210.77.68.0/23

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	210.77.64.0/19
Registry	APNIC
ID	CSTNET-CN

WHOIS Details

inetnum:        210.77.64.0 - 210.77.95.255
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:  2023-10-10T01:38:40Z
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:          210.77.64.0/19
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:  2023-10-06T05:09:25Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.77.68.0/23

Range	ASN	Company	Num of IPs
210.77.64.0/19	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	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
210.77.176.0/20	AS18241	State Power Information Net	4,096
210.77.176.0/20	AS9814	State Power Information Net	4,096
210.77.154.0/24	AS4835	Full Link (China),Inc.	256

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

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

IP Address	ASN	Details
210.77.69.39	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`28.09ms` 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
32.213.113.55	AS46690 Southern New England Telephone Company and SNET America, Inc.	`11.83ms` from Ashburn, US
207.170.172.199	AS7029 Windstream Communications LLC	`0.48ms` from Ashburn, US
107.84.241.231	AS20057 AT&T Enterprises, LLC	`18.02ms` from Atlanta, US
181.3.181.23	AS7303 Telecom Argentina S.A.	`12.28ms` from Buenos Aires, AR
18.119.1.135	AS16509 Amazon.com, Inc.	`0.69ms` from Columbus, US
35.206.101.231	AS15169 Google LLC	`0.11ms` from Council Bluffs, US
14.236.201.87	AS45899 VNPT Corp	`7.25ms` from Da Nang, VN
27.71.238.247	AS7552 Viettel Group	`0.53ms` from Ho Chi Minh City, VN
75.175.152.151	AS209 CenturyLink Communications, LLC	`2.88ms` from Las Vegas, US
85.92.64.7	AS34282 Team Blue Carrier Limited	`1.60ms` from London, GB
182.53.87.71	AS23969 TOT Public Company Limited	`6.14ms` from Bangkok, TH
178.41.68.231	AS6855 Slovak Telekom, a.s.	`1.62ms` from Bratislava, SK
78.21.117.7	AS6848 Telenet BV	`9.30ms` from Brussels, BE
109.56.87.231	AS44034 Hi3G Access AB	`7.41ms` from Copenhagen, DK
27.58.246.167	AS24560 Bharti Airtel Ltd., Telemedia Services	`9.74ms` from Delhi, IN
176.155.238.39	AS5410 Bouygues Telecom SA	`12.19ms` from Frankfurt am Main, DE
168.4.135.71	AS8 Rice University	`3.59ms` from Houston, US
86.182.159.231	AS2856 British Telecommunications PLC	`2.61ms` from London, GB
173.222.45.183	AS20940 Akamai International B.V.	`0.29ms` from Mumbai, IN
24.189.232.183	AS6128 Cablevision Systems Corp.	`2.94ms` from Piscataway, US
44.209.134.231	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
211.57.81.199	AS4766 Korea Telecom	`4.50ms` from Seoul, KR
71.131.201.55	AS55960 Beijing Guanghuan Xinwang Digital	`4.13ms` from Tianjin, CN
102.26.113.167	AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom)	`12.26ms` from Tunis, TN
164.41.229.39	AS21506 Fundação Universidade de Brasília	`0.54ms` from Brasilia, BR

Traceroute

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

traceroute -a -n -q1 -f6 210.77.69.44

traceroute to 210.77.69.44 (210.77.69.44): 64 hops max, 52 byte packets

6 [AS7497] 103.2.211.128 4.501 ms

7 [AS7497] 159.226.254.89 3.305 ms

8 [AS7497] 159.226.254.146 4.306 ms

9 [AS7497] 159.226.253.102 29.054 ms

10 *

11 [AS7497] 210.77.69.44 29.09 ms

Measurement taken from

IPinfo ProbeNet in Beijing, CN

On January 9th 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.

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