202.204.208.0/20

AS4538  ·  China Education and Research Network Center

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Summary

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

WHOIS Details

inetnum:        202.204.0.0 - 202.207.255.255
netname:        BJR-CERNET
descr:          China Education and Research Network
descr:          Beijing Regional Network
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:  2020-09-03T09:16:26Z
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 202.204.0.0/16

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
202.204.217.14 cnu.edu.cn 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

Pingable IPs

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

IP Address ASN Details
202.204.208.48 AS4538 China Education and Research Network Center 3.16ms from Beijing, CN
202.204.217.14 AS4538 China Education and Research Network Center 3.57ms 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
101.98.112.228 AS9790 Two Degrees Networks Limited 1.29ms from Auckland, NZ
135.131.42.116 AS4181 TDS TELECOM 3.21ms from Chicago, US
178.210.247.4 AS3320 Deutsche Telekom AG 0.69ms from Frankfurt am Main, DE
14.167.96.132 AS45899 VNPT Corp 3.42ms from Hanoi, VN
61.190.227.116 AS4134 CHINANET-BACKBONE 10.62ms from Huai'an, CN
41.21.188.4 AS36994 Vodacom 0.43ms from Johannesburg, ZA
120.89.6.84 AS9658 Eastern Telecoms Phils., Inc. 0.18ms from Manila, PH
67.242.66.164 AS11351 Charter Communications Inc 12.34ms from New York City, US
177.188.125.244 AS27699 TELEFÔNICA BRASIL S.A 2.63ms from Osasco, BR
86.218.50.20 AS3215 Orange S.A. 2.26ms from Paris, FR
58.239.72.180 AS9318 SK Broadband Co Ltd 6.68ms from Seoul, KR
58.167.145.84 AS1221 Telstra Limited 2.51ms from Sydney, AU
98.188.243.100 AS22773 Cox Communications Inc. 2.85ms from Atlanta, US
24.135.37.228 AS31042 Serbia BroadBand-Srpske Kablovske mreze d.o.o. 4.94ms from Belgrade, RS
158.197.76.68 AS2607 Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET 5.62ms from Bratislava, SK
52.117.223.212 AS36351 IBM Cloud 1.21ms from Dallas, US
52.117.145.180 AS36351 IBM Cloud 0.89ms from Dallas, US
93.239.62.180 AS3320 Deutsche Telekom AG 5.42ms from Duesseldorf, DE
36.75.137.196 AS7713 PT Telekomunikasi Indonesia 19.14ms from Jakarta, ID
34.36.217.52 AS396982 Google LLC 0.07ms from Johannesburg, ZA
3.98.179.244 AS16509 Amazon.com, Inc. 0.15ms from Montreal, CA
73.58.204.164 AS7922 Comcast Cable Communications, LLC 6.24ms from Murfreesboro, US
201.68.247.148 AS27699 TELEFÔNICA BRASIL S.A 3.80ms from Osasco, BR
165.99.6.4 AS153864 National Social Security Fund 1.04ms from Phnom Penh, KH
89.239.175.116 AS12389 PJSC Rostelecom 12.22ms from Samara, RU

Traceroute

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

$
traceroute -a -n -q1 -m9 202.204.213.4
traceroute to 202.204.213.4 (202.204.213.4): 9 hops max, 52 byte packets
4 [AS3491] 63.220.71.25 187.685 ms
5 [AS3491] 63.218.115.14 194.13 ms
6 [AS4538] 101.4.114.221 223.421 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Frankfurt am Main, DE
On

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