219.231.216.0/21

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 219.231.216.0/21

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
219.231.0.0/20	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
219.231.48.0/21	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

Read more

Pingable IPs

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

IP Address	ASN	Details
219.231.221.201	AS4538 China Education and Research Network Center	9.79ms from Beijing, CN
219.231.222.77	AS4538 China Education and Research Network Center	10.72ms from Beijing, CN
219.231.219.108	AS4538 China Education and Research Network Center	9.41ms from Beijing, CN
219.231.223.93	AS4538 China Education and Research Network Center	9.79ms 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
68.53.40.101	AS7922 Comcast Cable Communications, LLC	10.26ms from Atlanta, US
79.223.116.149	AS3320 Deutsche Telekom AG	3.38ms from Duesseldorf, DE
148.253.140.21	AS31727 Node4 Limited	1.99ms from Manchester, GB
185.200.126.21	AS8529 Zain Omantel International FZ-LLC	0.26ms from Muscat, OM
67.181.191.53	AS7922 Comcast Cable Communications, LLC	4.84ms from San Jose, US
93.67.9.133	AS30722 Vodafone Italia S.p.A.	15.99ms from Arezzo, IT
190.250.75.197	AS13489 UNE EPM TELECOMUNICACIONES S.A.	11.19ms from Bogota, CO
108.136.243.5	AS16509 Amazon.com, Inc.	0.12ms from Jakarta, ID
103.31.232.181	AS55701 PT. Usaha Adisanggoro	0.84ms from Jakarta, ID
119.182.149.37	AS4837 CHINA UNICOM China169 Backbone	4.91ms from Qingdao, CN
115.188.93.21	AS4771 Spark New Zealand Trading Ltd.	1.45ms from Auckland, NZ
181.99.235.117	AS7303 Telecom Argentina S.A.	16.04ms from Buenos Aires, AR
89.142.62.229	AS5603 Telekom Slovenije, d.d.	0.79ms from Ljubljana, SI
195.223.10.229	AS3269 Telecom Italia S.p.A.	17.94ms from Milan, IT
80.19.203.5	AS3269 Telecom Italia S.p.A.	16.49ms from Palermo, IT
54.221.83.69	AS14618 Amazon.com, Inc.	0.23ms from Reston, US
43.212.236.101	AS16509 Amazon.com, Inc.	0.48ms from Taipei, TW
93.141.245.53	AS5391 Hrvatski Telekom d.d.	15.35ms from Belgrade, RS
35.232.68.117	AS396982 Google LLC	0.13ms from Council Bluffs, US
20.93.59.165	AS8075 Microsoft Corporation	0.22ms from Dublin, IE
62.144.194.197	AS12312 ecotel communication ag	7.81ms from Frankfurt am Main, DE
88.244.229.21	AS9121 Turk Telekomunikasyon Anonim Sirketi	2.78ms from Istanbul, TR
213.79.117.133	AS8732 JSC Comcor	0.59ms from Moscow, RU
220.111.243.213	AS4713 NTT Communications Corporation	3.90ms from Osaka, JP
49.175.86.37	AS17858 LG POWERCOMM	2.33ms from Seoul, KR

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