211.84.128.0/21

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 211.84.128.0/21

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
211.84.0.0/21 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
211.84.208.0/21 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

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
87.195.207.85 AS12414 Solcon Internetdiensten B.V. 6.86ms from Amsterdam, NL
23.226.208.37 AS396319 Oxylabs 0.31ms from Ashburn, US
86.101.158.229 AS21334 One Hungary Ltd. 0.63ms from Budapest, HU
201.142.132.69 AS8151 UNINET 3.97ms from Los Angeles, US
201.133.209.181 AS8151 UNINET 4.07ms from Santiago de Queretaro, MX
36.232.180.181 AS3462 Data Communication Business Group 1.68ms from Taichung, TW
118.208.28.245 AS7545 TPG Telecom Limited 1.60ms from Brisbane, AU
91.83.94.181 AS20845 DIGI Tavkozlesi es Szolgaltato Kft. 13.54ms from Budapest, HU
204.148.113.69 AS701 Verizon Business 1.26ms from New York City, US
108.24.188.69 AS701 Verizon Business 3.35ms from New York City, US
34.197.251.197 AS14618 Amazon.com, Inc. 0.15ms from Reston, US
82.2.29.181 AS5089 Virgin Media Limited 5.39ms from London, GB
118.41.7.133 AS4766 Korea Telecom 4.55ms from Seoul, KR
203.106.34.21 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 2.15ms from Sepang, MY
61.245.210.133 AS131934 ICC Corporation 10.18ms from Tokyo, JP
179.183.22.5 AS18881 TELEFÔNICA BRASIL S.A 11.12ms from Belo Horizonte, BR
52.33.87.197 AS16509 Amazon.com, Inc. 0.15ms from Boardman, US
212.101.201.5 AS12437 DTS Systeme Muenster GmbH 5.82ms from Frankfurt am Main, DE
220.163.158.53 AS4134 CHINANET-BACKBONE 10.44ms from Kunming, CN
20.106.75.53 AS8075 Microsoft Corporation 0.20ms from Phoenix, US
108.175.126.5 AS40773 Frantic, LLC. 0.83ms from Secaucus, US
223.220.169.37 AS140061 Qinghai Telecom 1.43ms from Xining, CN
93.223.57.181 AS3320 Deutsche Telekom AG 2.53ms from Duesseldorf, DE
93.226.110.5 AS3320 Deutsche Telekom AG 2.60ms from Duesseldorf, DE
189.178.199.213 AS8151 UNINET 1.09ms from Guadalajara, MX

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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