218.199.8.0/21

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	218.199.0.0/16
Registry	APNIC
ID	CERNET-CN

WHOIS Details

inetnum:        218.196.0.0 - 218.199.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Wuhan 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:  2020-10-20T00:56:39Z
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 218.199.8.0/21

Range	ASN	Company	Num of IPs
218.199.0.0/16	AS24358	China Education and Research Network	65,536
218.199.0.0/16	AS4538	China Education and Research Network	65,536
218.192.0.0/13	AS4538	China Education and Research Network	524,288

Nearby Ranges

BGP prefixes that overlap with 218.199.0.0/16

Range	ASN	Company	Num of IPs
218.192.0.0/13	AS4538	China Education and Research Network	524,288
218.199.0.0/16	AS4538	China Education and Research Network	65,536
218.199.0.0/16	AS24358	China Education and Research Network	65,536
218.199.96.0/20	AS4538	China Education and Research Network	4,096
218.199.64.0/20	AS4538	China Education and Research Network	4,096
218.199.144.0/20	AS4538	China Education and Research Network	4,096
218.199.16.0/20	AS4538	China Education and Research Network	4,096
218.199.48.0/20	AS4538	China Education and Research Network	4,096
218.199.224.0/20	AS4538	China Education and Research Network	4,096
218.199.128.0/20	AS4538	China Education and Research Network	4,096
218.199.160.0/20	AS4538	China Education and Research Network	4,096
218.199.192.0/20	AS4538	China Education and Research Network	4,096
218.199.176.0/20	AS4538	China Education and Research Network	4,096
218.199.80.0/20	AS4538	China Education and Research Network	4,096
218.199.112.0/20	AS4538	China Education and Research Network	4,096
218.199.0.0/21	AS4538	China Education and Research Network	2,048
218.199.32.0/21	AS4538	China Education and Research Network	2,048
218.199.208.0/22	AS4538	China Education and Research Network	1,024
218.199.212.0/22	AS4538	China Education and Research Network	1,024
218.199.44.0/22	AS4538	China Education and Research Network	1,024
218.199.40.0/22	AS4538	China Education and Research Network	1,024
218.199.210.0/23	AS4538	China Education and Research Network	512
218.199.181.0/24	AS4538	China Education and Research Network	256
218.199.88.0/24	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
218.199.8.1	AS4538 China Education and Research Network Center	2.10ms from Wuhan, 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
47.253.144.197	AS45102 Alibaba (US) Technology Co., Ltd.	0.25ms from Ashburn, US
1.168.193.149	AS3462 Data Communication Business Group	1.74ms from Taichung, TW
135.236.24.21	AS8075 Microsoft Corporation	0.26ms from Amsterdam, NL
219.232.47.133	AS4847 China Networks Inter-Exchange	3.98ms from Beijing, CN
125.23.224.149	AS9498 BHARTI Airtel Ltd.	0.65ms from Chennai, IN
212.55.88.21	AS25133 LLC "McLaut-Invest"	4.31ms from Kyiv, UA
45.32.136.133	AS20473 The Constant Company, LLC	0.16ms from San Jose, US
122.33.53.213	AS17858 LG POWERCOMM	1.92ms from Seoul, KR
80.191.86.149	AS58224 Iran Telecommunication Company PJS	16.14ms from Yerevan, AM
1.197.35.53	AS4134 CHINANET-BACKBONE	9.51ms from Zhengzhou, CN
24.216.30.181	AS20115 Charter Communications LLC	4.05ms from Atlanta, US
108.230.55.133	AS7018 AT&T Enterprises, LLC	12.78ms from Atlanta, US
74.132.203.117	AS10796 Charter Communications Inc	13.06ms from Columbus, US
72.241.12.21	AS13490 Buckeye Cablevision, Inc.	9.50ms from Detroit, US
40.69.63.69	AS8075 Microsoft Corporation	0.25ms from Dublin, IE
175.178.150.213	AS45090 Shenzhen Tencent Computer Systems Company Limited	1.95ms from Guangzhou, CN
100.42.244.245	AS11260 EastLink	4.41ms from Halifax, CA
62.86.130.53	AS3269 Telecom Italia S.p.A.	5.07ms from Milan, IT
73.162.90.181	AS7922 Comcast Cable Communications, LLC	8.18ms from San Jose, US
178.40.159.229	AS6855 Slovak Telekom, a.s.	1.51ms from Bratislava, SK
76.141.225.229	AS7922 Comcast Cable Communications, LLC	5.04ms from Chicago, US
70.113.180.53	AS11427 Charter Communications Inc	12.33ms from Dallas, US
91.50.13.37	AS3320 Deutsche Telekom AG	4.86ms from Duesseldorf, DE
47.97.119.213	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	5.18ms from Hangzhou, CN
108.190.61.37	AS33363 Charter Communications, Inc	11.62ms from Orlando, 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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