202.201.0.0/20

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 202.201.0.0/20

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 202.201.0.0/20

Range	ASN	Company	Num of IPs
202.201.0.0/24	AS4538	China Education and Research Network	256
202.201.14.0/24	AS4538	China Education and Research Network	256

Nearby Ranges

BGP prefixes that overlap with 202.201.0.0/16

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
202.201.192.0/18	AS4538	China Education and Research Network	16,384
202.201.160.0/19	AS4538	China Education and Research Network	8,192
202.201.128.0/19	AS4538	China Education and Research Network	8,192
202.201.48.0/20	AS4538	China Education and Research Network	4,096
202.201.64.0/20	AS4538	China Education and Research Network	4,096
202.201.32.0/20	AS4538	China Education and Research Network	4,096
202.201.240.0/20	AS4538	China Education and Research Network	4,096
202.201.112.0/20	AS4538	China Education and Research Network	4,096
202.201.16.0/20	AS4538	China Education and Research Network	4,096
202.201.88.0/21	AS4538	China Education and Research Network	2,048
202.201.152.0/21	AS4538	China Education and Research Network	2,048
202.201.80.0/21	AS4538	China Education and Research Network	2,048
202.201.176.0/21	AS4538	China Education and Research Network	2,048
202.201.216.0/22	AS4538	China Education and Research Network	1,024
202.201.96.0/22	AS4538	China Education and Research Network	1,024
202.201.108.0/22	AS4538	China Education and Research Network	1,024
202.201.106.0/23	AS4538	China Education and Research Network	512
202.201.14.0/24	AS4538	China Education and Research Network	256
202.201.33.0/24	AS4538	China Education and Research Network	256
202.201.255.0/24	AS4538	China Education and Research Network	256
202.201.80.0/24	AS4538	China Education and Research Network	256
202.201.32.0/24	AS4538	China Education and Research Network	256
202.201.166.0/24	AS4538	China Education and Research Network	256
202.201.64.0/24	AS4538	China Education and Research Network	256
202.201.152.0/24	AS4538	China Education and Research Network	256
202.201.128.0/24	AS4538	China Education and Research Network	256
202.201.220.0/24	AS4538	China Education and Research Network	256
202.201.160.0/24	AS4538	China Education and Research Network	256
202.201.18.0/24	AS4538	China Education and Research Network	256
202.201.253.0/24	AS4538	China Education and Research Network	256
202.201.96.0/24	AS4538	China Education and Research Network	256
202.201.53.0/24	AS4538	China Education and Research Network	256
202.201.44.0/24	AS4538	China Education and Research Network	256
202.201.144.0/24	AS4538	China Education and Research Network	256
202.201.43.0/24	AS4538	China Education and Research Network	256
202.201.0.0/24	AS4538	China Education and Research Network	256
202.201.48.0/24	AS4538	China Education and Research Network	256
202.201.68.0/24	AS4538	China Education and Research Network	256
202.201.154.0/24	AS4538	China Education and Research Network	256
202.201.106.0/24	AS4538	China Education and Research Network	256
202.201.201.0/24	AS4538	China Education and Research Network	256
202.201.65.0/24	AS4538	China Education and Research Network	256
202.201.69.0/24	AS4538	China Education and Research Network	256

Hosted domains

There are 8 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
202.201.0.77	lzu.edu.cn	4

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

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

IP Address	ASN	Details
202.201.13.20	AS4538 China Education and Research Network Center	28.67ms from Beijing, CN
202.201.0.99	AS4538 China Education and Research Network Center	28.01ms from Beijing, CN
202.201.2.195	AS4538 China Education and Research Network Center	22.15ms from Chengdu, CN
202.201.1.196	AS4538 China Education and Research Network Center	32.09ms from Zhongwei, CN
202.201.15.251	AS4538 China Education and Research Network Center	28.22ms 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
69.140.224.100	AS7922 Comcast Cable Communications, LLC	7.25ms from Ashburn, US
74.179.255.180	AS8075 Microsoft Corporation	0.37ms from Ashburn, US
136.53.178.36	AS16591 Google Fiber Inc.	5.76ms from Atlanta, US
195.37.72.4	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	6.76ms from Berlin, DE
170.83.55.100	AS264849 COOPERATIVA DE ELECTRICIDAD Y S. A. DE DIONISIA LTDA.	9.41ms from Buenos Aires, AR
105.243.224.116	AS36994 Vodacom	1.07ms from Cape Town, ZA
54.46.62.196	AS16509 Amazon.com, Inc.	0.63ms from Hong Kong, HK
13.248.131.116	AS16509 Amazon.com, Inc.	0.04ms from Lagos, NG
88.98.89.68	AS13037 Zen Internet Ltd	1.74ms from London, GB
201.80.27.180	AS28573 Claro NXT Telecomunicacoes Ltda	14.66ms from Rio de Janeiro, BR
187.115.251.100	AS18881 TELEFÔNICA BRASIL S.A	2.14ms from Sao Paulo, BR
210.115.32.196	AS17862 Kangwon National University	2.77ms from Seoul, KR
175.248.135.100	AS4766 Korea Telecom	6.36ms from Seoul, KR
137.50.19.132	AS786 Jisc Services Limited	11.42ms from Sheffield, GB
106.120.82.180	AS4847 China Networks Inter-Exchange	4.12ms from Tianjin, CN
118.158.172.180	AS2516 KDDI CORPORATION	2.51ms from Tokyo, JP
105.103.126.244	AS36947 Telecom Algeria	12.58ms from Algiers, DZ
101.29.82.36	AS4837 CHINA UNICOM China169 Backbone	10.01ms from Beijing, CN
77.51.87.148	AS12389 PJSC Rostelecom	1.32ms from Moscow, RU
46.39.244.84	AS29124 Iskratelecom JSC	0.78ms from Moscow, RU
14.46.213.180	AS4766 Korea Telecom	4.74ms from Seoul, KR
61.105.34.228	AS9318 SK Broadband Co Ltd	3.28ms from Seoul, KR
58.220.132.148	AS4134 CHINANET-BACKBONE	7.37ms from Shanghai, CN
58.104.62.244	AS4804 Microplex PTY LTD	18.27ms from Sydney, AU
115.241.181.36	AS55836 Reliance Jio Infocomm Limited	11.17ms from Delhi, IN

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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