202.120.224.0/19

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	202.120.128.0/17
Registry	APNIC
ID	CERNET-CN

Pingable IPs

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

IP Address	ASN	Details
202.120.234.133	AS4538 China Education and Research Network Center	1.75ms from Shanghai, CN
202.120.230.249	AS4538 China Education and Research Network Center	1.86ms from Shanghai, CN
202.120.235.195	AS4538 China Education and Research Network Center	1.72ms from Shanghai, CN
202.120.224.17	AS4538 China Education and Research Network Center	1.91ms from Shanghai, CN
202.120.229.19	AS4538 China Education and Research Network Center	2.77ms from Shanghai, CN
202.120.253.1	AS4538 China Education and Research Network Center	3.65ms from Shanghai, CN
202.120.227.66	AS4538 China Education and Research Network Center	1.99ms from Shanghai, CN
202.120.225.9	AS4538 China Education and Research Network Center	2.10ms from Shanghai, CN
202.120.231.194	AS4538 China Education and Research Network Center	2.50ms from Shanghai, CN
202.120.247.93	AS4538 China Education and Research Network Center	2.94ms from Shanghai, CN
202.120.233.1	AS4538 China Education and Research Network Center	2.98ms from Shanghai, CN
202.120.237.37	AS4538 China Education and Research Network Center	1.77ms from Shanghai, CN
202.120.245.5	AS4538 China Education and Research Network Center	31.98ms from Shanghai, CN
202.120.232.1	AS4538 China Education and Research Network Center	2.43ms 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
66.189.26.99	AS20115 Charter Communications LLC	12.46ms from Ashburn, US
5.145.119.51	AS60423 E-Money Net Developers 24 Company Private Joint Stock	15.12ms from Baku, AZ
117.203.239.51	AS9829 National Internet Backbone	12.69ms from Delhi, IN
84.151.28.67	AS3320 Deutsche Telekom AG	6.10ms from Frankfurt am Main, DE
177.62.229.227	AS26599 TELEFÔNICA BRASIL S.A	5.14ms from Osasco, BR
177.118.190.195	AS27699 TELEFÔNICA BRASIL S.A	7.05ms from Osasco, BR
86.205.15.19	AS3215 Orange S.A.	8.19ms from Paris, FR
200.220.32.3	AS5772 Unisys Brasil Ltda.	1.20ms from Rio de Janeiro, BR
137.131.216.211	AS31898 Oracle Corporation	0.26ms from Sao Paulo, BR
106.12.187.115	AS38365 Beijing Baidu Netcom Science and Technology Co., Ltd.	6.69ms from Shanghai, CN
1.34.249.131	AS3462 Data Communication Business Group	0.79ms from Taipei, TW
162.209.91.3	AS19994 Rackspace Hosting	1.32ms from Chicago, US
85.39.0.51	AS3269 Telecom Italia S.p.A.	9.73ms from Milan, IT
85.34.30.51	AS3269 Telecom Italia S.p.A.	0.67ms from Milan, IT
69.193.89.179	AS11351 Charter Communications Inc	8.43ms from New York City, US
27.95.72.131	AS2516 KDDI CORPORATION	1.43ms from Tokyo, JP
175.210.249.211	AS4766 Korea Telecom	1.61ms from Seoul, KR
118.72.36.19	AS4837 CHINA UNICOM China169 Backbone	7.42ms from Taiyuan, CN
51.187.219.3	AS5607 Sky UK Limited	1.70ms from Dublin, IE
49.167.82.227	AS17858 LG POWERCOMM	1.92ms from Seoul, KR
66.22.122.35	AS198949 Radware Ltd	0.34ms from Amsterdam, NL
39.106.4.51	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	2.07ms from Beijing, CN
34.79.221.51	AS396982 Google LLC	0.13ms from Brussels, BE
187.123.74.51	AS28573 Claro NXT Telecomunicacoes Ltda	14.06ms from Fortaleza, BR
94.199.75.147	AS50071 MTS PJSC	17.40ms from Saint Petersburg, RU

WHOIS Details

inetnum:        202.112.0.0 - 202.121.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          China Education and Research Network Center
descr:          Tsinghua University
descr:          Beijing, 100084
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:  2020-09-03T09:16:29Z
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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        [email protected] 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:         [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        [email protected] was validated on 2025-01-22
abuse-mailbox:  [email protected]
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:         [email protected]
remarks:        [email protected]
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 202.120.224.0/19

Range	ASN	Company	Num of IPs
202.120.128.0/17	AS4538	China Education and Research Network	32,768
202.120.0.0/16	AS4538	China Education and Research Network	65,536
202.120.0.0/16	AS24364	China Education and Research Network	65,536
202.120.0.0/15	AS4538	China Education and Research Network	131,072

BGP prefixes that are contained by 202.120.224.0/19

Range	ASN	Company	Num of IPs
202.120.234.0/24	AS4538	China Education and Research Network	256
202.120.235.0/24	AS4538	China Education and Research Network	256
202.120.247.0/24	AS4538	China Education and Research Network	256
202.120.224.0/24	AS4538	China Education and Research Network	256

Nearby Ranges

BGP prefixes that overlap with 202.120.0.0/16

Range	ASN	Company	Num of IPs
202.120.0.0/15	AS4538	China Education and Research Network	131,072
202.120.0.0/16	AS4538	China Education and Research Network	65,536
202.120.0.0/16	AS24364	China Education and Research Network	65,536
202.120.0.0/17	AS4538	China Education and Research Network	32,768
202.120.128.0/17	AS4538	China Education and Research Network	32,768
202.120.0.0/18	AS24364	China Education and Research Network	16,384
202.120.0.0/18	AS4538	China Education and Research Network	16,384
202.120.112.0/20	AS4538	China Education and Research Network	4,096
202.120.208.0/20	AS4538	China Education and Research Network	4,096
202.120.208.0/20	AS24364	China Education and Research Network	4,096
202.120.160.0/20	AS4538	China Education and Research Network	4,096
202.120.128.0/20	AS4538	China Education and Research Network	4,096
202.120.64.0/20	AS4538	China Education and Research Network	4,096
202.120.176.0/20	AS4538	China Education and Research Network	4,096
202.120.192.0/21	AS4538	China Education and Research Network	2,048
202.120.200.0/22	AS4538	China Education and Research Network	1,024
202.120.247.0/24	AS4538	China Education and Research Network	256
202.120.43.0/24	AS4538	China Education and Research Network	256
202.120.40.0/24	AS4538	China Education and Research Network	256
202.120.108.0/24	AS4538	China Education and Research Network	256
202.120.125.0/24	AS4538	China Education and Research Network	256
202.120.188.0/24	AS4538	China Education and Research Network	256
202.120.181.0/24	AS4538	China Education and Research Network	256
202.120.118.0/24	AS4538	China Education and Research Network	256
202.120.126.0/24	AS4538	China Education and Research Network	256
202.120.235.0/24	AS4538	China Education and Research Network	256
202.120.209.0/24	AS4538	China Education and Research Network	256
202.120.19.0/24	AS4538	China Education and Research Network	256
202.120.146.0/24	AS4538	China Education and Research Network	256
202.120.2.0/24	AS4538	China Education and Research Network	256
202.120.234.0/24	AS4538	China Education and Research Network	256
202.120.58.0/24	AS4538	China Education and Research Network	256
202.120.215.0/24	AS4538	China Education and Research Network	256
202.120.224.0/24	AS4538	China Education and Research Network	256

Hosted domains

There are 13 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
202.120.224.82	mashengming.com	1
202.120.224.16	shmu.edu.cn	1

Hosted domains API

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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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