202.203.187.0/24

AS4538  ·  China Education and Research Network Center

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Summary

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

WHOIS Details

inetnum:        202.202.0.0 - 202.203.255.255
netname:        CDR-CERNET
descr:          China Education and Research Network
descr:          Chengdu Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ASSIGNED NON-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:  2021-03-24T13:05:10Z
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

Nearby Ranges

BGP prefixes that overlap with 202.203.0.0/16

No nearby ranges found.

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP

Hosted domains API

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Useful for Cybersecurity

Pingable IPs

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

IP Address ASN Details
202.203.187.13 AS4538 China Education and Research Network Center 19.70ms from Chengdu, 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
20.61.28.152 AS8075 Microsoft Corporation 0.23ms from Amsterdam, NL
70.110.20.136 AS701 Verizon Business 2.06ms from Ashburn, US
173.93.180.40 AS11426 Charter Communications Inc 15.34ms from Atlanta, US
40.138.143.120 AS7029 Windstream Communications LLC 0.44ms from Atlanta, US
73.42.117.104 AS7922 Comcast Cable Communications, LLC 14.47ms from Denver, US
89.217.217.248 AS6730 Sunrise GmbH 3.15ms from Geneve, CH
47.239.222.248 AS45102 Alibaba (US) Technology Co., Ltd. 0.47ms from Hong Kong, HK
213.14.214.40 AS34984 Superonline Iletisim Hizmetleri A.S. 3.85ms from Istanbul, TR
81.100.239.56 AS5089 Virgin Media Limited 10.77ms from London, GB
205.154.146.136 AS398963 Long Beach Unified School District 1.42ms from Los Angeles, US
193.33.132.168 AS25490 PJSC Rostelecom 16.24ms from Moscow, RU
50.16.234.56 AS14618 Amazon.com, Inc. 0.20ms from Reston, US
2.42.48.104 AS30722 Vodafone Italia S.p.A. 2.91ms from Rome, IT
2.65.215.24 AS44034 Hi3G Access AB 6.92ms from Stockholm, SE
188.156.230.232 AS5483 Magyar Telekom Plc. 7.84ms from Budapest, HU
68.145.101.72 AS6327 Shaw Communications 7.30ms from Calgary, CA
84.163.3.56 AS3320 Deutsche Telekom AG 4.64ms from Hamburg, DE
18.130.155.88 AS16509 Amazon.com, Inc. 0.17ms from London, GB
172.14.119.216 AS7018 AT&T Enterprises, LLC 16.86ms from Los Angeles, US
87.4.36.184 AS3269 Telecom Italia S.p.A. 3.40ms from Milan, IT
58.190.230.88 AS17511 OPTAGE Inc. 2.71ms from Osaka, JP
218.40.253.40 AS17936 Cable Television Kani Co.,Inc. 6.69ms from Osaka, JP
23.205.228.120 AS16625 Akamai Technologies, Inc. 0.14ms from Osasco, BR
95.231.175.200 AS3269 Telecom Italia S.p.A. 2.45ms from Rome, IT
208.32.161.40 AS3643 Sprint 0.53ms from Secaucus, US

Traceroute

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

$
traceroute -a -n -q1 -f14 202.203.187.135
traceroute to 202.203.187.135 (202.203.187.135): 64 hops max, 52 byte packets
14 [AS9808] 221.183.90.85 3.136 ms
15 [AS9808] 221.183.20.122 7.761 ms
16 [AS4538] 101.4.116.101 5.721 ms
17 [AS4538] 101.4.117.137 18.684 ms
18 [AS4538] 101.4.116.186 22.518 ms
19 [AS4538] 202.112.38.98 18.995 ms
20 *
21 *
22 *
23 [AS4538] 202.203.187.135 19.861 ms
Measurement taken from IPinfo ProbeNet in Chengdu, CN
On

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