202.121.96.0/23

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Registry	APNIC
ID	CERNET-CN

WHOIS Details

inetnum:        202.112.0.0 - 202.121.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          China Education and Research Network Center
descr:          Tsinghua University
descr:          Beijing, 100084
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:29Z
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Center,
address:        FIT-3-220, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
fax-no:         +86-10-62785933
e-mail:         abuse@cernet.edu.cn
abuse-mailbox:  abuse@cernet.edu.cn
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        abuse@cernet.edu.cn was validated on 2026-03-05
mnt-by:         MAINT-CERNET-AP
last-modified:  2026-03-05T06:39:56Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Center,
address:        FIT-3-220, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
e-mail:         abuse@cernet.edu.cn
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        abuse@cernet.edu.cn was validated on 2026-03-05
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-05T06:40:20Z
source:         APNIC

role:           CERNET Helpdesk
address:        CERNET Center
address:        Beijing 100084, China
country:        CN
phone:          +86-10-6278-4049
fax-no:         +86-10-6278-5933
e-mail:         helpdesk@cernet.edu.cn
remarks:        abuse@cernet.edu.cn
admin-c:        XL1-CN
tech-c:         SZ2-AP
nic-hdl:        CER-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2020-09-03T09:14:12Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 202.121.0.0/16

No nearby ranges found.

Hosted domains

There are 2 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
202.121.97.11	owmgun8.com.tr	2

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
202.121.96.45	AS4538 China Education and Research Network Center	`2.76ms` from Shanghai, 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
24.159.112.7	AS20115 Charter Communications LLC	`7.22ms` from Atlanta, US
93.201.149.119	AS3320 Deutsche Telekom AG	`3.41ms` from Duesseldorf, DE
45.167.128.87	AS264398 NEONET SERVICOS DE TELECOMUNICACOES LTDA	`2.73ms` from Fortaleza, BR
213.56.176.7	AS3215 Orange S.A.	`0.97ms` from Lyon, FR
83.48.107.39	AS3352 TELEFONICA DE ESPANA S.A.U.	`2.50ms` from Madrid, ES
101.143.84.119	AS17511 OPTAGE Inc.	`2.02ms` from Osaka, JP
136.60.228.183	AS16591 Google Fiber Inc.	`0.84ms` from Salt Lake City, US
187.214.226.135	AS8151 UNINET	`7.53ms` from Santiago de Queretaro, MX
80.62.84.71	AS3292 TDC Holding A/S	`2.08ms` from Skanderborg, DK
44.194.119.135	AS14618 Amazon.com, Inc.	`0.50ms` from Ashburn, US
34.220.190.183	AS16509 Amazon.com, Inc.	`0.54ms` from Boardman, US
47.45.53.247	AS400216 Parkway School District	`7.03ms` from Chicago, US
34.170.178.55	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
27.151.122.87	AS4134 CHINANET-BACKBONE	`2.05ms` from Fuzhou, CN
154.214.102.7	AS139880 OWGELS INTERNATIONAL CO., LIMITED	`1.20ms` from Hong Kong, HK
212.145.37.103	AS12430 VODAFONE ESPANA S.A.U.	`13.47ms` from Madrid, ES
112.20.12.103	AS56046 China Mobile communications corporation	`3.13ms` from Nanjing, CN
88.89.212.103	AS2119 Telenor Norge AS	`18.42ms` from Oslo, NO
45.41.157.199	AS11367 WorldNet Telecommunications, LLC	`1.17ms` from San Juan, PR
112.16.177.7	AS56041 China Mobile communications corporation	`7.77ms` from Shanghai, CN
124.171.158.199	AS7545 TPG Telecom Limited	`0.86ms` from Sydney, AU
67.1.246.103	AS209 CenturyLink Communications, LLC	`16.38ms` from Albuquerque, US
38.120.131.23	AS174 Cogent Communications, LLC	`0.28ms` from Atlanta, US
34.223.125.215	AS16509 Amazon.com, Inc.	`0.20ms` from Boardman, US
70.32.155.135	AS15169 Google LLC	`0.56ms` from Council Bluffs, US

Traceroute

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

traceroute -a -n -q1 -f2 -m10 202.121.97.66

traceroute to 202.121.97.66 (202.121.97.66): 10 hops max, 52 byte packets

2 [AS749] 11.73.1.113 1.585 ms

3 *

4 [AS749] 11.94.139.5 1.942 ms

5 *

6 *

7 [AS4538] 101.4.130.25 14.39 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Hohhot, CN

On March 20th 2026

What are IP address ranges?

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