202.201.80.0/21

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 202.201.80.0/21

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 202.201.80.0/21

Range	ASN	Company	Num of IPs
202.201.80.0/24	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
202.201.0.0/20	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
202.201.176.0/21	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 no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
202.201.86.2	AS4538 China Education and Research Network Center	22.55ms from Chengdu, CN
202.201.81.12	AS4538 China Education and Research Network Center	31.87ms from Beijing, CN
202.201.82.223	AS4538 China Education and Research Network Center	29.75ms from Beijing, CN
202.201.85.108	AS4538 China Education and Research Network Center	29.53ms from Beijing, CN
202.201.87.49	AS4538 China Education and Research Network Center	22.34ms from Chengdu, CN
202.201.80.102	AS4538 China Education and Research Network Center	24.59ms from Chengdu, CN
202.201.83.141	AS4538 China Education and Research Network Center	29.65ms from Beijing, CN
202.201.84.143	AS4538 China Education and Research Network Center	29.17ms 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
41.109.162.117	AS36947 Telecom Algeria	12.52ms from Algiers, DZ
35.212.57.85	AS15169 Google LLC	0.11ms from Ashburn, US
102.46.78.213	AS8452 TE-AS	3.16ms from Cairo, EG
34.251.140.149	AS16509 Amazon.com, Inc.	0.18ms from Dublin, IE
220.188.127.69	AS4134 CHINANET-BACKBONE	7.99ms from Hangzhou, CN
66.29.133.21	AS22612 Namecheap, Inc.	9.48ms from Los Angeles, US
23.224.175.37	AS40065 CNSERVERS LLC	0.20ms from Los Angeles, US
103.158.245.213	AS133968 Logon Broadband	0.86ms from Mumbai, IN
173.61.135.245	AS701 Verizon Business	5.44ms from New York City, US
221.215.23.5	AS4837 CHINA UNICOM China169 Backbone	0.66ms from Qingdao, CN
115.68.96.5	AS38700 SMILESERV	1.43ms from Seoul, KR
211.223.53.197	AS4766 Korea Telecom	5.39ms from Seoul, KR
144.253.121.181	AS20115 Charter Communications LLC	5.06ms from St. Louis, US
219.160.175.5	AS4713 NTT Communications Corporation	4.43ms from Tokyo, JP
109.237.8.245	AS8774 OOO Kompaniya Etype	6.19ms from Warsaw, PL
31.187.241.245	AS50266 Odido Netherlands B.V.	5.38ms from Amsterdam, NL
98.241.154.101	AS7922 Comcast Cable Communications, LLC	11.56ms from Dallas, US
72.152.38.117	AS8075 Microsoft Corporation	0.28ms from Des Moines, US
134.147.156.197	AS29484 Ruhr-Universitaet Bochum	3.19ms from Duesseldorf, DE
45.175.28.181	AS268880 Maximus Net	18.33ms from Fortaleza, BR
3.168.231.37	AS16509 Amazon.com, Inc.	0.64ms from Istanbul, TR
64.114.109.37	AS852 TELUS Communications Inc.	0.37ms from Kelowna, CA
79.149.179.117	AS3352 TELEFONICA DE ESPANA S.A.U.	16.66ms from Madrid, ES
142.116.211.5	AS577 Bell Canada	1.99ms from Montreal, CA
195.209.104.101	AS60375 LLC Management Company "Industrial and Metallurgical Holding"	2.04ms from Moscow, RU

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.

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