 210.72.138.112 (210.72.138.112): 15 hops max, 52 byte packets
5 *
6 *
7 *
8 [] 123.255.91.238 104.164 ms
9 *
10 *
11 [AS7497] 159.226.254.142 141.82 ms
12 [AS7497] 159.226.253.194 176.232 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in Yogyakarta, ID
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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