219.231.24.0/23

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 219.231.24.0/23

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
219.231.216.0/21	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
219.231.35.0/24	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

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

IP Address	ASN	Details
219.231.24.5	AS4538 China Education and Research Network Center	15.41ms from Shanghai, CN
219.231.25.130	AS4538 China Education and Research Network Center	14.71ms 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
60.246.236.55	AS4609 Companhia de Telecomunicacoes de Macau SARL	2.62ms from Hong Kong, HK
121.179.4.183	AS4766 Korea Telecom	4.89ms from Seoul, KR
38.244.157.103	AS9009 M247 Europe SRL	0.40ms from Budapest, HU
187.136.167.247	AS8151 UNINET	17.98ms from Dallas, US
66.170.109.7	AS396982 Google LLC	0.08ms from Melbourne, AU
77.223.59.23	AS13170 Kaisanet Oy	3.15ms from Oulu, FI
174.18.39.71	AS209 CenturyLink Communications, LLC	3.61ms from Phoenix, US
44.208.141.199	AS14618 Amazon.com, Inc.	0.23ms from Reston, US
222.59.182.119	AS56046 China Mobile communications corporation	4.30ms from Suzhou, CN
65.189.38.215	AS10796 Charter Communications Inc	9.74ms from Columbus, US
157.231.170.39	AS31655 Gamma Telecom Holdings Ltd	0.95ms from London, GB
15.152.217.23	AS16509 Amazon.com, Inc.	0.67ms from Osaka, JP
102.158.252.55	AS37705 TOPNET	2.13ms from Tunis, TN
76.198.120.23	AS7018 AT&T Enterprises, LLC	2.17ms from Los Angeles, US
201.111.1.119	AS8151 UNINET	11.94ms from Santiago de Queretaro, MX
193.186.206.167	AS197697 Dariusz Klimczuk trading as DERKOM Sp. J.	4.52ms from Warsaw, PL
186.17.152.87	AS23201 Telecel S.A.	1.91ms from Asuncion, PY
80.93.90.119	AS21409 Ikoula Net SAS	0.08ms from Reims, FR
98.5.1.183	AS11351 Charter Communications Inc	17.74ms from Chicago, US
52.209.207.39	AS16509 Amazon.com, Inc.	0.11ms from Dublin, IE
149.71.105.167	AS199335 Talk Straight Ltd.	0.19ms from London, GB
90.222.65.215	AS5607 Sky UK Limited	5.71ms from London, GB
90.214.4.119	AS5607 Sky UK Limited	3.71ms from London, GB
175.226.122.119	AS4766 Korea Telecom	2.40ms from Seoul, KR
176.106.33.7	AS198397 KRUCZNET Sp. z o.o.	5.82ms from Warsaw, PL

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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