210.77.26.0/23

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	210.77.24.0/21
Registry	APNIC
ID	CSTNET-CN

WHOIS Details

inetnum:        210.77.0.0 - 210.77.31.255
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:  2023-10-10T01:38:39Z
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:          210.77.0.0/19
descr:          China Science & Technology Network
country:        CN
origin:         AS7497
mnt-by:         MAINT-CSTNET-CN
last-modified:  2023-10-06T05:09:24Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.77.26.0/23

Range	ASN	Company	Num of IPs
210.77.24.0/21	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	2,048
210.77.0.0/19	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	8,192

Nearby Ranges

BGP prefixes that overlap with 210.77.0.0/16

Range	ASN	Company	Num of IPs
210.77.0.0/19	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	8,192
210.77.128.0/19	AS4835	21ViaNet(China),Inc.	8,192
210.77.128.0/19	AS23724	21ViaNet(China),Inc.	8,192
210.77.192.0/19	AS4808	China Broadcasting Shandong Network Co., Ltd. Jinan Branch	8,192
210.77.224.0/19	AS4808	China Great Wall Network	8,192
210.77.64.0/19	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	8,192
210.77.128.0/19	AS9802	21ViaNet(China),Inc.	8,192
210.77.208.0/20	AS4808	Enterprise user of JNGDNET	4,096
210.77.48.0/20	AS4808	China Internet Network Information Center	4,096
210.77.0.0/21	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	2,048
210.77.32.0/21	AS4808	China Internet Network Information Center	2,048
210.77.16.0/21	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	2,048
210.77.40.0/21	AS4808	China Internet Network Information Center	2,048
210.77.8.0/21	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	2,048
210.77.24.0/21	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	2,048
210.77.72.0/22	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	1,024
210.77.4.0/22	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	1,024
210.77.8.0/22	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	1,024
210.77.88.0/22	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	1,024
210.77.92.0/22	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	1,024
210.77.68.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.77.86.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.77.58.0/23	AS4808	China Internet Network Information Center	512
210.77.80.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.77.22.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.77.84.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.77.78.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.77.2.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.77.24.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.77.14.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.77.12.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
210.77.65.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.77.180.0/24	AS4808	State Power Information Net	256
210.77.67.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.77.76.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.77.179.0/24	AS18241	State Power Information Net	256
210.77.183.0/24	AS18241	State Power Information Net	256
210.77.64.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.77.178.0/24	AS18241	State Power Information Net	256
210.77.77.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.77.177.0/24	AS18241	State Power Information Net	256
210.77.91.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.77.176.0/24	AS18241	State Power Information Net	256
210.77.71.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.77.189.0/24	AS18241	State Power Information Net	256
210.77.82.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
210.77.191.0/24	AS18241	State Power Information Net	256
210.77.190.0/24	AS4808	State Power Information Net	256
210.77.66.0/24	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

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
50.85.27.39	AS8075 Microsoft Corporation	0.23ms from Amsterdam, NL
52.178.108.23	AS8075 Microsoft Corporation	0.21ms from Amsterdam, NL
199.102.186.39	AS26479 Point Broadband Fiber Holding, LLC	11.71ms from Ashburn, US
139.91.84.7	AS8522 Foundation of Research and Technology Hellas	8.15ms from Athens, GR
184.58.232.87	AS10796 Charter Communications Inc	4.99ms from Chicago, US
20.59.224.23	AS8075 Microsoft Corporation	0.92ms from Chicago, US
23.112.243.103	AS7018 AT&T Enterprises, LLC	3.02ms from Dallas, US
187.36.76.167	AS28573 Claro NXT Telecomunicacoes Ltda	8.56ms from Fortaleza, BR
77.235.162.247	AS21413 Envia Tel GmbH	5.30ms from Frankfurt am Main, DE
117.25.139.55	AS4134 CHINANET-BACKBONE	4.71ms from Fuzhou, CN
172.11.141.167	AS7018 AT&T Enterprises, LLC	6.75ms from Miami, US
92.225.151.183	AS6805 Telefonica Germany GmbH & Co.OHG	12.66ms from Munich, DE
38.49.89.55	AS31775 Greenlight Networks, LLC	7.73ms from New York City, US
118.105.216.247	AS18126 Chubu Telecommunications Company, Inc.	4.10ms from Osaka, JP
211.32.72.151	AS3786 LG DACOM Corporation	1.46ms from Seoul, KR
4.172.67.103	AS8075 Microsoft Corporation	0.17ms from Toronto, CA
20.13.86.7	AS8075 Microsoft Corporation	0.24ms from Amsterdam, NL
41.37.29.199	AS8452 TE-AS	5.49ms from Cairo, EG
45.22.124.55	AS7018 AT&T Enterprises, LLC	18.58ms from Chicago, US
5.192.153.151	AS5384 Emirates Internet	9.14ms from Dubai, AE
68.219.59.135	AS8075 Microsoft Corporation	0.24ms from Dublin, IE
78.149.197.167	AS13285 TalkTalk Communications Limited	6.49ms from London, GB
209.37.59.231	AS398943 Liberator Medical Supply, Inc.	3.73ms from Miami, US
180.109.23.119	AS4134 CHINANET-BACKBONE	1.20ms from Nanjing, CN
141.149.62.119	AS701 Verizon Business	4.00ms from New York City, US

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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