202.197.24.0/21

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 202.197.24.0/21

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 202.197.0.0/16

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
202.197.176.0/20 AS4538 China Education and Research Network 4,096
202.197.0.0/20 AS4538 China Education and Research Network 4,096
202.197.64.0/20 AS4538 China Education and Research Network 4,096
202.197.48.0/20 AS4538 China Education and Research Network 4,096
202.197.224.0/20 AS4538 China Education and Research Network 4,096
202.197.192.0/20 AS4538 China Education and Research Network 4,096
202.197.208.0/20 AS4538 China Education and Research Network 4,096
202.197.144.0/20 AS4538 China Education and Research Network 4,096
202.197.32.0/20 AS4538 China Education and Research Network 4,096
202.197.112.0/20 AS4538 China Education and Research Network 4,096
202.197.80.0/20 AS4538 China Education and Research Network 4,096
202.197.96.0/20 AS4538 China Education and Research Network 4,096
202.197.16.0/21 AS4538 China Education and Research Network 2,048
202.197.240.0/21 AS4538 China Education and Research Network 2,048
202.197.159.0/24 AS4538 China Education and Research Network 256
202.197.2.0/24 AS4538 China Education and Research Network 256
202.197.0.0/24 AS4538 China Education and Research Network 256
202.197.96.0/24 AS4538 China Education and Research Network 256
202.197.124.0/24 AS4538 China Education and Research Network 256
202.197.111.0/24 AS4538 China Education and Research Network 256
202.197.240.0/24 AS4538 China Education and Research Network 256
202.197.193.0/24 AS4538 China Education and Research Network 256
202.197.112.0/24 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

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
181.82.212.69 AS7303 Telecom Argentina S.A. 9.57ms from Buenos Aires, AR
137.97.229.181 AS55836 Reliance Jio Infocomm Limited 2.66ms from Chennai, IN
39.51.236.213 AS17557 Pakistan Telecommunication Company Limited 4.52ms from Lahore, PK
184.184.148.133 AS22773 Cox Communications Inc. 0.76ms from Phoenix, US
220.87.59.133 AS4766 Korea Telecom 1.40ms from Seoul, KR
110.142.134.213 AS1221 Telstra Limited 0.62ms from Sydney, AU
164.138.183.149 AS197207 Mobile Communication Company of Iran PLC 18.48ms from Az Za`ayin, QA
69.32.192.181 AS27365 Cengage Learning, Inc. 1.32ms from Cincinnati, US
86.172.123.133 AS2856 British Telecommunications PLC 2.60ms from London, GB
189.206.234.245 AS11172 Alestra, S. de R.L. de C.V. 12.72ms from Monterrey, MX
63.247.165.149 AS6128 Cablevision Systems Corp. 1.86ms from New York City, US
44.207.3.165 AS14618 Amazon.com, Inc. 0.39ms from Reston, US
175.119.167.53 AS9318 SK Broadband Co Ltd 7.56ms from Seoul, KR
106.13.29.101 AS38365 Beijing Baidu Netcom Science and Technology Co., Ltd. 4.00ms from Shenzhen, CN
172.4.121.117 AS7018 AT&T Enterprises, LLC 6.58ms from Columbus, US
14.148.132.245 AS4134 CHINANET-BACKBONE 3.60ms from Guangzhou, CN
94.62.89.69 AS12353 Vodafone Portugal 2.52ms from Lisbon, PT
178.140.175.101 AS42610 PJSC Rostelecom 0.99ms from Moscow, RU
96.224.201.133 AS701 Verizon Business 2.74ms from New York City, US
217.170.107.5 AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL 5.37ms from Prague, CZ
104.9.16.5 AS7018 AT&T Enterprises, LLC 10.29ms from Redding, US
116.179.181.53 AS4837 CHINA UNICOM China169 Backbone 7.51ms from Taiyuan, CN
86.97.182.229 AS5384 Emirates Internet 5.02ms from Al Fujairah City, AE
2.132.114.21 AS9198 JSC Kazakhtelecom 2.13ms from Almaty, KZ
172.191.61.245 AS8075 Microsoft Corporation 0.57ms from Ashburn, 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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