202.196.72.0/21

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 202.196.0.0/15
Registry APNIC
ID CERNET-CN

WHOIS Details

inetnum:        202.192.0.0 - 202.199.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          SY Region
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:        service provider
remarks:        hostmaster@apnic.net 960130
mnt-by:         APNIC-HM
mnt-irt:        IRT-CERNET-AP
last-modified:  2021-10-30T08:29:34Z
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
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 202.196.72.0/21

Range ASN Company Num of IPs
202.196.0.0/15 AS4538 China Education and Research Network 131,072
202.192.0.0/13 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 202.196.0.0/16

Range ASN Company Num of IPs
202.192.0.0/12 AS4538 China Education and Research Network 1,048,576
202.192.0.0/13 AS4538 China Education and Research Network 524,288
202.196.0.0/15 AS4538 China Education and Research Network 131,072
202.196.176.0/20 AS4538 China Education and Research Network 4,096
202.196.16.0/20 AS4538 China Education and Research Network 4,096
202.196.112.0/20 AS4538 China Education and Research Network 4,096
202.196.96.0/20 AS4538 China Education and Research Network 4,096
202.196.160.0/20 AS4538 China Education and Research Network 4,096
202.196.144.0/20 AS4538 China Education and Research Network 4,096
202.196.208.0/20 AS4538 China Education and Research Network 4,096
202.196.128.0/20 AS4538 China Education and Research Network 4,096
202.196.0.0/20 AS4538 China Education and Research Network 4,096
202.196.192.0/20 AS4538 China Education and Research Network 4,096
202.196.240.0/20 AS4538 Anyang Teachers College 4,096
202.196.32.0/20 AS4538 China Education and Research Network 4,096
202.196.80.0/20 AS4538 China Education and Research Network 4,096
202.196.224.0/20 AS4538 China Education and Research Network 4,096
202.196.68.0/22 AS4538 China Education and Research Network 1,024
202.196.66.0/23 AS4538 China Education and Research Network 512
202.196.65.0/24 AS4538 China Education and Research Network 256
202.196.244.0/24 AS4538 Anyang Teachers College 256
202.196.64.0/24 AS4538 China Education and Research Network 256
202.196.13.0/24 AS4538 China Education and Research Network 256
202.196.0.0/24 AS4538 China Education and Research Network 256
202.196.50.0/24 AS4538 China Education and Research Network 256
202.196.219.0/24 AS4538 China Education and Research Network 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity

Pingable IPs

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

IP Address ASN Details
202.196.79.38 AS4538 China Education and Research Network Center 4.09ms 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
94.56.50.21 AS5384 Emirates Internet 2.56ms from Al Fujairah City, AE
8.36.250.117 AS14155 Rural Telephone Service Co, Inc. 13.18ms from Kansas City, US
210.98.168.245 AS3786 LG DACOM Corporation 1.49ms from Seoul, KR
5.161.14.181 AS213230 Hetzner Online GmbH 0.27ms from Ashburn, US
178.250.10.133 AS45012 dogado GmbH 0.30ms from Dortmund, DE
34.245.154.53 AS16509 Amazon.com, Inc. 0.34ms from Dublin, IE
93.223.21.149 AS3320 Deutsche Telekom AG 4.79ms from Duesseldorf, DE
76.68.141.181 AS577 Bell Canada 3.18ms from Toronto, CA
24.57.165.165 AS7992 Cogeco Connexion Inc. 7.39ms from Toronto, CA
111.40.190.85 AS132525 HeiLongJiang Mobile Communication Company Limited 13.96ms from Dalian, CN
45.234.82.5 AS267345 BOM JESUS NET LTDA 12.41ms from Fortaleza, BR
189.22.216.229 AS4230 CLARO S.A. 10.92ms from Fortaleza, BR
3.68.129.21 AS16509 Amazon.com, Inc. 0.12ms from Frankfurt am Main, DE
189.143.100.69 AS8151 UNINET 10.55ms from Santiago de Queretaro, MX
68.219.226.213 AS8075 Microsoft Corporation 0.23ms from Dublin, IE
78.131.168.69 AS20960 TK Telekom sp. z o.o. 8.48ms from Poznan, PL
47.185.225.229 AS5650 Frontier Communications of America, Inc. 1.81ms from Dallas, US
99.168.104.85 AS7018 AT&T Enterprises, LLC 4.26ms from Dallas, US
73.206.132.165 AS7922 Comcast Cable Communications, LLC 7.14ms from Houston, US
94.16.211.245 AS15600 Quickline AG 4.04ms from Zuerich, CH
87.180.144.5 AS3320 Deutsche Telekom AG 1.97ms from Frankfurt am Main, DE
84.155.66.21 AS3320 Deutsche Telekom AG 6.69ms from Frankfurt am Main, DE
180.94.163.149 AS4609 Companhia de Telecomunicacoes de Macau SARL 3.17ms from Hong Kong, HK
80.253.247.21 AS60707 Kapteyan A.S. 0.20ms from Istanbul, TR
18.170.78.165 AS16509 Amazon.com, Inc. 0.17ms from London, GB

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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