219.231.192.0/20

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	219.224.0.0/13
Registry	APNIC
ID	CERNET-CN

WHOIS Details

inetnum:        219.230.0.0 - 219.231.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Nanjing 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:  2020-09-03T09:16:27Z
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 219.231.192.0/20

Range	ASN	Company	Num of IPs
219.224.0.0/13	AS4538	China Education and Research Network	524,288

Nearby Ranges

BGP prefixes that overlap with 219.231.0.0/16

Range	ASN	Company	Num of IPs
219.224.0.0/13	AS4538	China Education and Research Network	524,288
219.231.128.0/20	AS4538	China Education and Research Network	4,096
219.231.176.0/20	AS4538	China Education and Research Network	4,096
219.231.32.0/20	AS4538	China Education and Research Network	4,096
219.231.144.0/20	AS4538	China Education and Research Network	4,096
219.231.160.0/20	AS4538	China Education and Research Network	4,096
219.231.0.0/20	AS4538	China Education and Research Network	4,096
219.231.56.0/21	AS4538	China Education and Research Network	2,048
219.231.208.0/21	AS4538	China Education and Research Network	2,048
219.231.16.0/21	AS4538	China Education and Research Network	2,048
219.231.216.0/21	AS4538	China Education and Research Network	2,048
219.231.48.0/21	AS4538	China Education and Research Network	2,048
219.231.240.0/21	AS4538	China Education and Research Network	2,048
219.231.24.0/23	AS4538	China Education and Research Network	512
219.231.35.0/24	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

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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
172.208.61.36	AS8075 Microsoft Corporation	1.41ms from Ashburn, US
191.88.167.116	AS27831 Colombia Móvil	8.98ms from Bogota, CO
12.145.191.84	AS7018 AT&T Enterprises, LLC	3.65ms from Chicago, US
64.236.117.20	AS8075 Microsoft Corporation	0.27ms from Des Moines, US
88.195.14.180	AS1759 Telia Finland Oyj	6.76ms from Helsinki, FI
67.227.149.4	AS32244 Liquid Web, L.L.C	0.29ms from Lansing, US
186.52.227.132	AS6057 Administracion Nacional de Telecomunicaciones	1.78ms from Montevideo, UY
202.223.23.244	AS131943 Goto tv	9.60ms from Osaka, JP
134.195.241.132	AS398311 IT Auditors PR, Corp.	4.33ms from San Juan, PR
13.236.31.52	AS16509 Amazon.com, Inc.	0.10ms from Sydney, AU
89.88.34.196	AS5410 Bouygues Telecom SA	5.66ms from Marseille, FR
183.154.215.180	AS4134 CHINANET-BACKBONE	8.49ms from Nanchang, CN
47.123.149.68	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	3.56ms from Shanghai, CN
115.49.145.68	AS4837 CHINA UNICOM China169 Backbone	4.36ms from Zhengzhou, CN
103.238.146.100	AS4808 China Unicom Beijing Province Network	2.64ms from Beijing, CN
120.56.126.100	AS9829 National Internet Backbone	11.02ms from Chennai, IN
181.191.214.36	AS267450 oliveira & sousa comunicações Ltda	6.28ms from Curitiba, BR
104.43.194.116	AS8075 Microsoft Corporation	0.27ms from Des Moines, US
8.210.31.68	AS45102 Alibaba (US) Technology Co., Ltd.	0.52ms from Hong Kong, HK
113.254.143.132	AS9304 HGC Global Communications Limited	1.38ms from Hong Kong, HK
173.231.4.84	AS18450 WebNX, Inc.	0.65ms from Los Angeles, US
48.210.231.228	AS8075 Microsoft Corporation	0.14ms from Tokyo, JP
154.31.255.132	AS140224 Nebula Global LLC	0.63ms from Hong Kong, HK
216.189.208.84	AS23314 Summit Broadband	4.18ms from Miami, US
35.183.88.116	AS16509 Amazon.com, Inc.	0.15ms from Montreal, CA

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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