202.205.131.0/24

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	202.200.0.0/13
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 202.205.131.0/24

Range	ASN	Company	Num of IPs
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
202.205.151.0/24	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
202.205.112.0/24	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

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

IP Address	ASN	Details
202.205.131.19	AS4538 China Education and Research Network Center	9.74ms from Jining, 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
129.159.97.152	AS31898 Oracle Corporation	0.23ms from Ashburn, US
18.198.117.104	AS16509 Amazon.com, Inc.	0.15ms from Frankfurt am Main, DE
154.23.146.104	AS140224 Nebula Global LLC	0.65ms from Hong Kong, HK
195.223.251.168	AS3269 Telecom Italia S.p.A.	16.20ms from Milan, IT
13.223.147.104	AS14618 Amazon.com, Inc.	0.21ms from Reston, US
119.199.100.104	AS4766 Korea Telecom	7.21ms from Seoul, KR
68.97.189.8	AS22773 Cox Communications Inc.	8.28ms from Dallas, US
81.152.0.104	AS2856 British Telecommunications PLC	4.43ms from London, GB
128.223.30.216	AS3582 University of Oregon	3.25ms from Portland, US
95.234.254.104	AS3269 Telecom Italia S.p.A.	17.18ms from Milan, IT
23.238.48.248	AS54290 Hostwinds LLC.	0.26ms from Seattle, US
133.114.137.168	AS2527 Sony Network Communications Inc.	14.96ms from Tokyo, JP
81.241.224.56	AS5432 Proximus NV	6.53ms from Amsterdam, NL
34.88.248.72	AS396982 Google LLC	0.14ms from Hamina, FI
95.93.217.152	AS2860 NOS COMUNICACOES, S.A.	5.29ms from Lisbon, PT
2.101.166.8	AS13285 TalkTalk Communications Limited	5.31ms from London, GB
128.97.60.72	AS52 University of California, Los Angeles	1.12ms from Los Angeles, US
153.204.10.120	AS4713 NTT Communications Corporation	3.17ms from Tokyo, JP
119.91.14.8	AS45090 Shenzhen Tencent Computer Systems Company Limited	3.63ms from Guangzhou, CN
94.55.208.40	AS47524 Turksat Uydu Haberlesme ve Kablo TV Isletme A.S.	4.99ms from Istanbul, TR
217.20.76.24	AS33894 MTS PJSC	15.98ms from Krasnoyarsk, RU
96.102.190.24	AS7922 Comcast Cable Communications, LLC	12.08ms from Seattle, US
86.235.17.184	AS3215 Orange S.A.	15.52ms from Strasbourg, FR
3.135.144.200	AS16509 Amazon.com, Inc.	0.12ms from Columbus, US
146.166.131.24	AS14977 State of Wyoming Department A&I	19.15ms from Denver, US

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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