219.230.51.0/24

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	219.230.48.0/20
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 219.230.51.0/24

Range	ASN	Company	Num of IPs
219.230.48.0/20	AS4538	China Education and Research Network	4,096
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
219.230.144.0/20	AS4538	China Education and Research Network	4,096
219.230.144.0/20	AS24361	China Education and Research Network	4,096
219.230.16.0/20	AS4538	China Education and Research Network	4,096

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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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
139.146.60.24	AS214648 Wirelink LLC	0.26ms from Ashburn, US
73.106.207.88	AS7922 Comcast Cable Communications, LLC	1.45ms from Atlanta, US
190.65.61.168	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	3.04ms from Bogota, CO
172.78.14.120	AS5650 Frontier Communications of America, Inc.	9.50ms from Chicago, US
73.24.183.184	AS7922 Comcast Cable Communications, LLC	14.89ms from Los Angeles, US
37.203.101.8	AS9146 BIHNET Autonomus System	3.21ms from Novi Travnik, BA
126.87.22.184	AS17676 SoftBank Corp.	8.52ms from Osaka, JP
176.179.22.72	AS5410 Bouygues Telecom SA	1.93ms from Paris, FR
183.104.157.200	AS4766 Korea Telecom	7.31ms from Seoul, KR
97.70.231.56	AS33363 Charter Communications, Inc	8.68ms from Chicago, US
184.30.89.56	AS16625 Akamai Technologies, Inc.	0.51ms from Denver, US
87.144.45.168	AS3320 Deutsche Telekom AG	6.29ms from Frankfurt am Main, DE
81.79.253.56	AS5378 Vodafone Limited	9.78ms from Manchester, GB
211.177.55.136	AS9318 SK Broadband Co Ltd	0.87ms from Seoul, KR
103.1.187.8	AS133159 Mammoth Media Pty Ltd	0.40ms from Sydney, AU
122.28.44.40	AS4713 NTT Communications Corporation	1.37ms from Tokyo, JP
102.157.162.8	AS37705 TOPNET	2.10ms from Tunis, TN
79.134.253.8	AS6775 Andreas Fink trading as Fink Telecom Services GmbH	0.79ms from Zuerich, CH
86.128.29.56	AS2856 British Telecommunications PLC	8.89ms from London, GB
86.2.97.184	AS5089 Virgin Media Limited	10.75ms from London, GB
153.176.110.120	AS4713 NTT Communications Corporation	7.32ms from Tokyo, JP
58.91.95.40	AS4713 NTT Communications Corporation	4.16ms from Tokyo, JP
172.211.68.8	AS8075 Microsoft Corporation	1.24ms from Amsterdam, NL
42.180.184.8	AS4837 CHINA UNICOM China169 Backbone	4.13ms from Liaoyang, CN
185.164.53.232	AS59432 GINERNET S.L.	0.19ms from Madrid, ES

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.

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