203.83.56.0/21

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

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Summary

Country China
Domain caf.ac.cn
ASN AS7497
Registry APNIC
ID CAFNET

WHOIS Details

inetnum:        203.83.56.0 - 203.83.63.255
netname:        CAFNET
descr:          Chinese Academy of Forestry
descr:          Box 33, 1 Dongxiaofu, Xianghongqi, Haidian District,
descr:          Beijing, China 100091
country:        CN
admin-c:        ZX545-AP
tech-c:         FD47-AP
abuse-c:        AC1601-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-CNNIC-AP
mnt-irt:        IRT-CAFNET-CN
mnt-lower:      MAINT-CNNIC-AP
mnt-routes:     MAINT-CN-CSTNET
last-modified:  2023-11-28T00:57:21Z
source:         APNIC

irt:            IRT-CAFNET-CN
address:        Box 33, 1 Dongxiaofu, Xianghongqi, Haidian District, Beijing,China
e-mail:         fan@forestry.ac.cn
abuse-mailbox:  fan@forestry.ac.cn
admin-c:        ZX545-AP
tech-c:         FD47-AP
auth:           # Filtered
mnt-by:         MAINT-CNNIC-AP
last-modified:  2025-11-18T00:34:56Z
source:         APNIC

role:           ABUSE CNNICCN
country:        ZZ
address:        Beijing, China
phone:          +000000000
e-mail:         ipas@cnnic.cn
admin-c:        IP50-AP
tech-c:         IP50-AP
nic-hdl:        AC1601-AP
remarks:        Generated from irt object IRT-CNNIC-CN
remarks:        ipas@cnnic.cn is invalid
abuse-mailbox:  ipas@cnnic.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-19T17:20:32Z
source:         APNIC

person:         Fan Dongpu
nic-hdl:        FD47-AP
e-mail:         fan@forestry.ac.cn
address:        Box 33, 1 Dongxiaofu, Xianghongqi, Haidian District, Beijing,China
phone:          +86-10-62889181
fax-no:         +86-10-62872778
country:        CN
mnt-by:         MAINT-NEW
last-modified:  2008-09-04T07:29:24Z
source:         APNIC

person:         Zhang Xu
nic-hdl:        ZX545-AP
e-mail:         zhangxu@caf.ac.cn
address:        Box 33, 1 Dongxiaofu, Xianghongqi, Haidian District, Beijing,China
phone:          +86-10-62872779
fax-no:         +86-10-62872778
country:        CN
mnt-by:         MAINT-NEW
last-modified:  2008-09-04T07:29:24Z
source:         APNIC

route:          203.83.56.0/21
descr:          Route originated from CSTNET's customers
country:        CN
origin:         AS24420
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-CN-CSTNET
last-modified:  2009-05-21T12:59:26Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.83.0.0/16

Range ASN Company Num of IPs
203.83.96.0/19 AS9513 HK Cable TV Ltd 8,192
203.83.64.0/19 AS9513 HK Cable TV Ltd 8,192
203.83.160.0/19 AS17471 Grameen CyberNet 8,192
203.83.192.0/20 AS16164 Sohonet AU, 4,096
203.83.192.0/20 AS24380 Sohonet AU, 4,096
203.83.240.0/21 AS63997 JMF Co., Ltd 2,048
203.83.48.0/21 AS17458 Sure (Diego Garcia) Limited 2,048
203.83.208.0/21 AS136900 Internet Service Provider (ADSL and Dialup), 2,048
203.83.16.0/21 AS58460 Digicel (PNG) Ltd 2,048
203.83.220.0/22 AS16509 Amazon.com Tech Telecom 1,024
203.83.4.0/22 AS17551 ANYCAST HOLDINGS PTY LTD 1,024
203.83.216.0/23 AS10229 Yahoo Taiwan Corporate Network hosted at Yahoo Taiwan Colo 512
203.83.248.0/23 AS24236 India Bangalore EGL Campus 512
203.83.172.0/24 AS17471 Grameen CyberNet 256
203.83.173.0/24 AS17471 Grameen CyberNet 256
203.83.174.0/24 AS17471 Grameen CyberNet 256
203.83.175.0/24 AS17471 Grameen CyberNet 256
203.83.176.0/24 AS17471 Grameen CyberNet 256
203.83.177.0/24 AS17471 Grameen CyberNet 256
203.83.178.0/24 AS17471 Grameen CyberNet 256
203.83.179.0/24 AS17471 Grameen CyberNet 256
203.83.180.0/24 AS17471 Grameen CyberNet 256
203.83.181.0/24 AS17471 Grameen CyberNet 256
203.83.182.0/24 AS17471 Grameen CyberNet 256
203.83.183.0/24 AS17471 Grameen CyberNet 256
203.83.184.0/24 AS17471 Grameen CyberNet 256
203.83.185.0/24 AS17471 Grameen CyberNet 256
203.83.186.0/24 AS17471 Grameen CyberNet 256
203.83.187.0/24 AS17471 Grameen CyberNet 256
203.83.188.0/24 AS17471 Grameen CyberNet 256
203.83.189.0/24 AS17471 Grameen CyberNet 256
203.83.190.0/24 AS17471 Grameen CyberNet 256
203.83.191.0/24 AS17471 Grameen CyberNet 256
203.83.159.0/24 AS23599 Korea Internet Security Agency 256
203.83.158.0/24 AS23600 Korea Internet Security Agency 256
203.83.26.0/24 AS58378 Badan Aksesibilitas Telekomunikasi dan Informasi (BAKTI) 256
203.83.27.0/24 AS58378 Badan Aksesibilitas Telekomunikasi dan Informasi (BAKTI) 256
203.83.28.0/24 AS58378 Badan Aksesibilitas Telekomunikasi dan Informasi (BAKTI) 256
203.83.219.0/24 AS9290 GoHosting 256
203.83.29.0/24 AS58378 Badan Aksesibilitas Telekomunikasi dan Informasi (BAKTI) 256
203.83.218.0/24 AS141183 Kiwibank, RNZ House, Wellington 256
203.83.160.0/24 AS17471 Grameen CyberNet 256
203.83.161.0/24 AS17471 Grameen CyberNet 256
203.83.162.0/24 AS17471 Grameen CyberNet 256
203.83.163.0/24 AS17471 Grameen CyberNet 256
203.83.164.0/24 AS17471 Grameen CyberNet 256
203.83.165.0/24 AS17471 Grameen CyberNet 256
203.83.166.0/24 AS17471 Grameen CyberNet 256
203.83.167.0/24 AS17471 Grameen CyberNet 256

