210.77.8.0/22

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	210.77.0.0/19
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:  2025-11-18T00:35:26Z
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:          210.77.0.0/19
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 210.77.8.0/22

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

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

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
210.77.11.205	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`3.53ms` from Beijing, CN
210.77.10.100	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`3.87ms` 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
52.255.143.182	AS8075 Microsoft Corporation	`0.41ms` from Ashburn, US
120.244.105.118	AS56048 China Mobile Communicaitons Corporation	`4.90ms` from Beijing, CN
190.60.236.86	AS18747 IFX Corporation	`0.41ms` from Bogotá, CO
73.8.166.150	AS7922 Comcast Cable Communications, LLC	`11.87ms` from Chicago, US
63.34.159.166	AS16509 Amazon.com, Inc.	`0.16ms` from Dublin, IE
93.211.173.230	AS3320 Deutsche Telekom AG	`2.20ms` from Duesseldorf, DE
62.143.96.86	AS3209 Vodafone GmbH	`6.01ms` from Frankfurt am Main, DE
58.176.42.86	AS9269 Hong Kong Broadband Network Ltd.	`0.84ms` from Hong Kong, HK
46.247.17.22	AS39545 Fluidone Ltd.	`0.54ms` from London, GB
76.170.250.166	AS20001 Charter Communications Inc	`5.46ms` from Los Angeles, US
95.115.6.6	AS6805 Telefonica Germany GmbH & Co.OHG	`17.77ms` from Nuernberg, DE
223.135.184.70	AS2527 Sony Network Communications Inc.	`1.03ms` from Osaka, JP
3.223.107.134	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
27.111.212.102	AS15830 Equinix (EMEA) Acquisition Enterprises B.V.	`0.34ms` from Singapore, SG
124.165.60.118	AS4837 CHINA UNICOM China169 Backbone	`6.95ms` from Taiyuan, CN
149.248.60.230	AS20473 The Constant Company, LLC	`0.15ms` from Toronto, CA
185.127.217.118	AS197423 Jotel d.o.o.	`4.30ms` from Belgrade, RS
34.218.123.22	AS16509 Amazon.com, Inc.	`0.15ms` from Boardman, US
44.244.255.134	AS16509 Amazon.com, Inc.	`0.55ms` from Boardman, US
80.96.19.102	AS48955 Internet Resources Management SRL	`0.45ms` from Bucharest, RO
50.192.117.38	AS7922 Comcast Cable Communications, LLC	`10.29ms` from Chicago, US
64.9.203.86	AS32477 Otava, LLC	`1.37ms` from Detroit, US
36.78.47.86	AS7713 PT Telekomunikasi Indonesia	`6.45ms` from Jakarta, ID
88.30.88.86	AS3352 TELEFONICA DE ESPANA S.A.U.	`2.95ms` from Madrid, ES
79.159.130.134	AS3352 TELEFONICA DE ESPANA S.A.U.	`9.63ms` from Madrid, ES

Traceroute

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

traceroute -a -n -q1 -f3 -m10 210.77.8.108

traceroute to 210.77.8.108 (210.77.8.108): 10 hops max, 52 byte packets

3 [AS38158] 121.100.7.1 30.518 ms

4 [] 123.255.91.238 62.592 ms

5 *

6 [AS7497] 159.226.254.237 102.949 ms

7 [AS7497] 159.226.254.162 98.632 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Denpasar, ID

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.

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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