210.77.14.0/23

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	210.77.0.0/19
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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
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:         [email protected]
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
nic-hdl:        AC2741-AP
remarks:        Generated from irt object IRT-CSTNET-CN
remarks:        [email protected] was validated on 2025-07-25
abuse-mailbox:  [email protected]
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:         [email protected]
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 210.77.14.0/23

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

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
108.49.135.87	AS701 Verizon Business	`1.91ms` from Boston, US
109.136.61.183	AS5432 Proximus NV	`0.99ms` from Brussels, BE
192.119.121.7	AS54290 Hostwinds LLC.	`0.26ms` from Dallas, US
111.230.160.23	AS45090 Shenzhen Tencent Computer Systems Company Limited	`2.22ms` from Guangzhou, CN
211.43.135.55	AS17584 Inchon Metropolitan Office Of Education	`0.85ms` from Incheon, KR
37.134.142.71	AS12479 Orange Espagne SA	`11.12ms` from Madrid, ES
67.244.81.247	AS12271 Charter Communications Inc	`3.37ms` from Newark, US
217.225.249.23	AS3320 Deutsche Telekom AG	`1.26ms` from Nuernberg, DE
90.3.35.231	AS3215 Orange S.A.	`3.13ms` from Paris, FR
2.236.134.7	AS12874 Fastweb SpA	`6.94ms` from Rome, IT
122.252.77.103	AS18318 LG HelloVision Corp.	`10.82ms` from Seoul, KR
116.120.132.71	AS9318 SK Broadband Co Ltd	`7.33ms` from Seoul, KR
194.238.30.87	AS40021 Contabo Inc.	`0.16ms` from St. Louis, US
180.51.132.231	AS4713 NTT DOCOMO BUSINESS,Inc.	`12.14ms` from Tokyo, JP
178.73.26.7	AS9141 P4 Sp. z o.o.	`0.56ms` from Warsaw, PL
169.51.52.87	AS36351 IBM Cloud	`1.18ms` from Amsterdam, NL
123.121.186.199	AS4808 China Unicom Beijing Province Network	`3.74ms` from Beijing, CN
84.2.31.87	AS5483 Magyar Telekom Plc.	`1.00ms` from Budapest, HU
31.46.183.39	AS5483 Magyar Telekom Plc.	`0.78ms` from Budapest, HU
86.191.223.199	AS2856 British Telecommunications PLC	`1.33ms` from Erith, GB
175.178.27.119	AS45090 Shenzhen Tencent Computer Systems Company Limited	`2.17ms` from Guangzhou, CN
124.71.107.7	AS55990 Huawei Cloud Service data center	`1.46ms` from Guangzhou, CN
51.142.199.167	AS8075 Microsoft Corporation	`0.20ms` from London, GB
67.203.31.23	AS21769 Colocation America Corporation	`0.15ms` from Los Angeles, US
99.73.65.87	AS7018 AT&T Enterprises, LLC	`2.73ms` from Miami, US

Traceroute

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

traceroute -a -n -q1 -f4 -m14 210.77.14.101

traceroute to 210.77.14.101 (210.77.14.101): 14 hops max, 52 byte packets

4 [] 110.93.252.136 0.496 ms

5 [] 110.93.255.237 103.549 ms

6 *

7 [AS174] 154.54.0.42 258.885 ms

8 [AS174] 154.18.9.165 271.534 ms

9 [AS7497] 159.226.254.229 293.007 ms

10 [AS7497] 159.226.254.237 292.433 ms

11 [AS7497] 159.226.254.162 304.03 ms

12 *

13 *

14 *

Measurement taken from

IPinfo ProbeNet in Karachi, PK

On January 30th 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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