Hosted domains

There are 11 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
203.83.61.64 cneco.com 6
203.83.61.46 chinanbbc.org 2
203.83.60.171 woodstd.com 1
203.83.61.49 oraix.com 1
203.83.62.10 ifrit.ac.cn 1

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

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
67.17.160.149 AS3549 Level 3 Parent, LLC 0.75ms from Amsterdam, NL
72.63.79.149 AS30058 FDCservers.net 0.21ms from Ashburn, US
77.191.139.101 AS6805 Telefonica Germany GmbH & Co.OHG 3.00ms from Berlin, DE
61.139.152.101 AS4837 CHINA UNICOM China169 Backbone 0.59ms from Changchun, CN
96.10.2.85 AS11426 Charter Communications Inc 0.35ms from Charlotte, US
107.196.5.245 AS7018 AT&T Enterprises, LLC 3.82ms from Dallas, US
24.9.217.133 AS7922 Comcast Cable Communications, LLC 2.06ms from Denver, US
20.200.145.53 AS8075 Microsoft Corporation 0.13ms from Dongnae, KR
50.72.114.117 AS6327 Shaw Communications 19.51ms from Edmonton, CA
47.114.111.21 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 5.75ms from Hangzhou, CN
168.4.133.213 AS8 Rice University 3.56ms from Houston, US
180.66.173.149 AS9318 SK Broadband Co Ltd 1.62ms from Incheon, KR
203.142.69.69 AS17451 BIZNET NETWORKS 0.50ms from Jakarta, ID
208.106.199.5 AS14992 NewtekOne, Inc. 9.72ms from Los Angeles, US
122.53.136.117 AS9299 Philippine Long Distance Telephone Company 0.51ms from Manila, PH
45.232.76.165 AS267252 GARCIA TELECOMUNICACOES LTDA 8.71ms from Osasco, BR
23.42.235.53 AS16625 Akamai Technologies, Inc. 0.06ms from Perth, AU
113.122.187.21 AS4134 CHINANET-BACKBONE 4.95ms from Qingdao, CN
73.193.13.149 AS7922 Comcast Cable Communications, LLC 3.39ms from Seattle, US
41.227.102.53 AS37671 3S INF 19.12ms from Tunis, TN
40.68.209.101 AS8075 Microsoft Corporation 0.24ms from Amsterdam, NL
132.193.186.117 AS668 United States Department of Defense (DoD) 0.60ms from Atlanta, US
91.132.5.5 AS212221 INTERNET BROKER SRL 4.87ms from Bucharest, RO
71.29.218.5 AS7029 Windstream Communications LLC 10.24ms from Dallas, US
75.98.175.165 AS55293 A2 Hosting, Inc. 0.07ms from Detroit, US

Traceroute

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

$
traceroute -a -n -q1 -f5 -m15 203.83.59.114
traceroute to 203.83.59.114 (203.83.59.114): 15 hops max, 52 byte packets
6 *
7 *
8 *
9 [AS6939] 184.104.194.90 38.518 ms
10 *
11 [] 123.255.91.238 39.42 ms
12 [AS7497] 159.226.254.9 72.831 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in Seoul, KR
On

What are IP address ranges?

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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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