202.200.16.0/21

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 202.200.16.0/21

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

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
202.200.200.0/21	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 is 1 domain name hosted across 2 IP addresses 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

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

IP Address	ASN	Details
202.200.16.22	AS4538 China Education and Research Network Center	23.47ms 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
188.140.67.149	AS42863 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	7.91ms from Braga, PT
197.162.236.149	AS24863 Link Egypt (Link.NET)	13.16ms from Cairo, EG
202.191.171.165	AS9583 Sify Limited	1.22ms from Chennai, IN
120.147.153.69	AS1221 Telstra Limited	2.26ms from Melbourne, AU
49.28.196.181	AS4766 Korea Telecom	6.27ms from Seoul, KR
216.254.133.101	AS6407 Primus Telecommunications Canada Inc.	0.83ms from Toronto, CA
61.135.44.149	AS4808 China Unicom Beijing Province Network	3.78ms from Beijing, CN
104.238.3.149	AS212238 Datacamp Limited	0.39ms from Frankfurt am Main, DE
87.13.35.229	AS3269 Telecom Italia S.p.A.	8.41ms from Milan, IT
3.81.112.213	AS14618 Amazon.com, Inc.	0.58ms from Reston, US
123.207.216.133	AS45090 Shenzhen Tencent Computer Systems Company Limited	0.76ms from Shanghai, CN
91.184.14.85	AS51468 One.com A/S	0.58ms from Copenhagen, DK
35.202.109.213	AS396982 Google LLC	0.11ms from Council Bluffs, US
183.233.72.101	AS9808 China Mobile Communications Group Co., Ltd.	4.46ms from Guangzhou, CN
115.200.241.213	AS4134 CHINANET-BACKBONE	6.62ms from Hangzhou, CN
201.240.155.213	AS6147 Telefonica del Peru S.A.A.	1.07ms from Lima, PE
78.146.108.197	AS13285 TalkTalk Communications Limited	2.05ms from London, GB
20.108.104.117	AS8075 Microsoft Corporation	0.19ms from London, GB
125.154.134.101	AS4766 Korea Telecom	1.83ms from Seoul, KR
111.33.137.213	AS38019 tianjin Mobile Communication Company Limited	4.37ms from Beijing, CN
181.105.6.37	AS7303 Telecom Argentina S.A.	1.84ms from Buenos Aires, AR
154.176.130.69	AS8452 TE-AS	4.76ms from Cairo, EG
98.209.57.165	AS7922 Comcast Cable Communications, LLC	12.35ms from Chicago, US
54.217.226.117	AS16509 Amazon.com, Inc.	0.12ms from Dublin, IE
14.183.214.53	AS45899 VNPT Corp	2.11ms from Ho Chi Minh City, VN

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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