210.73.5.0/24

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	210.73.0.0/18
Registry	APNIC
ID	CSTNET-CN

WHOIS Details

inetnum:        210.73.0.0 - 210.73.63.255
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 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

route:          210.73.0.0/18
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 210.73.5.0/24

Range	ASN	Company	Num of IPs
210.73.0.0/18	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	16,384

Nearby Ranges

BGP prefixes that overlap with 210.73.0.0/16

Range	ASN	Company	Num of IPs
210.73.0.0/18	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	16,384
210.73.64.0/19	AS18239	(CPIP)Beijing Information Highway Corp	8,192
210.73.128.0/19	AS4134	Wucheng District of Jinhua City huan cheng	8,192
210.73.160.0/19	AS45090	Tencent cloud computing (Beijing) Co., Ltd.	8,192
210.73.224.0/19	AS4808	Shanghai Hongmao Information Technology Co. Ltd	8,192
210.73.208.0/20	AS4808	Beijing capitalonline data service co.,LTD	4,096

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

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

IP Address	ASN	Details
210.73.5.114	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`1.77ms` 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
168.235.224.200	AS396982 Google LLC	`0.17ms` from Council Bluffs, US
75.157.236.24	AS852 TELUS Communications Inc.	`1.54ms` from Kelowna, CA
81.152.253.56	AS2856 British Telecommunications PLC	`5.98ms` from London, GB
69.118.115.200	AS6128 Cablevision Systems Corp.	`9.21ms` from New York City, US
153.142.41.136	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.94ms` from Osaka, JP
18.232.220.232	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
94.19.106.168	AS35807 SkyNet Ltd.	`0.57ms` from Saint Petersburg, RU
220.143.84.120	AS3462 Data Communication Business Group	`7.72ms` from Taipei, TW
41.99.104.248	AS36947 Telecom Algeria	`10.03ms` from Valencia, ES
119.31.119.8	AS45781 NB-IoT	`1.42ms` from Bangkok, TH
44.235.204.104	AS16509 Amazon.com, Inc.	`0.15ms` from Boardman, US
80.171.222.24	AS6805 Telefonica Germany GmbH & Co.OHG	`3.95ms` from Duesseldorf, DE
78.42.99.88	AS3209 Vodafone GmbH	`11.56ms` from Frankfurt am Main, DE
80.223.230.104	AS1759 Telia Finland Oyj	`1.82ms` from Helsinki, FI
151.83.84.184	AS1267 WIND TRE S.P.A.	`8.84ms` from Milan, IT
5.48.191.88	AS5410 Bouygues Telecom SA	`19.72ms` from Paris, FR
179.57.170.56	AS14117 Telefonica del Sur S.A.	`2.60ms` from Santiago, CL
27.234.2.24	AS4766 Korea Telecom	`2.07ms` from Seoul, KR
203.71.245.168	AS1659 Taiwan Academic Network (TANet) Information Center	`2.73ms` from Taipei, TW
125.199.184.24	AS2518 BIGLOBE Inc.	`10.07ms` from Tokyo, JP
90.250.184.248	AS5378 Vodafone Limited	`5.82ms` from Edinburgh, GB
3.124.127.168	AS16509 Amazon.com, Inc.	`0.17ms` from Frankfurt am Main, DE
120.27.177.88	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.07ms` from Hangzhou, CN
89.116.142.40	AS136787 PacketHub S.A.	`0.18ms` from Miami, US
114.156.252.40	AS4713 NTT DOCOMO BUSINESS,Inc.	`10.01ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 -f4 210.73.5.59

traceroute to 210.73.5.59 (210.73.5.59): 64 hops max, 52 byte packets

4 [AS3491] 63.218.114.82 181.737 ms

5 [AS3491] 63.220.198.25 181.433 ms

6 [AS7497] 159.226.254.229 213.676 ms

7 [AS7497] 159.226.254.237 216.146 ms

8 [AS7497] 159.226.254.98 214.308 ms

9 [AS7497] 159.226.254.54 213.447 ms

10 [AS7497] 210.73.5.59 214.205 ms

Measurement taken from

IPinfo ProbeNet in San Antonio, US

On April 24th 2026

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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