219.231.0.0/20

AS4538 · China Education and Research Network Center

Need more data or want to access it via API or data downloads? Sign up to get free access

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 219.231.0.0/20

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
219.231.192.0/20	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
219.231.56.0/21	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
219.231.0.101	xn--8mr094al6cjwphvi.top	1

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

Read more

Pingable IPs

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

IP Address	ASN	Details
219.231.15.211	AS4538 China Education and Research Network Center	11.90ms from Shanghai, CN
219.231.8.39	AS4538 China Education and Research Network Center	11.96ms from Shanghai, CN
219.231.0.3	AS4538 China Education and Research Network Center	10.75ms from Shanghai, CN
219.231.7.241	AS4538 China Education and Research Network Center	11.29ms from Shanghai, 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
60.25.186.164	AS4837 CHINA UNICOM China169 Backbone	5.75ms from Beijing, CN
69.230.70.36	AS7018 AT&T Enterprises, LLC	2.88ms from Chicago, US
217.253.88.132	AS3320 Deutsche Telekom AG	4.54ms from Duesseldorf, DE
5.80.196.4	AS2856 British Telecommunications PLC	6.29ms from London, GB
159.203.226.132	AS14061 DigitalOcean, LLC	0.26ms from San Jose, US
97.80.219.244	AS20115 Charter Communications LLC	19.94ms from Atlanta, US
64.57.241.68	AS20141 Quality Technology Services, LLC	1.39ms from Atlanta, US
51.19.218.132	AS5607 Sky UK Limited	6.04ms from London, GB
150.143.254.68	AS6871 Plusnet	6.20ms from London, GB
31.194.122.228	AS3269 Telecom Italia S.p.A.	0.41ms from Milan, IT
67.87.54.212	AS6128 Cablevision Systems Corp.	8.90ms from Secaucus, US
39.125.61.100	AS9318 SK Broadband Co Ltd	3.23ms from Seoul, KR
223.33.28.116	AS9644 SK Telecom	3.14ms from Seoul, KR
93.82.133.52	AS8447 A1 Telekom Austria AG	5.41ms from Vienna, AT
193.196.44.132	AS34878 Karlsruhe Institute of Technology	3.28ms from Frankfurt am Main, DE
103.12.76.4	AS140825 Thien Quang Digital technology joint stock company	0.26ms from Hanoi, VN
47.120.22.36	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	0.44ms from Heyuan, CN
94.131.217.68	AS209155 Onehostplanet s.r.o.	0.08ms from Kyiv, UA
13.202.27.148	AS16509 Amazon.com, Inc.	0.14ms from Mumbai, IN
52.206.130.212	AS14618 Amazon.com, Inc.	0.20ms from Reston, US
187.225.55.68	AS8151 UNINET	12.26ms from Santiago de Queretaro, MX
27.235.52.36	AS4766 Korea Telecom	1.26ms from Seoul, KR
112.176.182.20	AS4766 Korea Telecom	5.15ms from Seoul, KR
59.128.96.212	AS2516 KDDI CORPORATION	0.88ms from Tokyo, JP
223.134.188.20	AS2527 Sony Network Communications Inc.	6.20ms from Tokyo, JP

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales