202.117.71.0/24

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 Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
fax-no:         +86-10-62785933
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        [email protected] was validated on 2025-08-15
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-11-18T00:26:28Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
e-mail:         [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        [email protected] was validated on 2025-08-15
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-15T09:38:28Z
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:         [email protected]
remarks:        [email protected]
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 202.117.0.0/16

No nearby ranges found.

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
202.117.71.188	AS4538 China Education and Research Network Center	`18.31ms` from Shijiazhuang, 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
165.1.145.248	AS394089 Google LLC	`1.17ms` from Frankfurt am Main, DE
13.200.9.232	AS16509 Amazon.com, Inc.	`0.30ms` from Mumbai, IN
86.195.91.152	AS3215 Orange S.A.	`2.00ms` from Paris, FR
90.30.109.120	AS3215 Orange S.A.	`14.38ms` from Paris, FR
61.67.9.152	AS18413 Great Taipei Broadband Company Ltd.	`1.69ms` from Taipei, TW
171.122.211.200	AS4837 CHINA UNICOM China169 Backbone	`6.29ms` from Taiyuan, CN
126.221.120.152	AS17676 SoftBank Corp.	`3.11ms` from Tokyo, JP
41.83.32.8	AS8346 SONATEL-AS Autonomous System	`2.41ms` from Dakar, SN
189.182.125.168	AS8151 UNINET	`1.10ms` from Guadalajara, MX
121.67.232.104	AS3786 LG DACOM Corporation	`3.09ms` from Incheon, KR
24.45.43.232	AS6128 Cablevision Systems Corp.	`7.46ms` from New York City, US
108.53.120.88	AS701 Verizon Business	`3.17ms` from New York City, US
110.10.212.152	AS9318 SK Broadband Co Ltd	`1.05ms` from Seoul, KR
185.72.39.8	AS3292 TDC Holding A/S	`3.91ms` from Skanderborg, DK
168.110.87.24	AS31898 Oracle Corporation	`1.70ms` from Sydney, AU
89.139.7.24	AS1680 Cellcom Fixed Line Communication L.P	`3.56ms` from Tel Aviv, IL
110.249.83.72	AS4837 CHINA UNICOM China169 Backbone	`7.95ms` from Tianjin, CN
117.203.255.184	AS9829 National Internet Backbone	`11.57ms` from Delhi, IN
181.223.167.168	AS28573 Claro NXT Telecomunicacoes Ltda	`6.08ms` from Joao Pessoa, BR
88.186.34.136	AS12322 Free SAS	`13.12ms` from Paris, FR
35.174.69.56	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
200.142.172.200	AS26104 Telespazio Brasil S.A.	`4.33ms` from Rio de Janeiro, BR
14.32.99.24	AS4766 Korea Telecom	`1.32ms` from Seoul, KR
61.170.165.8	AS4812 China Telecom (Group)	`3.75ms` from Shanghai, CN
77.243.49.120	AS42697 Netic A/S	`3.21ms` from Skanderborg, DK

Traceroute

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

traceroute -a -n -q1 -f10 202.117.71.189

traceroute to 202.117.71.189 (202.117.71.189): 64 hops max, 52 byte packets

10 [AS4538] 202.200.29.22 22.244 ms

11 *

12 [AS4538] 202.117.71.189 19.733 ms

Measurement taken from

IPinfo ProbeNet in Beijing, CN

On January 19th 2026

What are IP address ranges?

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