202.203.0.0/16

AS4538  ·  China Education and Research Network Center

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

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 202.0.0.0/8

Range ASN Company Num of IPs
202.192.0.0/13 AS4538 China Education and Research Network 524,288
202.28.0.0/15 AS133042 Office of Info.Tech. Admin. for Educational Development 131,072
202.112.0.0/15 AS4538 China Education and Research Network 131,072
202.28.0.0/15 AS17823 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS132514 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS37992 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS55488 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS137850 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS131221 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS132493 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS149503 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS149800 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS140075 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS134064 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS137241 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS17827 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS23687 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS9533 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS55545 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS131257 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS38265 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS135528 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS150410 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS131246 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS4621 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS45847 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS10227 Office of Info.Tech. Admin. for Educational Development 131,072
202.184.0.0/15 AS9930 TT DOTCOM SDN BHD 131,072
202.186.0.0/15 AS9930 TT DOTCOM SDN BHD 131,072
202.28.0.0/15 AS9464 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS24328 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS56277 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS137198 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS138003 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS136624 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS132879 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS139753 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS135616 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS9551 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS141714 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS4762 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS24475 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS24344 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS150107 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS137394 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS38589 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS147312 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS133919 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS132250 Office of Info.Tech. Admin. for Educational Development 131,072
202.28.0.0/15 AS9475 Office of Info.Tech. Admin. for Educational Development 131,072

Hosted domains

There are 7 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
202.203.168.50 kustrmre.com 2
202.203.225.46 ynnu.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

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

IP Address ASN Details
202.203.195.83 AS4538 China Education and Research Network Center 17.50ms from Chengdu, CN
202.203.204.254 AS4538 China Education and Research Network Center 69.78ms from Zhongwei, CN
202.203.200.144 AS4538 China Education and Research Network Center 16.96ms from Chengdu, CN
202.203.212.3 AS4538 China Education and Research Network Center 50.89ms from Chengdu, CN
202.203.170.2 AS4538 China Education and Research Network Center 52.40ms from Chengdu, CN
202.203.179.192 AS4538 China Education and Research Network Center 19.03ms from Chengdu, CN
202.203.134.128 AS4538 China Education and Research Network Center 50.31ms from Chengdu, CN
202.203.222.253 AS4538 China Education and Research Network Center 51.90ms from Chengdu, CN
202.203.184.76 AS4538 China Education and Research Network Center 18.97ms from Chengdu, CN
202.203.199.25 AS4538 China Education and Research Network Center 50.17ms from Chengdu, CN
202.203.158.10 AS4538 China Education and Research Network Center 21.64ms from Chengdu, CN
202.203.133.10 AS4538 China Education and Research Network Center 16.67ms from Chengdu, CN
202.203.162.131 AS4538 China Education and Research Network Center 53.62ms from Chengdu, CN
202.203.66.4 AS4538 China Education and Research Network Center 18.13ms from Chengdu, CN
202.203.159.147 AS4538 China Education and Research Network Center 18.58ms from Chengdu, CN
202.203.85.19 AS4538 China Education and Research Network Center 31.08ms from Chengdu, CN
202.203.132.230 AS4538 China Education and Research Network Center 52.26ms from Zhongwei, CN
202.203.15.2 AS4538 China Education and Research Network Center 54.16ms from Chengdu, CN
202.203.187.13 AS4538 China Education and Research Network Center 19.14ms from Chengdu, CN
202.203.192.34 AS4538 China Education and Research Network Center 49.83ms from Chengdu, CN
202.203.150.239 AS4538 China Education and Research Network Center 21.53ms from Chengdu, CN
202.203.17.94 AS4538 China Education and Research Network Center 25.83ms from Chengdu, CN
202.203.40.227 AS4538 China Education and Research Network Center 18.69ms from Chengdu, CN
202.203.163.230 AS4538 China Education and Research Network Center 53.79ms from Zhongwei, CN
202.203.130.229 AS4538 China Education and Research Network Center 17.18ms 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
83.247.59.32 AS12414 Solcon Internetdiensten B.V. 5.11ms from Amsterdam, NL
86.126.13.16 AS8708 DIGI ROMANIA S.A. 0.89ms from Bucharest, RO
14.107.70.160 AS4134 CHINANET-BACKBONE 4.16ms from Chongqing, CN
177.135.65.224 AS18881 TELEFÔNICA BRASIL S.A 5.82ms from Curitiba, BR
166.88.181.96 AS3257 GTT Communications Inc. 0.28ms from Dallas, US
76.86.105.64 AS20001 Charter Communications Inc 5.07ms from Los Angeles, US
98.225.112.16 AS7922 Comcast Cable Communications, LLC 15.83ms from Los Angeles, US
122.151.59.64 AS9443 Vocus Retail 1.43ms from Melbourne, AU
212.171.19.144 AS3269 Telecom Italia S.p.A. 4.26ms from Milan, IT
118.110.3.240 AS2518 BIGLOBE Inc. 4.48ms from Osaka, JP
92.222.228.224 AS16276 OVH SAS 0.07ms from Roubaix, FR
119.214.31.112 AS4766 Korea Telecom 1.46ms from Seoul, KR
48.218.149.96 AS8075 Microsoft Corporation 0.16ms from Tokyo, JP
197.7.4.128 AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom) 10.97ms from Tunis, TN
156.58.252.160 AS199083 Mediaprint Zeitungs- und Zeitschrifftenverlag Ges.m.b.H. & Co KG 1.13ms from Vienna, AT
154.94.38.80 AS20326 TeraSwitch Networks Inc. 0.21ms from Amsterdam, NL
69.251.211.0 AS7922 Comcast Cable Communications, LLC 6.71ms from Ashburn, US
75.211.47.128 AS6167 Verizon Business 14.87ms from Chicago, US
40.80.234.32 AS8075 Microsoft Corporation 0.25ms from Dongnae, KR
91.132.93.240 AS9009 M247 Europe SRL 0.16ms from Dubai, AE
92.199.140.80 AS20676 Plusnet GmbH 4.35ms from Frankfurt am Main, DE
136.37.98.160 AS16591 Google Fiber Inc. 0.67ms from Kansas City, US
193.193.196.144 AS3254 Lucky Net Ltd 0.38ms from Kyiv, UA
92.40.63.16 AS206067 Hutchison 3G UK Limited 12.66ms from London, GB
82.20.113.96 AS5089 Virgin Media Limited 9.47ms 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 -f6 -m13 202.203.8.232
traceroute to 202.203.8.232 (202.203.8.232): 13 hops max, 52 byte packets
6 [] 27.111.228.228 28.408 ms
7 *
8 *
9 *
10 [AS4538] 101.4.114.181 133.754 ms
11 *
12 *
13 *
Measurement taken from IPinfo ProbeNet in Bangkok, TH
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.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs