202.202.224.0/20

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Registry APNIC
ID 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 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 202.202.0.0/16

No nearby ranges found.

Hosted domains

There is 1 domain name hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
202.202.232.28 tmmu.edu.cn 1
202.202.232.115 tmmu.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

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

IP Address ASN Details
202.202.232.151 AS4538 China Education and Research Network Center 22.10ms from Wuhan, CN
202.202.230.255 AS4538 China Education and Research Network Center 26.67ms from Changsha, CN
202.202.235.255 AS4538 China Education and Research Network Center 27.98ms from Changsha, 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
77.167.168.116 AS1136 KPN B.V. 6.97ms from Amsterdam, NL
98.64.202.84 AS8075 Microsoft Corporation 0.21ms from Amsterdam, NL
175.29.77.212 AS174 Cogent Communications, LLC 0.32ms from Ashburn, US
122.57.28.196 AS4771 Spark New Zealand Trading Ltd. 0.67ms from Auckland, NZ
123.56.61.68 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 1.61ms from Beijing, CN
54.212.78.4 AS16509 Amazon.com, Inc. 0.18ms from Boardman, US
162.159.250.52 AS13335 Cloudflare, Inc. 0.15ms from Buenos Aires, AR
14.168.86.180 AS45899 VNPT Corp 3.78ms from Ho Chi Minh City, VN
162.234.151.196 AS7018 AT&T Enterprises, LLC 17.12ms from Houston, US
95.183.135.100 AS8517 National Academic Network and Information Center 10.34ms from Istanbul, TR
78.93.178.4 AS58250 ARABIAN INTERNET & COMMUNICATIONS SERVICES CO.LTD 1.36ms from Jeddah, SA
96.3.93.116 AS11232 Midcontinent Communications 15.06ms from Minneapolis, US
88.41.161.68 AS3269 Telecom Italia S.p.A. 10.16ms from Rome, IT
165.22.159.132 AS14061 DigitalOcean, LLC 0.28ms from San Jose, US
95.181.217.180 AS136787 PacketHub S.A. 0.31ms from Seattle, US
14.67.44.68 AS4766 Korea Telecom 1.75ms from Seoul, KR
118.27.9.4 AS7506 GMO Internet Group, Inc. 0.52ms from Tokyo, JP
91.222.186.4 AS210945 Grupa Pracuj S.A. 0.45ms from Warsaw, PL
195.117.111.20 AS5617 Orange Polska Spolka Akcyjna 0.71ms from Warsaw, PL
89.155.206.228 AS2860 NOS COMUNICACOES, S.A. 7.66ms from Braga, PT
34.60.100.164 AS396982 Google LLC 0.11ms from Council Bluffs, US
171.250.98.244 AS7552 Viettel Group 1.18ms from Ho Chi Minh City, VN
210.98.21.4 AS10070 KRISS SubDAEJONnetworks connected to backbone 4.11ms from Incheon, KR
176.36.210.196 AS39608 Lanet Network Ltd 0.46ms from Kyiv, UA
80.40.174.4 AS13285 TalkTalk Communications Limited 5.28ms from London, GB

Traceroute

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

$
traceroute -a -n -q1 -f3 -m15 202.202.239.243
traceroute to 202.202.239.243 (202.202.239.243): 15 hops max, 52 byte packets
3 [] 80.81.193.51 16.754 ms
4 [AS58453] 223.118.18.46 15.623 ms
5 *
6 *
7 [] 123.255.91.118 171.483 ms
8 *
9 *
10 *
11 [AS4538] 101.4.112.66 281.966 ms
12 [AS4538] 101.4.112.29 301.367 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in Frankfurt am Main, DE
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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