219.230.144.0/20

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	219.230.128.0/19
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 219.230.144.0/20

Range	ASN	Company	Num of IPs
219.230.128.0/19	AS4538	China Education and Research Network	8,192
219.224.0.0/13	AS4538	China Education and Research Network	524,288

Nearby Ranges

BGP prefixes that overlap with 219.230.0.0/16

Range	ASN	Company	Num of IPs
219.224.0.0/13	AS4538	China Education and Research Network	524,288
219.230.64.0/18	AS4538	China Education and Research Network	16,384
219.230.192.0/18	AS4538	China Education and Research Network	16,384
219.230.128.0/19	AS4538	China Education and Research Network	8,192
219.230.160.0/19	AS4538	China Education and Research Network	8,192
219.230.48.0/20	AS4538	China Education and Research Network	4,096
219.230.32.0/20	AS4538	China Education and Research Network	4,096
219.230.176.0/20	AS4538	China Education and Research Network	4,096
219.230.16.0/20	AS4538	China Education and Research Network	4,096
219.230.51.0/24	AS4538	China Education and Research Network	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
219.230.158.249	AS4538 China Education and Research Network Center	12.74ms 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
195.233.169.196	AS12663 Vodafone Italia S.p.A.	4.23ms from Amsterdam, NL
18.238.246.36	AS16509 Amazon.com, Inc.	0.34ms from Amsterdam, NL
75.207.12.244	AS6167 Verizon Business	18.19ms from Atlanta, US
131.0.137.100	AS61467 DataWare Sistemas S.A.S.	5.53ms from Bogota, CO
71.75.245.212	AS11426 Charter Communications Inc	6.36ms from Charlotte, US
97.147.143.116	AS6167 Verizon Business	16.61ms from Chicago, US
109.56.171.132	AS44034 Hi3G Access AB	7.84ms from Copenhagen, DK
75.212.100.36	AS6167 Verizon Business	14.69ms from Dallas, US
217.251.97.228	AS3320 Deutsche Telekom AG	8.93ms from Frankfurt am Main, DE
77.232.40.244	AS212441 Cloud assets LLC	0.95ms from Moscow, RU
85.21.159.148	AS8402 PJSC "Vimpelcom"	1.99ms from Moscow, RU
113.16.142.132	AS4134 CHINANET-BACKBONE	1.88ms from Nanning, CN
125.135.4.84	AS4766 Korea Telecom	6.68ms from Seoul, KR
211.14.1.132	AS9607 BroadBand Tower, Inc.	0.52ms from Tokyo, JP
93.156.178.196	AS12946 R Cable y Telecable Telecomunicaciones, S.A.U.	9.45ms from A Coruna, ES
197.204.154.148	AS36947 Telecom Algeria	11.74ms from Algiers, DZ
71.115.201.36	AS701 Verizon Business	15.02ms from Ashburn, US
52.222.63.116	AS8987 Amazon Data Services Ireland Ltd	0.30ms from Boardman, US
99.7.28.164	AS7018 AT&T Enterprises, LLC	6.24ms from Chicago, US
192.208.13.180	AS152868 THX Corp.	0.31ms from Dallas, US
65.23.94.36	AS26554 US Signal Company, L.L.C.	4.23ms from Detroit, US
195.244.127.52	AS61157 PlusServer GmbH	5.80ms from Duesseldorf, DE
24.124.3.52	AS11232 Midcontinent Communications	1.35ms from Kansas City, US
47.153.55.228	AS5650 Frontier Communications of America, Inc.	1.92ms from Los Angeles, US
94.199.80.20	AS48382 Microdata Group SRL	2.97ms from Milan, IT

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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