202.205.144.0/22

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	202.200.0.0/13
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 2025-01-22
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-01-22T13:47:43Z
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 2025-01-22
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-01-22T16:25:45Z
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

Overlapping Ranges

BGP prefixes that contain 202.205.144.0/22

Range	ASN	Company	Num of IPs
202.200.0.0/13	AS4538	China Education and Research Network	524,288
202.192.0.0/12	AS4538	China Education and Research Network	1,048,576

Nearby Ranges

BGP prefixes that overlap with 202.205.0.0/16

Range	ASN	Company	Num of IPs
202.192.0.0/12	AS4538	China Education and Research Network	1,048,576
202.200.0.0/13	AS4538	China Education and Research Network	524,288
202.205.160.0/20	AS4538	China Education and Research Network	4,096
202.205.64.0/20	AS4538	China Education and Research Network	4,096
202.205.80.0/20	AS4538	China Education and Research Network	4,096
202.205.16.0/20	AS24348	China Education and Research Network	4,096
202.205.176.0/20	AS4538	China Education and Research Network	4,096
202.205.16.0/20	AS4538	China Education and Research Network	4,096
202.205.112.0/20	AS4538	China Education and Research Network	4,096
202.205.208.0/20	AS4538	China Education and Research Network	4,096
202.205.96.0/21	AS4538	China Education and Research Network	2,048
202.205.104.0/22	AS4538	China Education and Research Network	1,024
202.205.224.0/22	AS4538	China Education and Research Network	1,024
202.205.158.0/23	AS4538	China Education and Research Network	512
202.205.252.0/23	AS4538	China Education and Research Network	512
202.205.117.0/24	AS4538	China Education and Research Network	256
202.205.149.0/24	AS4538	China Education and Research Network	256
202.205.131.0/24	AS4538	China Education and Research Network	256
202.205.151.0/24	AS4538	China Education and Research Network	256
202.205.148.0/24	AS4538	China Education and Research Network	256
202.205.232.0/24	AS4538	China Education and Research Network	256
202.205.127.0/24	AS4538	China Education and Research Network	256
202.205.108.0/24	AS4538	China Education and Research Network	256
202.205.112.0/24	AS4538	China Education and Research Network	256
202.205.130.0/24	AS4538	China Education and Research Network	256
202.205.68.0/24	AS4538	China Education and Research Network	256

Hosted domains

There are 3 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
202.205.144.68	hep.edu.cn	2
202.205.145.175	hvett.com.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

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Pingable IPs

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

IP Address	ASN	Details
202.205.145.163	AS4538 China Education and Research Network Center	3.79ms from Beijing, CN
202.205.144.68	AS4538 China Education and Research Network Center	6.25ms from Beijing, CN
202.205.146.240	AS4538 China Education and Research Network Center	2.58ms 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
183.148.76.86	AS4134 CHINANET-BACKBONE	10.07ms from Hangzhou, CN
137.75.100.6	AS3477 National Oceanic and Atmospheric Administration	3.52ms from Reston, US
89.171.41.22	AS12741 Netia SA	0.36ms from Warsaw, PL
77.24.237.230	AS3209 Vodafone GmbH	2.45ms from Berlin, DE
52.25.217.214	AS16509 Amazon.com, Inc.	0.13ms from Boardman, US
186.183.172.102	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	18.27ms from Bogota, CO
192.140.112.214	AS266243 DFL Servicos de Telecomunicacoes LTDA - ME	17.31ms from Fortaleza, BR
125.147.209.102	AS4766 Korea Telecom	1.45ms from Seoul, KR
1.106.177.54	AS4766 Korea Telecom	2.29ms from Seoul, KR
95.171.106.86	AS35378 Sat Film Sp. z o.o.	8.81ms from Warsaw, PL
195.202.210.246	AS6730 Sunrise GmbH	6.42ms from Zuerich, CH
145.145.1.102	AS1103 SURF B.V.	0.20ms from Amsterdam, NL
86.174.99.214	AS2856 British Telecommunications PLC	5.55ms from London, GB
81.202.143.22	AS6739 VODAFONE ONO, S.A.	14.10ms from Madrid, ES
213.41.177.102	AS13193 KEYYO SA	1.73ms from Paris, FR
219.241.214.134	AS9318 SK Broadband Co Ltd	5.98ms from Seoul, KR
132.220.152.54	AS8075 Microsoft Corporation	0.21ms from Amsterdam, NL
151.233.155.214	AS58224 Iran Telecommunication Company PJS	16.08ms from Az Za`ayin, QA
27.72.23.86	AS7552 Viettel Group	1.89ms from Hanoi, VN
223.231.239.230	AS45609 Bharti Airtel Ltd. AS for GPRS Service	7.10ms from Kolkata, IN
109.158.149.22	AS2856 British Telecommunications PLC	5.41ms from London, GB
175.248.14.86	AS4766 Korea Telecom	5.73ms from Seoul, KR
86.148.193.86	AS2856 British Telecommunications PLC	3.36ms from London, GB
31.211.185.246	AS198454 SISTEC TELECOM S.L.	8.63ms from Madrid, ES
88.2.247.86	AS3352 TELEFONICA DE ESPANA S.A.U.	2.08ms from Madrid, ES

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.

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