202.199.24.0/21

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 202.198.0.0/15
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 202.199.24.0/21

Range ASN Company Num of IPs
202.198.0.0/15 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 202.199.0.0/16

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
202.198.0.0/15 AS4538 China Education and Research Network 131,072
202.199.0.0/20 AS4538 China Education and Research Network 4,096
202.199.160.0/20 AS4538 China Education and Research Network 4,096
202.199.96.0/20 AS4538 China Education and Research Network 4,096
202.199.224.0/20 AS4538 China Education and Research Network 4,096
202.199.64.0/20 AS4538 China Education and Research Network 4,096
202.199.32.0/20 AS4538 China Education and Research Network 4,096
202.199.144.0/20 AS4538 China Education and Research Network 4,096
202.199.128.0/20 AS4538 China Education and Research Network 4,096
202.199.248.0/21 AS4538 Anshan Normal College 2,048
202.199.112.0/21 AS4538 China Education and Research Network 2,048
202.199.88.0/21 AS4538 China Education and Research Network 2,048
202.199.80.0/21 AS4538 China Education and Research Network 2,048
202.199.240.0/21 AS4538 Anshan Institute of Iron and Steel Technology 2,048
202.199.184.0/22 AS4538 China Education and Research Network 1,024
202.199.16.0/22 AS4538 China Education and Research Network 1,024
202.199.87.0/24 AS4538 China Education and Research Network 256
202.199.136.0/24 AS4538 China Education and Research Network 256
202.199.186.0/24 AS4538 China Education and Research Network 256
202.199.158.0/24 AS4538 China Education and Research Network 256
202.199.155.0/24 AS4538 China Education and Research Network 256

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP

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

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

IP Address ASN Details
202.199.29.112 AS4538 China Education and Research Network Center 6.60ms from Dalian, CN
202.199.26.202 AS4538 China Education and Research Network Center 7.16ms from Liaoyang, CN
202.199.31.254 AS4538 China Education and Research Network Center 6.79ms from Dalian, CN
202.199.24.102 AS4538 China Education and Research Network Center 15.24ms from Beijing, 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
87.106.198.165 AS8560 IONOS SE 0.70ms from Berlin, DE
166.78.217.245 AS19994 Rackspace Hosting 1.20ms from Chicago, US
193.255.82.101 AS8517 National Academic Network and Information Center 1.76ms from Istanbul, TR
126.77.78.5 AS17676 SoftBank Corp. 2.73ms from Tokyo, JP
221.11.116.133 AS4837 CHINA UNICOM China169 Backbone 12.88ms from Xi'an, CN
92.70.94.5 AS1136 KPN B.V. 3.23ms from Amsterdam, NL
125.18.93.5 AS9498 BHARTI Airtel Ltd. 0.88ms from Delhi, IN
77.211.45.213 AS12430 VODAFONE ESPANA S.A.U. 15.79ms from Madrid, ES
79.133.113.181 AS59793 Corporate Internet Service Provider LLC 1.44ms from Moscow, RU
223.223.124.21 AS18144 Enecom,Inc. 6.40ms from Osaka, JP
187.113.80.21 AS18881 TELEFÔNICA BRASIL S.A 11.38ms from Porto Alegre, BR
23.223.214.181 AS16625 Akamai Technologies, Inc. 0.41ms from Sydney, AU
105.110.34.117 AS36947 Telecom Algeria 11.28ms from Tunis, TN
87.247.1.21 AS35566 Kar-Tel LLC 0.84ms from Almaty, KZ
100.6.158.197 AS701 Verizon Business 6.16ms from Ashburn, US
145.239.62.165 AS16276 OVH SAS 0.05ms from Gravelines, FR
109.129.96.197 AS5432 Proximus NV 4.97ms from Gravelines, FR
87.64.208.117 AS5432 Proximus NV 4.54ms from Gravelines, FR
86.179.171.165 AS2856 British Telecommunications PLC 3.56ms from London, GB
176.192.48.245 AS12714 PJSC MegaFon 1.45ms from Moscow, RU
76.164.231.5 AS30117 Classic Vacations, LLC 0.36ms from San Jose, US
75.134.165.197 AS20115 Charter Communications LLC 11.93ms from Chicago, US
65.118.12.101 AS209 CenturyLink Communications, LLC 1.79ms from Chicago, US
103.74.88.21 AS153299 AIRMAX BROADBAND PRIVATE LIMITED 2.57ms from Delhi, IN
65.127.208.101 AS209 CenturyLink Communications, LLC 10.04ms from Denver, 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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