202.127.233.0/24

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	202.127.232.0/21
Registry	APNIC
ID	BJR-CERNET

WHOIS Details

inetnum:        202.127.224.0 - 202.127.239.255
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
remarks:        old HIT-CN returned on 19951110
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:28Z
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 202.127.233.0/24

Range	ASN	Company	Num of IPs
202.127.232.0/21	AS4538	China Education and Research Network	2,048
202.127.224.0/19	AS4538	China Education and Research Network	8,192

Nearby Ranges

BGP prefixes that overlap with 202.127.0.0/16

Range	ASN	Company	Num of IPs
202.127.224.0/19	AS4538	China Education and Research Network	8,192
202.127.80.0/20	AS24255	Tannan Cable Television Corporation	4,096
202.127.16.0/20	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	4,096
202.127.144.0/20	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	4,096
202.127.240.0/20	AS4538	China Education and Research Network	4,096
202.127.176.0/20	AS24259	kanuma cable television Corporation	4,096
202.127.96.0/20	AS17910	PT. Tigatra Infokom	4,096
202.127.232.0/21	AS4538	China Education and Research Network	2,048
202.127.32.0/21	AS46030	PT Wahan Inovasi Nusantara	2,048
202.127.200.0/21	AS7497	The Hefei Branch of Chinese Academy of Sciences	2,048
202.127.216.0/21	AS4538	China Education and Research Network	2,048
202.127.40.0/21	AS4808	Information Center, Ministry of Agriculture and Rural Affairs, PRC	2,048
202.127.168.0/21	AS24396	Bank Of China(Hong Kong) Limited	2,048
202.127.0.0/21	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	2,048
202.127.36.0/22	AS46030	PT Wahan Inovasi Nusantara	1,024
202.127.12.0/22	AS9929	Nanjing Institute of Science and Technology Information	1,024
202.127.32.0/22	AS46030	PT Wahan Inovasi Nusantara	1,024
202.127.36.0/23	AS46030	PT Wahan Inovasi Nusantara	512
202.127.48.0/23	AS4808	National Information Center of GACC (National E-Clearance Center of GACC)	512
202.127.34.0/23	AS46030	PT Wahan Inovasi Nusantara	512
202.127.70.0/23	AS4637	Telstra Global Internet Services Network Blocks	512
202.127.30.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
202.127.32.0/23	AS46030	PT Wahan Inovasi Nusantara	512
202.127.38.0/23	AS46030	PT Comradindo Lintasnusa Perkasa	512
202.127.16.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
202.127.144.0/23	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	512
202.127.173.0/24	AS24396	Bank Of China(Hong Kong) Limited	256
202.127.239.0/24	AS4538	China Education and Research Network	256
202.127.10.0/24	AS140220	Sky Broadband	256
202.127.104.0/24	AS17910	Aperto Permata - Niaga Tower	256
202.127.232.0/24	AS4538	China Education and Research Network	256
202.127.99.0/24	AS17910	3GNet Network Operation Center	256
202.127.237.0/24	AS4538	China Education and Research Network	256
202.127.169.0/24	AS24396	Bank Of China(Hong Kong) Limited	256
202.127.96.0/24	AS17910	3Gate Router and Servers	256
202.127.74.0/24	AS4637	Telstra Global Internet Services Network /24 Block	256
202.127.97.0/24	AS17910	3Gate Co-Lococation	256
202.127.79.0/24	AS4637	Telstra Global Internet Services Network Blocks	256
202.127.106.0/24	AS17910	Infrastructure for Serial Customer	256
202.127.153.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
202.127.0.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
202.127.170.0/24	AS24396	Bank Of China(Hong Kong) Limited	256
202.127.100.0/24	AS17910	Allocation for 3GNet Platinum Customer	256
202.127.236.0/24	AS4538	China Education and Research Network	256
202.127.171.0/24	AS24396	Bank Of China(Hong Kong) Limited	256
202.127.73.0/24	AS4637	Telstra Global Internet Services Network /24 Block	256
202.127.2.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	256
202.127.109.0/24	AS17910	DOS NI ROHA	256
202.127.22.0/24	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	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

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
77.167.39.248	AS1136 KPN B.V.	3.90ms from Amsterdam, NL
23.97.185.56	AS8075 Microsoft Corporation	0.22ms from Amsterdam, NL
65.27.46.88	AS10796 Charter Communications Inc	13.23ms from Columbus, US
84.19.113.120	AS51905 Compuweb Communications Services Limited	3.89ms from London, GB
126.150.42.8	AS17676 SoftBank Corp.	3.02ms from Tokyo, JP
17.188.27.24	AS714 Apple Inc.	1.29ms from Ashburn, US
15.188.5.88	AS16509 Amazon.com, Inc.	0.17ms from Paris, FR
90.59.173.24	AS3215 Orange S.A.	8.31ms from Paris, FR
3.133.243.232	AS16509 Amazon.com, Inc.	0.08ms from Columbus, US
2.97.152.40	AS13285 TalkTalk Communications Limited	6.75ms from London, GB
35.75.88.88	AS16509 Amazon.com, Inc.	0.19ms from Tokyo, JP
120.193.62.136	AS56041 China Mobile communications corporation	6.17ms from Hangzhou, CN
116.89.119.152	AS55430 Starhub Ltd	2.15ms from Singapore, SG
99.138.164.40	AS7018 AT&T Enterprises, LLC	7.09ms from Chicago, US
42.176.245.248	AS4837 CHINA UNICOM China169 Backbone	13.44ms from Liaoyang, CN
2.15.245.184	AS3215 Orange S.A.	5.37ms from Marseille, FR
148.75.106.72	AS6128 Cablevision Systems Corp.	5.54ms from New York City, US
154.37.172.248	AS174 Cogent Communications	0.62ms from Frankfurt am Main, DE
176.240.123.232	AS47524 Turksat Uydu Haberlesme ve Kablo TV Isletme A.S.	17.73ms from Istanbul, TR
60.138.208.200	AS17676 SoftBank Corp.	2.70ms from Osaka, JP
123.58.241.24	AS4847 China Networks Inter-Exchange	4.97ms from Beijing, CN
197.165.177.72	AS24863 Link Egypt (Link.NET)	7.65ms from Cairo, EG
193.27.188.88	AS60997 Stadt Koeln	1.81ms from Duesseldorf, DE
187.193.127.24	AS8151 UNINET	5.58ms from Guadalajara, MX
154.91.98.248	AS399077 Tcloudnet	0.31ms from Hong Kong, HK

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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