202.200.200.0/21

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	XAR-CERNET

WHOIS Details

inetnum:        202.200.0.0 - 202.201.255.255
netname:        XAR-CERNET
descr:          China Education and Research Network
descr:          Xi'an 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:  2021-03-24T13:04:50Z
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 202.200.200.0/21

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

BGP prefixes that are contained by 202.200.200.0/21

Range	ASN	Company	Num of IPs
202.200.200.0/24	AS4538	China Education and Research Network	256

Nearby Ranges

BGP prefixes that overlap with 202.200.0.0/16

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
202.200.80.0/20	AS4538	China Education and Research Network	4,096
202.200.32.0/20	AS4538	China Education and Research Network	4,096
202.200.144.0/20	AS4538	China Education and Research Network	4,096
202.200.96.0/20	AS4538	China Education and Research Network	4,096
202.200.112.0/20	AS4538	China Education and Research Network	4,096
202.200.224.0/20	AS4538	China Education and Research Network	4,096
202.200.64.0/20	AS4538	China Education and Research Network	4,096
202.200.176.0/20	AS4538	China Education and Research Network	4,096
202.200.48.0/20	AS4538	China Education and Research Network	4,096
202.200.208.0/20	AS4538	China Education and Research Network	4,096
202.200.240.0/20	AS4538	China Education and Research Network	4,096
202.200.168.0/21	AS4538	China Education and Research Network	2,048
202.200.16.0/21	AS4538	China Education and Research Network	2,048
202.200.0.0/21	AS4538	China Education and Research Network	2,048
202.200.8.0/22	AS4538	China Education and Research Network	1,024
202.200.12.0/22	AS4538	China Education and Research Network	1,024
202.200.140.0/23	AS4538	China Education and Research Network	512
202.200.64.0/24	AS4538	China Education and Research Network	256
202.200.31.0/24	AS4538	China Education and Research Network	256
202.200.41.0/24	AS4538	China Education and Research Network	256
202.200.29.0/24	AS4538	China Education and Research Network	256
202.200.28.0/24	AS4538	China Education and Research Network	256
202.200.200.0/24	AS4538	China Education and Research Network	256
202.200.81.0/24	AS4538	China Education and Research Network	256
202.200.32.0/24	AS4538	China Education and Research Network	256
202.200.37.0/24	AS4538	China Education and Research Network	256
202.200.96.0/24	AS4538	China Education and Research Network	256
202.200.42.0/24	AS4538	China Education and Research Network	256
202.200.35.0/24	AS4538	China Education and Research Network	256
202.200.36.0/24	AS4538	China Education and Research Network	256
202.200.94.0/24	AS4538	China Education and Research Network	256
202.200.80.0/24	AS4538	China Education and Research Network	256
202.200.43.0/24	AS4538	China Education and Research Network	256
202.200.48.0/24	AS4538	China Education and Research Network	256
202.200.255.0/24	AS4538	China Education and Research Network	256
202.200.112.0/24	AS4538	China Education and Research Network	256
202.200.38.0/24	AS4538	China Education and Research Network	256
202.200.34.0/24	AS4538	China Education and Research Network	256

Hosted domains

There are 2 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

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

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

IP Address	ASN	Details
202.200.206.103	AS4538 China Education and Research Network Center	22.36ms from Beijing, CN
202.200.200.36	AS4538 China Education and Research Network Center	21.19ms from Beijing, CN
202.200.205.119	AS4538 China Education and Research Network Center	25.17ms from Zhongwei, 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
91.72.159.101	AS15802 Emirates Integrated Telecommunications Company PJSC	1.63ms from Abu Dhabi, AE
178.3.214.213	AS3209 Vodafone GmbH	12.22ms from Hamburg, DE
69.124.123.197	AS6128 Cablevision Systems Corp.	9.41ms from New York City, US
126.142.159.21	AS17676 SoftBank Corp.	4.07ms from Osaka, JP
122.49.251.181	AS17698 COMMUNITY NETWORK CENTER INCORPORATED.	7.06ms from Osaka, JP
183.132.213.245	AS4134 CHINANET-BACKBONE	5.60ms from Shanghai, CN
20.97.213.213	AS8075 Microsoft Corporation	0.54ms from Boydton, US
203.219.229.197	AS7545 TPG Telecom Limited	0.69ms from Brisbane, AU
198.91.91.213	AS32475 Internap Holding LLC	0.93ms from Chicago, US
115.200.230.133	AS4134 CHINANET-BACKBONE	5.10ms from Hangzhou, CN
119.246.216.197	AS9269 Hong Kong Broadband Network Ltd.	0.70ms from Hong Kong, HK
95.31.73.229	AS42110 PJSC "Vimpelcom"	3.67ms from Krasnodar, RU
124.234.140.5	AS4134 CHINANET-BACKBONE	8.41ms from Liaoyang, CN
126.26.50.101	AS17676 SoftBank Corp.	10.85ms from Osaka, JP
99.57.23.229	AS7018 AT&T Enterprises, LLC	17.91ms from San Antonio, US
173.247.196.117	AS19165 Webpass Inc.	1.58ms from Santa Clara, US
59.22.111.101	AS4766 Korea Telecom	6.61ms from Seoul, KR
116.124.48.245	AS9318 SK Broadband Co Ltd	5.92ms from Seoul, KR
124.163.112.229	AS4837 CHINA UNICOM China169 Backbone	5.91ms from Taiyuan, CN
111.20.56.21	AS9808 China Mobile Communications Group Co., Ltd.	4.11ms from Xi'an, CN
68.64.82.69	AS46454 WCS	0.40ms from Ashburn, US
222.168.211.37	AS4134 CHINANET-BACKBONE	9.03ms from Dalian, CN
193.120.152.133	AS2110 BT Communications Ireland Limited	0.68ms from Dublin, IE
64.118.160.21	AS11051 Evocative, Inc.	0.26ms from Honolulu, US
111.101.218.133	AS2516 KDDI CORPORATION	1.42ms from Osaka, JP

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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