203.196.0.0/21

AS23724  ·  IDC, China Telecommunications Corporation

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Summary

Country China
Domain 21vianet.com
ASN AS23724
Registry APNIC
ID CHINA-21VIANET

WHOIS Details

inetnum:        203.196.0.0 - 203.196.7.255
netname:        CHINA-21VIANET
descr:          21ViaNet(China),Inc.
descr:          BOE Science Park, 10 Jiuxianqiao Road, Chaoyang,
descr:          Beijing 100016, China
country:        CN
admin-c:        ML2382-AP
tech-c:         BW667-AP
abuse-c:        AC1601-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-CNNIC-AP
mnt-lower:      MAINT-CN-21VIANET
mnt-routes:     MAINT-CNNIC-AP
mnt-irt:        IRT-CNNIC-CN
last-modified:  2021-06-16T01:25:22Z
source:         APNIC

irt:            IRT-CNNIC-CN
address:        Beijing, China
e-mail:         ipas@cnnic.cn
abuse-mailbox:  ipas@cnnic.cn
admin-c:        IP50-AP
tech-c:         IP50-AP
auth:           # Filtered
remarks:        Please note that CNNIC is not an ISP and is not
remarks:        empowered to investigate complaints of network abuse.
remarks:        Please contact the tech-c or admin-c of the network.
remarks:        ipas@cnnic.cn is invalid
mnt-by:         MAINT-CNNIC-AP
last-modified:  2025-11-17T23:08:37Z
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:         Cao Wentao
address:        BOE Science Park, 10 Jiuxianqiao Road, Chaoyang,Beijing 100016, China
country:        CN
phone:          +86-10-84562121
fax-no:         +86-10-84564234
e-mail:         abusemail1010@sina.com
nic-hdl:        BW667-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2014-12-26T06:30:02Z
source:         APNIC

person:         Li  Xuesong
address:        BOE Science Park, 10 Jiuxianqiao Road, Chaoyang,Beijing 100016, China
country:        CN
phone:          +86-10-84562121
fax-no:         +86-10-84564234
e-mail:         abuse@21viamail.com
nic-hdl:        ML2382-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2014-12-26T06:30:02Z
source:         APNIC

Overlapping Ranges

BGP prefixes that are contained by 203.196.0.0/21

Range ASN Company Num of IPs
203.196.0.0/22 AS9308 Provide Internet access service,Internet Based Testing 1,024

Nearby Ranges

BGP prefixes that overlap with 203.196.0.0/16

Range ASN Company Num of IPs
203.196.32.0/19 AS38333 Telcoinabox Operations Pty Ltd 8,192
203.196.64.0/20 AS17534 NSK Co.,Ltd. 4,096
203.196.112.0/20 AS2687 Asia Pacific Operations 4,096
203.196.16.0/21 AS2514 INTERLINK Co.,LTD. 2,048
203.196.80.0/21 AS17534 KANAZAWA CABLE TELEVISION NET CO.,LTD. 2,048
203.196.0.0/22 AS9308 Provide Internet access service,Internet Based Testing 1,024
203.196.24.0/22 AS7602 Sai gon Postel Corporation 1,024
203.196.92.0/22 AS7604 Zettagrid Pty Ltd 1,024
203.196.14.0/24 AS23764 Chinatelecom Next Carrying Network backbone Singapore 256
203.196.90.0/24 AS131762 PT. VOLTRAS International 256
203.196.101.0/24 AS2687 AT&T 256
203.196.15.0/24 AS23764 Chinatelecom Next Carrying Network backbone 256

Hosted domains

There are 15 domain names hosted across 7 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP

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

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

IP Address ASN Details
203.196.7.129 AS4835 China Telecom (Group) 1.74ms from Xi’an, CN
203.196.1.6 AS9308 Abitcool(China) Inc. 2.36ms from Beijing, CN
203.196.0.6 AS9308 Abitcool(China) Inc. 2.34ms from Beijing, CN
203.196.4.100 AS56048 China Mobile Communicaitons Corporation 5.91ms 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
38.78.132.117 AS174 Cogent Communications, LLC 1.12ms from Ashburn, US
82.79.120.149 AS8708 DIGI ROMANIA S.A. 7.62ms from Bacau, RO
128.30.196.21 AS3 Massachusetts Institute of Technology 2.26ms from Boston, US
188.36.250.21 AS5483 Magyar Telekom Plc. 0.68ms from Budapest, HU
42.48.121.149 AS4837 CHINA UNICOM China169 Backbone 2.49ms from Changsha, CN
103.143.254.5 AS139716 B.M IT and Cyber Place 0.65ms from Dhaka, BD
20.200.189.21 AS8075 Microsoft Corporation 0.27ms from Dongnae, KR
81.141.136.37 AS2856 British Telecommunications PLC 14.56ms from Erith, GB
3.124.7.21 AS16509 Amazon.com, Inc. 0.13ms from Frankfurt am Main, DE
84.188.246.37 AS3320 Deutsche Telekom AG 3.31ms from Frankfurt am Main, DE
112.149.144.5 AS17858 LG POWERCOMM 3.63ms from Incheon, KR
89.115.82.69 AS12353 Vodafone Portugal 3.28ms from Lisbon, PT
103.139.28.5 AS38220 Amaze Intelligence 0.28ms from Melbourne, AU
63.42.245.85 AS6167 Verizon Business 18.99ms from Santa Clara, US
143.0.187.165 AS264013 CONNECTA TELECOM INTERNET LTDA - EPP 10.88ms from Sao Paulo, BR
43.216.93.53 AS16509 Amazon.com, Inc. 0.44ms from Sepang, MY
218.83.224.5 AS4812 China Telecom (Group) 3.66ms from Shanghai, CN
163.20.167.245 AS1659 Taiwan Academic Network (TANet) Information Center 3.06ms from Taipei, TW
79.184.43.229 AS5617 Orange Polska Spolka Akcyjna 4.87ms from Warsaw, PL
100.15.255.5 AS701 Verizon Business 1.60ms from Ashburn, US
20.185.44.181 AS8075 Microsoft Corporation 0.44ms from Ashburn, US
123.114.43.245 AS4808 China Unicom Beijing Province Network 4.08ms from Beijing, CN
52.81.141.181 AS55960 Beijing Guanghuan Xinwang Digital 3.62ms from Beijing, CN
202.117.96.5 AS4538 China Education and Research Network Center 14.52ms from Chengdu, CN
113.189.32.21 AS45899 VNPT Corp 10.09ms from Da Nang, VN

Traceroute

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

$
traceroute -a -n -q1 -f4 -m11 203.196.6.69
traceroute to 203.196.6.69 (203.196.6.69): 11 hops max, 52 byte packets
4 [AS3356] 4.26.3.26 224.123 ms
5 [AS4837] 219.158.7.121 239.976 ms
6 *
7 *
8 [AS4808] 61.49.214.34 236.235 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Zagreb, HR
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.

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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