202.205.112.0/24

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	202.205.112.0/20
Registry	APNIC
ID	BJR-CERNET

WHOIS Details

inetnum:        202.204.0.0 - 202.207.255.255
netname:        BJR-CERNET
descr:          China Education and Research Network
descr:          Beijing Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:26Z
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 202.205.112.0/24

Range	ASN	Company	Num of IPs
202.205.112.0/20	AS4538	China Education and Research Network	4,096
202.200.0.0/13	AS4538	China Education and Research Network	524,288
202.192.0.0/12	AS4538	China Education and Research Network	1,048,576

Nearby Ranges

BGP prefixes that overlap with 202.205.0.0/16

Range	ASN	Company	Num of IPs
202.192.0.0/12	AS4538	China Education and Research Network	1,048,576
202.200.0.0/13	AS4538	China Education and Research Network	524,288
202.205.160.0/20	AS4538	China Education and Research Network	4,096
202.205.64.0/20	AS4538	China Education and Research Network	4,096
202.205.80.0/20	AS4538	China Education and Research Network	4,096
202.205.16.0/20	AS24348	China Education and Research Network	4,096
202.205.176.0/20	AS4538	China Education and Research Network	4,096
202.205.16.0/20	AS4538	China Education and Research Network	4,096
202.205.112.0/20	AS4538	China Education and Research Network	4,096
202.205.208.0/20	AS4538	China Education and Research Network	4,096
202.205.96.0/21	AS4538	China Education and Research Network	2,048
202.205.104.0/22	AS4538	China Education and Research Network	1,024
202.205.224.0/22	AS4538	China Education and Research Network	1,024
202.205.144.0/22	AS4538	China Education and Research Network	1,024
202.205.158.0/23	AS4538	China Education and Research Network	512
202.205.252.0/23	AS4538	China Education and Research Network	512
202.205.117.0/24	AS4538	China Education and Research Network	256
202.205.149.0/24	AS4538	China Education and Research Network	256
202.205.131.0/24	AS4538	China Education and Research Network	256
202.205.151.0/24	AS4538	China Education and Research Network	256
202.205.148.0/24	AS4538	China Education and Research Network	256
202.205.232.0/24	AS4538	China Education and Research Network	256
202.205.127.0/24	AS4538	China Education and Research Network	256
202.205.108.0/24	AS4538	China Education and Research Network	256
202.205.130.0/24	AS4538	China Education and Research Network	256
202.205.68.0/24	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

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

IP Address	ASN	Details
202.205.112.88	AS4538 China Education and Research Network Center	2.02ms 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
93.70.166.104	AS30722 Vodafone Italia S.p.A.	6.54ms from Arezzo, IT
101.6.192.24	AS4538 China Education and Research Network Center	2.63ms from Beijing, CN
160.45.29.104	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	1.25ms from Berlin, DE
69.141.166.232	AS7922 Comcast Cable Communications, LLC	4.91ms from New York City, US
72.188.3.120	AS33363 Charter Communications, Inc	8.53ms from Orlando, US
83.202.15.168	AS3215 Orange S.A.	1.68ms from Paris, FR
192.182.188.56	AS5650 Frontier Communications of America, Inc.	7.45ms from Ashburn, US
14.185.179.200	AS45899 VNPT Corp	4.12ms from Da Nang, VN
172.250.218.248	AS20001 Charter Communications Inc	5.91ms from Los Angeles, US
182.224.30.152	AS17858 LG POWERCOMM	2.18ms from Seoul, KR
78.89.139.72	AS29357 NATIONAL MOBILE TELECOMMUNICATIONS COMPANY K.S.C.P.	1.44ms from Kuwait City, KW
190.132.153.248	AS6057 Administracion Nacional de Telecomunicaciones	15.66ms from Montevideo, UY
154.92.2.120	AS149641 XCLOUD TECHNOLOGY LIMITED	1.30ms from Hong Kong, HK
70.181.211.56	AS22773 Cox Communications Inc.	8.21ms from Los Angeles, US
126.28.66.88	AS17676 SoftBank Corp.	4.42ms from Osaka, JP
219.166.46.152	AS4713 NTT Communications Corporation	3.77ms from Tokyo, JP
8.147.155.8	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	0.64ms from Beijing, CN
76.197.203.232	AS7018 AT&T Enterprises, LLC	2.21ms from Dallas, US
107.201.220.40	AS7018 AT&T Enterprises, LLC	10.31ms from Dallas, US
31.117.38.72	AS2856 British Telecommunications PLC	6.07ms from London, GB
34.8.162.104	AS396982 Google LLC	0.07ms from Melbourne, AU
46.151.208.88	AS51975 NASHIRNET ASN	2.67ms from Riyadh, SA
98.158.114.168	AS22781 Strong Technology, LLC.	0.59ms from San Jose, US
169.62.111.56	AS36351 IBM Cloud	0.61ms from San Jose, US
218.152.182.56	AS4766 Korea Telecom	1.60ms 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.

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