202.205.109.0/24

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Registry APNIC
ID 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 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:  2025-09-04T00:59:41Z
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

Hosted domains

There are 24 domain names hosted across 15 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
202.205.109.203 www.edu.cn 6
202.205.109.211 www.edu.cn 5
202.205.109.225 changjiang.edu.cn 4
202.205.109.153 acabridge.edu.cn 2
202.205.109.69 class.cn 1
202.205.109.100 eol.edu.cn 1
202.205.109.2 eol.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

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

IP Address ASN Details
202.205.109.254 AS4538 China Education and Research Network Center 1.75ms 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
217.217.90.216 AS20326 TeraSwitch Networks Inc. 0.13ms from Amsterdam, NL
193.74.109.184 AS5432 Proximus NV 5.13ms from Amsterdam, NL
173.53.72.232 AS701 Verizon Business 4.66ms from Ashburn, US
159.224.168.24 AS13188 CONTENT DELIVERY NETWORK LTD 0.80ms from Kyiv, UA
79.13.71.232 AS3269 Telecom Italia S.p.A. 8.37ms from Milan, IT
190.133.129.88 AS6057 Administracion Nacional de Telecomunicaciones 1.72ms from Montevideo, UY
115.86.17.152 AS17598 LG HelloVision Corp. 3.63ms from Seoul, KR
221.158.238.88 AS4766 Korea Telecom 5.08ms from Seoul, KR
116.125.5.104 AS9318 SK Broadband Co Ltd 3.64ms from Seoul, KR
218.216.123.88 AS7516 TOHKnet Co.,Inc. 5.39ms from Tokyo, JP
108.206.80.216 AS7018 AT&T Enterprises, LLC 2.89ms from Atlanta, US
120.7.217.216 AS4837 CHINA UNICOM China169 Backbone 4.64ms from Beijing, CN
44.253.126.72 AS16509 Amazon.com, Inc. 0.19ms from Boardman, US
87.242.11.120 AS35311 PR-TELECOM ZRt. 7.62ms from Budapest, HU
103.120.167.120 AS134562 DISCOVERY INTERNET 1.07ms from Dhaka, BD
84.67.91.88 AS5378 Vodafone Limited 4.32ms from London, GB
95.142.190.168 AS30848 UNIDATA S.p.A. 1.59ms from Milan, IT
34.207.35.184 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
179.217.29.40 AS28573 Claro NXT Telecomunicacoes Ltda 11.16ms from Rio de Janeiro, BR
2.70.150.88 AS44034 Hi3G Access AB 10.49ms from Stockholm, SE
60.74.225.216 AS17676 SoftBank Corp. 18.38ms from Tokyo, JP
80.122.30.88 AS8447 A1 Telekom Austria AG 4.37ms from Vienna, AT
176.121.80.88 AS59444 Andrzej Szreter AMSNET 5.64ms from Warsaw, PL
4.255.38.168 AS8075 Microsoft Corporation 0.36ms from Ashburn, US
172.191.241.216 AS8075 Microsoft Corporation 0.64ms from Ashburn, US

Traceroute

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

$
traceroute -a -n -q1 -f2 202.205.109.252
traceroute to 202.205.109.252 (202.205.109.252): 64 hops max, 52 byte packets
2 [AS1299] 62.115.200.162 12.013 ms
3 [AS1299] 62.115.136.122 15.987 ms
4 [AS1299] 62.115.137.202 28.037 ms
5 [AS1299] 62.115.124.59 41.263 ms
6 [AS1299] 62.115.139.204 186.636 ms
7 *
8 [AS1299] 80.239.130.173 211.377 ms
9 [AS4538] 101.4.114.181 250.4 ms
10 *
11 [AS4538] 101.4.117.81 242.821 ms
12 [AS4538] 219.224.102.229 249.174 ms
13 *
14 [AS4538] 202.205.109.252 247.179 ms
Measurement taken from IPinfo ProbeNet in Sofia, BG
On

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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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