1. All IP Ranges
  2. 103.0.0.0/8
  3. 103.2.0.0/16
  4. AS7497  | 103.2.208.0/22

103.2.208.0/22

AS7497  ·  Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)

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Summary

Country China
Domain cnic.cn
ASN AS7497
Registry APNIC
ID CSTNET-CN

WHOIS Details

inetnum:        103.2.208.0 - 103.2.211.255
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:  2023-10-12T05:17:25Z
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:          103.2.208.0/22
descr:          Chinese Science & Technology Network.
country:        CN
origin:         AS7497
mnt-by:         MAINT-CSTNET-CN
last-modified:  2023-10-06T05:09:14Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 103.2.0.0/16

Range ASN Company Num of IPs
103.2.160.0/22 AS10013 FreeBit Co., Ltd. 1,024
103.2.32.0/22 AS24259 kanuma cable television Corporation 1,024
103.2.100.0/22 AS2514 NTT PC Communications,Inc. 1,024
103.2.48.0/22 AS2527 So-net Service 1,024
103.2.128.0/22 AS38639 NTT DOCOMO BUSINESS, Inc. 1,024
103.2.144.0/22 AS38896 PT. Centra Global Investama 1,024
103.2.184.0/22 AS45345 Nautile SARL 1,024
103.2.152.0/22 AS45356 Mobitel Pvt Ltd 1,024
103.2.92.0/22 AS45370 BROADBANDIDC 1,024
103.2.112.0/22 AS45441 SheepLink Co.,Ltd. 1,024
103.2.88.0/22 AS45891 Solomon Telekom Co Ltd 1,024
103.2.180.0/22 AS4628 Pacific Internet Pte Ltd 1,024
103.2.44.0/22 AS4686 GENESIS co.,ltd 1,024
103.2.108.0/22 AS4847 Beijing Tonghui netlink data technology Co., Ltd. 1,024
103.2.0.0/22 AS55385 Yamanashi Prefectural Government 1,024
103.2.248.0/22 AS55391 INTERNET MULTIFEED CO. 1,024
103.2.252.0/22 AS55392 INTERNET MULTIFEED CO. 1,024
103.2.244.0/22 AS55898 LY Corporation 1,024
103.2.60.0/22 AS7505 FUJITSU LIMITED 1,024
103.2.52.0/22 AS7524 ITEC Hankyu Hanshin Co.,Ltd. 1,024
103.2.4.0/22 AS7679 QTnet,Inc. 1,024
103.2.168.0/22 AS9268 Over The Wire Pty Ltd 1,024
103.2.136.0/22 AS9365 its communications Inc. 1,024
103.2.36.0/22 AS9997 Suzuka Cable Co.,Ltd 1,024
103.2.228.0/22 AS131386 Long Van System Solution JSC 1,024
103.2.224.0/22 AS131423 Long Van System Solution JSC 1,024
103.2.240.0/22 AS137455 Sovereign Cloud Australia Pty Ltd 1,024
103.2.24.0/22 AS17693 YAMATO SYSTEM DEVELOPMENT CO., LTD. 1,024
103.2.96.0/22 AS17958 Kasaoka Cable Vision LIMITED 1,024
103.2.148.0/22 AS18001 Dialog Telekom Plc 1,024
103.2.20.0/22 AS18126 Chubu Telecommunications Co.,Inc. 1,024
103.2.64.0/22 AS18260 EHIME CATV CO.,LTD. 1,024
103.2.140.0/22 AS23352 Sand Dune Mail Ltd 1,024
103.2.8.0/23 AS24257 Japan Internet Exchange Co., Ltd. 512
103.2.30.0/23 AS38631 LINE Corporation 512
103.2.234.0/24 AS131210 YASHTEL Yashash Cable Network Pvt Ltd 256
103.2.235.0/24 AS131210 YASHTEL Yashash Cable Network Pvt Ltd 256
103.2.198.0/24 AS45671 Servers Australia Pty Ltd 256
103.2.199.0/24 AS45671 Servers Australia Pty Ltd 256
103.2.144.0/24 AS38896 PT. Centra Global Investama 256
103.2.240.0/24 AS137455 Sovereign Cloud Australia Pty Ltd 256
103.2.80.0/24 AS150172 Serverfreak Technologies Sdn Bhd 256
103.2.29.0/24 AS17661 NHN Cloud Japan Corporation 256
103.2.145.0/24 AS38896 PT. Centra Global Investama 256
103.2.146.0/24 AS38896 PT. Centra Global Investama 256
103.2.232.0/24 AS131210 YASHTEL 256
103.2.121.0/24 AS18015 Atlantech Hosting 256
103.2.182.0/24 AS4628 OSINet 256
103.2.183.0/24 AS4628 OSINet 256

