211.84.0.0/21

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 211.80.0.0/13
Registry APNIC
ID CERNET-CN

WHOIS Details

inetnum:        211.84.0.0 - 211.85.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Wuhan Regional Network
country:        CN
admin-c:        JW1-CN
tech-c:         XL1-CN
tech-c:         SZ2-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:30Z
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

person:         Jianping Wu
address:        China Education and Research Network Center
address:        Room 225, Main Building, Tsinghua University
address:        Beijing 100084
address:        CN
country:        CN
phone:          +86-10-6278-5983
fax-no:         +86-10-6278-5933
e-mail:         jianping@cernet.edu.cn
nic-hdl:        JW1-CN
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:25Z
source:         APNIC

person:         Shuang Zhu
address:        China Education and Research Network Information Center
address:        Room 225, Main Building, Tsinghua University
address:        Beijing 100084, China
country:        CN
phone:          +86-10-6278-5931
fax-no:         +86-10-6278-5933
e-mail:         szhu@cernet.edu.cn
nic-hdl:        SZ2-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:36Z
source:         APNIC

person:         Xing Li
address:        China Education and Research Network Center
address:        Room 225, Main Building, Tsinghua University
address:        Beijing 100084
address:        CN
country:        CN
phone:          +86-10-6278-5983
fax-no:         +86-10-6278-5933
e-mail:         xing@cernet.edu.cn
nic-hdl:        XL1-CN
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:25Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 211.84.0.0/21

Range ASN Company Num of IPs
211.80.0.0/13 AS4538 China Education and Research Network 524,288

Nearby Ranges

BGP prefixes that overlap with 211.84.0.0/16

Range ASN Company Num of IPs
211.80.0.0/13 AS4538 China Education and Research Network 524,288
211.84.240.0/20 AS4538 China Education and Research Network 4,096
211.84.144.0/20 AS4538 China Education and Research Network 4,096
211.84.160.0/20 AS4538 China Education and Research Network 4,096
211.84.112.0/20 AS4538 China Education and Research Network 4,096
211.84.64.0/20 AS4538 China Education and Research Network 4,096
211.84.56.0/21 AS4538 China Education and Research Network 2,048
211.84.224.0/21 AS4538 China Education and Research Network 2,048
211.84.16.0/21 AS4538 China Education and Research Network 2,048
211.84.88.0/21 AS4538 China Education and Research Network 2,048
211.84.24.0/21 AS4538 China Education and Research Network 2,048
211.84.200.0/21 AS4538 China Education and Research Network 2,048
211.84.80.0/21 AS4538 China Education and Research Network 2,048
211.84.128.0/21 AS4538 China Education and Research Network 2,048
211.84.208.0/21 AS4538 China Education and Research Network 2,048
211.84.8.0/22 AS4538 China Education and Research Network 1,024
211.84.156.0/24 AS4538 China Education and Research Network 256
211.84.18.0/24 AS4538 China Education and Research Network 256
211.84.158.0/24 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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Pingable IPs

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

IP Address ASN Details
211.84.5.1 AS4538 China Education and Research Network Center 4.74ms from Zhengzhou, 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
44.227.169.181 AS16509 Amazon.com, Inc. 0.21ms from Boardman, US
76.112.35.213 AS7922 Comcast Cable Communications, LLC 7.09ms from Flint, US
194.184.191.197 AS3269 Telecom Italia S.p.A. 1.72ms from Milan, IT
198.147.176.5 AS25810 The New London Hospital Association, Inc 8.70ms from New York City, US
54.162.121.149 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
189.190.46.181 AS8151 UNINET 6.45ms from Santiago de Queretaro, MX
190.7.186.213 AS262502 FLYLink Telecom 8.79ms from Sao Paulo, BR
24.78.166.133 AS6327 Shaw Communications Inc. 9.65ms from Saskatoon, CA
58.122.14.117 AS9318 SK Broadband Co Ltd 1.35ms from Seoul, KR
218.237.48.213 AS9318 SK Broadband Co Ltd 1.10ms from Seoul, KR
44.250.219.53 AS16509 Amazon.com, Inc. 0.52ms from Boardman, US
8.42.106.245 AS3356 Level 3 Parent, LLC 0.63ms from Chicago, US
4.8.17.117 AS3356 Level 3 Parent, LLC 0.40ms from Kansas City, US
31.96.126.213 AS2856 British Telecommunications PLC 1.84ms from London, GB
172.102.241.101 AS54623 One Internet America, LLC 2.18ms from Los Angeles, US
187.250.94.165 AS8151 UNINET 3.89ms from Los Angeles, US
4.71.100.101 AS3356 Level 3 Parent, LLC 0.58ms from Chicago, US
23.114.197.117 AS7018 AT&T Enterprises, LLC 8.10ms from Dallas, US
164.51.85.101 AS8103 Florida Department of Management Services - Division of Telecommunications 6.66ms from Jacksonville, US
218.57.230.101 AS4837 CHINA UNICOM China169 Backbone 5.56ms from Jinan, CN
86.178.45.117 AS2856 British Telecommunications PLC 6.24ms from London, GB
210.199.158.149 AS2516 KDDI CORPORATION 2.37ms from Osaka, JP
40.124.87.245 AS8075 Microsoft Corporation 0.85ms from San Antonio, US
218.158.77.133 AS4766 Korea Telecom 3.40ms from Seoul, KR
211.24.125.181 AS9930 TTNET-MY 1.89ms from Sepang, MY

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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