203.196.0.0/21

AS23724 · IDC, China Telecommunications Corporation

Need more data or want to access it via API or data downloads? Sign up to get free access

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
203.196.101.0/24	AS2687	AT&T	256
203.196.14.0/24	AS23764	Chinatelecom Next Carrying Network backbone Singapore	256
203.196.15.0/24	AS23764	Chinatelecom Next Carrying Network backbone	256
203.196.90.0/24	AS131762	PT. VOLTRAS International	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
203.196.4.101	netizen.com.cn	8
203.196.4.50	http.net.cn	2
203.196.7.251	chinaev.com	1
203.196.7.83	acdelcochina.com	1
203.196.7.90	hijiki.com.cn	1
203.196.0.6	zjdechuan.com	1
203.196.4.99	essex.com.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

Read more

Pingable IPs

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

IP Address	ASN	Details
203.196.4.100	AS23724 IDC, China Telecommunications Corporation	`6.94ms` from Beijing, CN
203.196.1.6	AS9308 Abitcool(China) Inc.	`3.20ms` from Beijing, CN
203.196.7.245	AS4835 China Telecom (Group)	`5.87ms` from Beijing, CN
203.196.0.6	AS9308 Abitcool(China) Inc.	`3.17ms` 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
24.172.56.213	AS11426 Charter Communications Inc	`1.01ms` from Charlotte, US
20.221.203.181	AS8075 Microsoft Corporation	`0.34ms` from Chicago, US
195.249.212.69	AS3292 TDC Holding A/S	`0.98ms` from Copenhagen, DK
54.228.148.165	AS16509 Amazon.com, Inc.	`0.16ms` from Dublin, IE
89.0.147.69	AS8422 NetCologne Gesellschaft fur Telekommunikation mbH	`1.95ms` from Duesseldorf, DE
217.92.57.149	AS3320 Deutsche Telekom AG	`6.24ms` from Frankfurt am Main, DE
2.220.107.181	AS5607 Sky UK Limited	`3.54ms` from London, GB
86.105.31.133	AS200845 AVATEL TELECOM, SA	`11.17ms` from Madrid, ES
41.212.1.181	AS15399 Wananchi Group (Kenya) Limited	`0.38ms` from Nairobi, KE
221.228.246.5	AS4134 CHINANET-BACKBONE	`3.17ms` from Nanjing, CN
46.218.82.149	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`1.75ms` from Paris, FR
101.76.196.197	AS4538 China Education and Research Network Center	`5.78ms` from Qingdao, CN
94.140.221.5	AS35000 JSC "Severen-Telecom"	`0.70ms` from Saint Petersburg, RU
146.235.216.133	AS31898 Oracle Corporation	`0.19ms` from San Jose, US
67.21.0.197	AS36825 Plug and Play Tech Center	`0.62ms` from San Jose, US
45.79.69.197	AS63949 Akamai Connected Cloud	`0.13ms` from Santa Clara, US
189.252.82.37	AS8151 UNINET	`15.59ms` from Santiago de Queretaro, MX
76.147.108.69	AS7922 Comcast Cable Communications, LLC	`5.95ms` from Seattle, US
49.174.246.101	AS17858 LG POWERCOMM	`3.96ms` from Seoul, KR
200.189.196.245	AS3549 Level 3 Parent, LLC	`0.34ms` from São Paulo, BR
221.242.60.117	AS17506 ARTERIA Networks Corporation	`1.18ms` from Tokyo, JP
2.205.41.117	AS3209 Vodafone GmbH	`3.27ms` from Berlin, DE
134.110.15.181	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`4.78ms` from Berlin, DE
18.7.5.5	AS3 Massachusetts Institute of Technology	`0.43ms` from Boston, US
156.19.230.165	AS20115 Charter Communications LLC	`17.20ms` from Dallas, US

Traceroute

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

traceroute -a -n -q1 -f3 203.196.1.6

traceroute to 203.196.1.6 (203.196.1.6): 64 hops max, 52 byte packets

3 [AS3257] 208.116.220.117 3.686 ms

4 [AS3257] 141.136.109.246 10.102 ms

5 [AS3257] 173.205.61.194 14.937 ms

6 [AS4134] 202.97.93.209 69.936 ms

7 *

8 *

9 *

10 [AS23724] 36.110.245.222 214.913 ms

11 [AS23724] 220.181.17.5 218.776 ms

12 [AS23724] 211.151.224.65 222.813 ms

13 *

14 [AS23724] 211.99.182.238 218.045 ms

15 *

16 *

17 [AS9308] 203.196.1.6 218.085 ms

Measurement taken from

IPinfo ProbeNet in Columbus, US

On November 14th 2025

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales