202.205.158.0/23

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 202.205.158.0/23

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
202.205.144.0/22	AS4538	China Education and Research Network	1,024
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 13 domain names hosted across 7 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
202.205.158.85	cscse.edu.cn	6
202.205.158.90	chivast.com	1
202.205.158.14	tochinajob.com	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

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

IP Address	ASN	Details
202.205.159.29	AS4538 China Education and Research Network Center	1.94ms from Beijing, CN
202.205.158.56	AS4538 China Education and Research Network Center	2.00ms 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
52.48.125.23	AS16509 Amazon.com, Inc.	0.14ms from Dublin, IE
38.240.117.183	AS7250 Surry Telephone Membership Corporation	12.14ms from Durham, US
37.12.37.87	AS3352 TELEFONICA DE ESPANA S.A.U.	8.20ms from Madrid, ES
59.95.83.71	AS9829 National Internet Backbone	17.60ms from Mumbai, IN
218.2.190.183	AS4134 CHINANET-BACKBONE	1.16ms from Nanjing, CN
199.223.244.7	AS46379 Siena College	4.05ms from New York City, US
108.204.94.247	AS7018 AT&T Enterprises, LLC	3.86ms from San Jose, US
103.122.173.55	AS138291 Mall And Mall Digiworld Pvt Ltd	15.12ms from Delhi, IN
121.196.18.183	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	2.17ms from Hangzhou, CN
222.148.201.247	AS4713 NTT Communications Corporation	14.63ms from Osaka, JP
51.154.9.119	AS15796 Salt Mobile SA	0.91ms from Zuerich, CH
83.192.4.119	AS3215 Orange S.A.	6.19ms from Frankfurt am Main, DE
47.156.0.215	AS5650 Frontier Communications of America, Inc.	3.42ms from Los Angeles, US
4.239.82.23	AS8075 Microsoft Corporation	0.20ms from Quebec, CA
170.176.163.199	AS13335 Cloudflare, Inc.	0.11ms from Lima, PE
104.34.16.199	AS20001 Charter Communications Inc	5.90ms from Los Angeles, US
223.134.203.23	AS2527 Sony Network Communications Inc.	10.09ms from Osaka, JP
211.214.61.87	AS9318 SK Broadband Co Ltd	2.07ms from Seoul, KR
73.184.185.231	AS7922 Comcast Cable Communications, LLC	5.17ms from Atlanta, US
175.22.189.7	AS4837 CHINA UNICOM China169 Backbone	10.79ms from Liaoyang, CN
62.175.182.199	AS6739 VODAFONE ONO, S.A.	10.12ms from Madrid, ES
203.173.40.167	AS4739 Internode Pty Ltd	1.50ms from Melbourne, AU
60.242.40.71	AS7545 TPG Telecom Limited	1.76ms from Melbourne, AU
154.93.104.247	AS136907 HUAWEI CLOUDS	2.27ms from Hong Kong, HK
50.123.4.231	AS5650 Frontier Communications of America, Inc.	10.42ms from Los Angeles, US

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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