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:         [email protected]
abuse-mailbox:  [email protected]
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:        [email protected] 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:         [email protected]
admin-c:        IP50-AP
tech-c:         IP50-AP
nic-hdl:        AC1601-AP
remarks:        Generated from irt object IRT-CNNIC-CN
remarks:        [email protected] is invalid
abuse-mailbox:  [email protected]
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:         [email protected]
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:         [email protected]
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	yangguang.com	8
203.196.4.50	http.net.cn	2
203.196.0.6	zjdechuan.com	1
203.196.7.83	acdelcochina.com	1
203.196.4.99	essex.com.cn	1
203.196.7.90	hijiki.com.cn	1
203.196.7.251	chinaev.com	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	`6.59ms` from Beijing, CN
203.196.7.45	AS4835 China Telecom (Group)	`5.90ms` from Beijing, CN
203.196.1.6	AS9308 Abitcool(China) Inc.	`3.17ms` from Beijing, CN
203.196.0.6	AS9308 Abitcool(China) Inc.	`3.16ms` 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
71.120.12.197	AS701 Verizon Business	`2.20ms` from Ashburn, US
155.56.83.181	AS14114 SAP America Inc.	`2.88ms` from Frankfurt am Main, DE
212.98.225.5	AS15924 Vodafone Net Iletisim Hizmetler AS	`1.43ms` from Istanbul, TR
64.31.103.117	AS14265 TPx Communications	`0.58ms` from Los Angeles, US
168.231.112.149	AS47583 Hostinger International Limited	`0.52ms` from Manchester, GB
103.154.250.133	AS141016 SM Investments Corporation	`1.30ms` from Manila, PH
218.216.199.117	AS17698 COMMUNITY NETWORK CENTER INCORPORATED.	`5.61ms` from Osaka, JP
209.222.10.229	AS20473 The Constant Company, LLC	`0.15ms` from Piscataway, US
212.91.220.37	AS12332 PJSC Rostelecom	`1.00ms` from Vladivostok, RU
87.107.77.69	AS42337 Respina Networks & Beyond PJSC	`14.92ms` from Yerevan, AM
34.71.5.245	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
97.178.95.245	AS6167 Verizon Business	`18.71ms` from Dallas, US
51.190.39.85	AS5607 Sky UK Limited	`6.12ms` from Erith, GB
183.2.149.181	AS4134 CHINANET-BACKBONE	`2.07ms` from Guangzhou, CN
83.180.17.165	AS1257 Tele2 Sverige AB	`19.33ms` from Helsinki, FI
91.156.37.181	AS719 Elisa Oyj	`1.26ms` from Helsinki, FI
42.58.217.213	AS4837 CHINA UNICOM China169 Backbone	`4.85ms` from Liaoyang, CN
162.237.151.245	AS7018 AT&T Enterprises, LLC	`3.17ms` from Miami, US
88.172.127.213	AS12322 Free SAS	`15.93ms` from Paris, FR
103.97.155.5	AS135555 City Communications PTY LTD	`0.24ms` from Perth, AU
152.186.208.149	AS701 Verizon Business	`0.55ms` from Philadelphia, US
187.66.137.85	AS28573 Claro NXT Telecomunicacoes Ltda	`11.68ms` from Porto Alegre, BR
88.102.79.21	AS5610 O2 Czech Republic, a.s.	`2.71ms` from Prague, CZ
34.194.80.117	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
195.13.237.165	AS12578 SIA Tet	`0.45ms` from Riga, LV

Traceroute

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

traceroute -a -n -q1 -f3 -m15 203.196.5.86

traceroute to 203.196.5.86 (203.196.5.86): 15 hops max, 52 byte packets

3 [AS12874] 62.101.83.70 9.175 ms

4 [AS12874] 93.63.100.229 18.843 ms

5 [] 217.29.66.63 20.095 ms

6 *

7 *

8 [AS4837] 219.158.4.89 290.922 ms

9 [AS4837] 219.158.9.189 296.606 ms

10 *

11 *

12 [AS4808] 61.149.202.134 358.309 ms

13 *

14 *

15 *

Measurement taken from

IPinfo ProbeNet in Rende, IT

On December 6th 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.

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