210.73.56.0/23

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	210.73.0.0/18
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 was validated on 2025-07-25
mnt-by:         MAINT-CSTNET-CN
last-modified:  2025-07-25T01:16:40Z
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:          210.73.0.0/18
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 210.73.56.0/23

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
210.73.224.0/19	AS4808	Shanghai Hongmao Information Technology Co. Ltd	8,192
210.73.192.0/19	AS4134	Beijing capitalonline data service co.,LTD	8,192
210.73.160.0/19	AS45090	Tencent cloud computing (Beijing) Co., Ltd.	8,192
210.73.128.0/19	AS4134	Wucheng District of Jinhua City huan cheng	8,192
210.73.96.0/20	AS7640	CITIC Group Management Information Department	4,096
210.73.112.0/20	AS4808	CITIC Group Management Information Department	4,096
210.73.16.0/20	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	4,096
210.73.176.0/20	AS45090	Tencent cloud computing (Beijing) Co., Ltd.	4,096
210.73.192.0/22	AS4812	CNLink Network Technology Ltd.	1,024
210.73.32.0/22	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	1,024
210.73.62.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.73.50.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.73.2.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.73.54.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.73.40.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.73.6.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.15.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.60.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.7.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.4.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.48.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.52.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.5.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.1.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.36.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.12.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.10.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.61.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.73.59.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
210.73.56.1	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	2.43ms from Beijing, CN
210.73.57.5	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	5.33ms 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
207.177.40.23	AS19628 Mahaska Communication Group, LLC	6.61ms from Kansas City, US
87.19.237.199	AS3269 Telecom Italia S.p.A.	4.18ms from Milan, IT
51.107.208.231	AS8075 Microsoft Corporation	1.81ms from Oslo, NO
177.161.255.39	AS26599 TELEFÔNICA BRASIL S.A	1.73ms from Osasco, BR
124.222.117.119	AS45090 Shenzhen Tencent Computer Systems Company Limited	0.67ms from Shanghai, CN
88.82.97.55	AS39145 kyberna AG	2.79ms from Zuerich, CH
217.136.254.55	AS5432 Proximus NV	3.91ms from Amsterdam, NL
50.83.13.231	AS30036 Mediacom Communications Corp	11.62ms from Minneapolis, US
189.34.46.23	AS28573 Claro NXT Telecomunicacoes Ltda	10.21ms from Curitiba, BR
47.245.149.231	AS45102 Alibaba (US) Technology Co., Ltd.	1.06ms from Frankfurt am Main, DE
194.105.10.103	AS61120 Vranbit SRL	0.13ms from Gravelines, FR
119.197.174.7	AS4766 Korea Telecom	1.92ms from Seoul, KR
107.2.158.215	AS7922 Comcast Cable Communications, LLC	3.51ms from Denver, US
178.201.65.23	AS3209 Vodafone GmbH	9.30ms from Duesseldorf, DE
172.104.144.87	AS63949 Akamai Connected Cloud	0.13ms from Frankfurt am Main, DE
71.57.101.103	AS7922 Comcast Cable Communications, LLC	5.46ms from Chicago, US
141.61.112.23	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	8.89ms from Frankfurt am Main, DE
216.133.230.23	AS10912 Unitas Global	0.74ms from Los Angeles, US
3.27.245.7	AS16509 Amazon.com, Inc.	0.10ms from Sydney, AU
123.5.150.199	AS4837 CHINA UNICOM China169 Backbone	6.50ms from Zhengzhou, CN
186.70.133.103	AS14522 SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC)	3.72ms from Guayaquil, EC
62.152.58.135	AS3175 Citytelecom LLC	0.40ms from Moscow, RU
14.133.25.135	AS18126 Chubu Telecommunications Company, Inc.	5.23ms from Osaka, JP
219.102.73.183	AS2514 NTT PC Communications, Inc.	15.88ms from Osaka, JP
190.20.203.119	AS7418 TELEFÓNICA CHILE S.A.	2.60ms from Santiago, CL

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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