219.244.16.0/20

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	219.244.0.0/14
Registry	APNIC
ID	CERNET-CN

WHOIS Details

inetnum:        219.244.0.0 - 219.247.255.255
netname:        CERNET-CN
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:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:45Z
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 219.244.16.0/20

Range	ASN	Company	Num of IPs
219.244.0.0/14	AS4538	China Education and Research Network	262,144

BGP prefixes that are contained by 219.244.16.0/20

Range	ASN	Company	Num of IPs
219.244.29.0/24	AS4538	China Education and Research Network	256
219.244.18.0/24	AS4538	China Education and Research Network	256
219.244.16.0/24	AS4538	China Education and Research Network	256
219.244.17.0/24	AS4538	China Education and Research Network	256
219.244.28.0/24	AS4538	China Education and Research Network	256

Nearby Ranges

BGP prefixes that overlap with 219.244.0.0/16

Range	ASN	Company	Num of IPs
219.244.0.0/14	AS4538	China Education and Research Network	262,144
219.244.160.0/19	AS4538	China Education and Research Network	8,192
219.244.192.0/19	AS4538	China Education and Research Network	8,192
219.244.224.0/19	AS4538	China Education and Research Network	8,192
219.244.160.0/19	AS24353	China Education and Research Network	8,192
219.244.112.0/20	AS4538	China Education and Research Network	4,096
219.244.0.0/20	AS4538	China Education and Research Network	4,096
219.244.80.0/20	AS4538	China Education and Research Network	4,096
219.244.96.0/20	AS4538	China Education and Research Network	4,096
219.244.48.0/20	AS4538	China Education and Research Network	4,096
219.244.128.0/20	AS4538	China Education and Research Network	4,096
219.244.40.0/21	AS4538	China Education and Research Network	2,048
219.244.32.0/21	AS4538	China Education and Research Network	2,048
219.244.64.0/21	AS4538	China Education and Research Network	2,048
219.244.222.0/24	AS4538	China Education and Research Network	256
219.244.0.0/24	AS4538	China Education and Research Network	256
219.244.221.0/24	AS4538	China Education and Research Network	256
219.244.212.0/24	AS4538	China Education and Research Network	256
219.244.29.0/24	AS4538	China Education and Research Network	256
219.244.2.0/24	AS4538	China Education and Research Network	256
219.244.18.0/24	AS4538	China Education and Research Network	256
219.244.223.0/24	AS4538	China Education and Research Network	256
219.244.28.0/24	AS4538	China Education and Research Network	256
219.244.16.0/24	AS4538	China Education and Research Network	256
219.244.208.0/24	AS4538	China Education and Research Network	256
219.244.17.0/24	AS4538	China Education and Research Network	256

Hosted domains

There is 1 domain name 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

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
219.244.20.19	AS4538 China Education and Research Network Center	14.53ms from Chengdu, CN
219.244.18.243	AS4538 China Education and Research Network Center	14.54ms from Chengdu, CN
219.244.23.105	AS4538 China Education and Research Network Center	14.65ms from Chengdu, CN
219.244.21.47	AS4538 China Education and Research Network Center	14.56ms from Chengdu, CN
219.244.16.118	AS4538 China Education and Research Network Center	14.71ms from Chengdu, CN
219.244.19.230	AS4538 China Education and Research Network Center	14.53ms from Chengdu, CN
219.244.22.8	AS4538 China Education and Research Network Center	14.63ms from Chengdu, CN
219.244.30.40	AS4538 China Education and Research Network Center	14.82ms from Chengdu, CN
219.244.26.172	AS4538 China Education and Research Network Center	15.92ms from Chengdu, 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
52.170.151.196	AS8075 Microsoft Corporation	0.44ms from Ashburn, US
117.13.191.68	AS4837 CHINA UNICOM China169 Backbone	5.61ms from Beijing, CN
20.54.124.196	AS8075 Microsoft Corporation	0.23ms from Dublin, IE
218.150.241.20	AS4766 Korea Telecom	3.90ms from Seoul, KR
14.190.126.84	AS45899 VNPT Corp	2.88ms from Hanoi, VN
176.178.155.100	AS5410 Bouygues Telecom SA	14.20ms from Paris, FR
179.156.155.244	AS28573 Claro NXT Telecomunicacoes Ltda	8.80ms from Sao Paulo, BR
142.160.174.228	AS7122 Bell Canada	16.19ms from Chicago, US
76.67.140.36	AS577 Bell Canada	3.77ms from Montreal, CA
82.137.176.4	AS3267 SCIENTIFIC RESEARCH INSTITUTE FOR SYSTEM ANALYSIS OF THE NATIONAL RESEARCH CENTRE "KURCHATOV INSTITUTE"	14.94ms from Moscow, RU
65.78.134.52	AS14051 Consolidated Communications, Inc.	4.16ms from San Jose, US
124.62.106.52	AS17858 LG POWERCOMM	2.08ms from Seoul, KR
150.246.3.180	AS2527 Sony Network Communications Inc.	2.03ms from Tokyo, JP
217.81.237.244	AS3320 Deutsche Telekom AG	9.74ms from Frankfurt am Main, DE
46.0.129.244	AS34533 JSC "ER-Telecom Holding"	0.43ms from Samara, RU
213.194.133.164	AS15704 XTRA TELECOM S.A.	2.21ms from Sevilla, ES
20.84.22.228	AS8075 Microsoft Corporation	0.61ms from Ashburn, US
109.166.155.4	AS8953 Orange Romania S.A.	0.56ms from Bucharest, RO
177.200.237.100	AS270033 Universidad Nacional Arturo Jauretche	1.79ms from Buenos Aires, AR
190.107.202.100	AS61925 MEGABYTE PROVEDOR DE INTERNET LTDA	3.51ms from Fortaleza, BR
14.90.101.84	AS4766 Korea Telecom	1.46ms from Seoul, KR
221.207.56.180	AS4837 CHINA UNICOM China169 Backbone	4.85ms from Lanzhou, CN
189.139.163.148	AS8151 UNINET	1.69ms from Mexico City, MX
210.75.18.36	AS134774 CHINANET Guangdong province Shenzhen MAN network	4.07ms from Shenzhen, CN
77.92.235.100	AS35805 JSC "Silknet"	1.12ms from Tbilisi, GE

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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