202.197.0.0/20

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 202.192.0.0/13
Registry APNIC
ID CERNET-CN

WHOIS Details

inetnum:        202.192.0.0 - 202.199.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          SY Region
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:        service provider
remarks:        hostmaster@apnic.net 960130
mnt-by:         APNIC-HM
mnt-irt:        IRT-CERNET-AP
last-modified:  2021-10-30T08:29:34Z
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
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:         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:        http://www.ccert.edu.cn
remarks:        abuse@cernet.edu.cn 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:         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 2025-08-15
abuse-mailbox:  abuse@cernet.edu.cn
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:         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

Overlapping Ranges

BGP prefixes that contain 202.197.0.0/20

Range ASN Company Num of IPs
202.192.0.0/13 AS4538 China Education and Research Network 524,288

Nearby Ranges

BGP prefixes that overlap with 202.197.0.0/16

Range ASN Company Num of IPs
202.192.0.0/13 AS4538 China Education and Research Network 524,288

Hosted domains

There are no domains currently hosted on this ASN.

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

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

IP Address ASN Details
202.197.9.89 AS4538 China Education and Research Network Center 7.80ms from Wuhan, 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
135.131.73.180 AS4181 TDS TELECOM 10.42ms from Atlanta, US
79.244.146.20 AS3320 Deutsche Telekom AG 2.12ms from Berlin, DE
207.147.237.68 AS10770 AT&T Enterprises, LLC 0.71ms from Chicago, US
128.1.152.148 AS62610 Zenlayer Inc 0.22ms from Hong Kong, HK
82.223.125.4 AS8560 IONOS SE 0.59ms from Logrono, ES
212.140.169.148 AS2856 British Telecommunications PLC 3.74ms from London, GB
92.207.189.36 AS31655 Gamma Telecom Holdings Ltd 0.43ms from London, GB
193.237.170.4 AS5378 Vodafone Limited 4.94ms from London, GB
136.26.89.148 AS19165 Webpass Inc. 3.44ms from Los Angeles, US
165.154.58.212 AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED 0.10ms from Manila, PH
27.216.107.244 AS4837 CHINA UNICOM China169 Backbone 8.06ms from Qingdao, CN
104.79.197.4 AS24319 Akamai Technologies Tokyo ASN 0.39ms from Tokyo, JP
121.2.172.4 AS2527 Sony Network Communications Inc. 1.94ms from Tokyo, JP
123.54.6.196 AS4134 CHINANET-BACKBONE 9.26ms from Zhengzhou, CN
20.16.20.228 AS8075 Microsoft Corporation 0.27ms from Amsterdam, NL
81.184.137.52 AS6739 VODAFONE ONO, S.A. 6.80ms from Barcelona, ES
154.17.167.116 AS397373 H4Y Technologies LLC 0.14ms from Bend, US
94.52.86.52 AS48161 NEXTGEN COMMUNICATIONS SRL 4.37ms from Bucharest, RO
195.227.212.180 AS8469 CANCOM Managed Services GmbH 0.49ms from Frankfurt am Main, DE
189.181.243.196 AS8151 UNINET 5.76ms from Guadalajara, MX
14.228.253.244 AS45899 VNPT Corp 5.03ms from Hanoi, VN
74.242.213.20 AS8075 Microsoft Corporation 0.17ms from Kloten, CH
93.171.119.36 AS42772 Unitary enterprise A1 0.49ms from Minsk, BY
177.145.71.116 AS26599 TELEFÔNICA BRASIL S.A 3.17ms from Osasco, BR
189.82.79.244 AS7738 V tal 6.82ms from Rio de Janeiro, BR

Traceroute

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

$
traceroute -a -n -q1 -f2 -m18 202.197.4.226
traceroute to 202.197.4.226 (202.197.4.226): 18 hops max, 52 byte packets
2 [AS4134] 106.60.11.30 2.886 ms
3 *
4 *
5 *
6 [AS4134] 106.59.253.17 4.921 ms
8 *
9 *
10 *
11 [AS4538] 101.4.117.125 43.296 ms
12 [AS4538] 101.4.118.213 39.831 ms
13 [AS4538] 101.4.112.37 47.04 ms
14 [AS4538] 101.4.115.66 46.828 ms
15 [AS4538] 210.43.46.201 46.112 ms
16 *
17 *
18 *
Measurement taken from IPinfo ProbeNet in Kunming, CN
On

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