Hosted domains

There are no domains currently hosted on this ASN.

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Pingable IPs

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

IP Address ASN Details
103.2.211.153 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 1.52ms from Beijing, CN
103.2.208.249 AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 32.32ms from Hong Kong, HK

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
105.110.81.214 AS36947 Telecom Algeria 12.22ms from Algiers, DZ
77.174.190.54 AS1136 KPN B.V. 1.05ms from Amsterdam, NL
121.79.223.22 AS17705 InSPire Net Ltd 9.06ms from Auckland, NZ
45.247.255.198 AS24863 Link Egypt (Link.NET) 11.16ms from Cairo, EG
23.209.213.70 AS16625 Akamai Technologies, Inc. 0.29ms from Duesseldorf, DE
3.75.237.70 AS16509 Amazon.com, Inc. 0.38ms from Frankfurt am Main, DE
80.87.112.6 AS35062 Teamnet GmbH 4.21ms from Frankfurt am Main, DE
159.122.97.22 AS36351 IBM Cloud 0.73ms from Frankfurt am Main, DE
34.88.97.246 AS396982 Google LLC 0.13ms from Hamina, FI
217.35.148.70 AS2856 British Telecommunications PLC 7.41ms from London, GB
47.145.178.150 AS5650 Frontier Communications of America, Inc. 4.77ms from Los Angeles, US
208.123.61.118 AS16904 Arvig Enterprises Inc. 11.60ms from Minneapolis, US
190.132.22.166 AS6057 Administracion Nacional de Telecomunicaciones 3.44ms from Montevideo, UY
95.131.26.198 AS49063 Data Storage Center JSC 0.70ms from Moscow, RU
128.6.159.22 AS46 Rutgers, The State University 1.74ms from New York City, US
154.38.179.134 AS40021 Contabo Inc. 0.18ms from Newark, US
72.238.1.214 AS33363 Charter Communications, Inc 6.66ms from Orlando, US
77.159.6.198 AS15557 Societe Francaise Du Radiotelephone - SFR SA 2.27ms from Paris, FR
195.83.121.6 AS2200 Renater 6.82ms from Paris, FR
104.176.89.6 AS7018 AT&T Enterprises, LLC 3.33ms from San Antonio, US
91.142.136.6 AS62319 Itm8 A/S 0.98ms from Skanderborg, DK
153.210.199.38 AS4713 NTT DOCOMO BUSINESS,Inc. 3.54ms from Tokyo, JP
147.86.2.230 AS559 SWITCH 3.62ms from Zuerich, CH
77.172.116.70 AS1136 KPN B.V. 2.81ms from Amsterdam, NL
141.144.206.214 AS31898 Oracle Corporation 0.14ms from Amsterdam, NL

Traceroute

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

$
traceroute -a -n -q1 -m9 103.2.210.176
traceroute to 103.2.210.176 (103.2.210.176): 9 hops max, 52 byte packets
1 [AS15169] 72.14.234.209 17.086 ms
3 [AS3491] 63.220.199.250 17.683 ms
4 *
5 [AS3491] 63.220.198.25 254.111 ms
6 [AS7497] 159.226.254.229 303.596 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Berlin, DE
On

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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