202.203.16.0/24

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 202.203.0.0/16
Registry APNIC
ID CDR-CERNET

WHOIS Details

inetnum:        202.202.0.0 - 202.203.255.255
netname:        CDR-CERNET
descr:          China Education and Research Network
descr:          Chengdu Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ASSIGNED NON-PORTABLE
remarks:        origin AS4538
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2021-03-24T13:05:10Z
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 202.203.16.0/24

Range ASN Company Num of IPs
202.203.0.0/16 AS4538 China Education and Research Network 65,536
202.203.0.0/16 AS138378 China Education and Research Network 65,536
202.200.0.0/13 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 202.203.0.0/16

Range ASN Company Num of IPs
202.192.0.0/12 AS4538 China Education and Research Network 1,048,576
202.200.0.0/13 AS4538 China Education and Research Network 524,288
202.203.0.0/16 AS138378 China Education and Research Network 65,536
202.203.0.0/16 AS4538 China Education and Research Network 65,536
202.203.224.0/20 AS4538 China Education and Research Network 4,096
202.203.176.0/20 AS4538 China Education and Research Network 4,096
202.203.208.0/20 AS4538 China Education and Research Network 4,096
202.203.144.0/20 AS4538 China Education and Research Network 4,096
202.203.64.0/20 AS4538 China Education and Research Network 4,096
202.203.48.0/20 AS4538 China Education and Research Network 4,096
202.203.160.0/20 AS4538 China Education and Research Network 4,096
202.203.240.0/20 AS4538 China Education and Research Network 4,096
202.203.32.0/20 AS4538 China Education and Research Network 4,096
202.203.192.0/20 AS4538 China Education and Research Network 4,096
202.203.136.0/21 AS4538 China Education and Research Network 2,048
202.203.80.0/21 AS4538 China Education and Research Network 2,048
202.203.128.0/23 AS4538 China Education and Research Network 512
202.203.176.0/24 AS4538 China Education and Research Network 256
202.203.2.0/24 AS4538 China Education and Research Network 256
202.203.66.0/24 AS4538 China Education and Research Network 256
202.203.187.0/24 AS4538 China Education and Research Network 256
202.203.112.0/24 AS4538 China Education and Research Network 256
202.203.160.0/24 AS4538 China Education and Research Network 256
202.203.132.0/24 AS4538 China Education and Research Network 256
202.203.144.0/24 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

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

IP Address ASN Details
202.203.16.36 AS4538 China Education and Research Network Center 27.88ms from Chengdu, 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
86.88.225.216 AS1136 KPN B.V. 1.06ms from Amsterdam, NL
115.188.175.152 AS4771 Spark New Zealand Trading Ltd. 3.80ms from Auckland, NZ
103.97.216.24 AS136890 TAAL Tech 1.57ms from Bengaluru, IN
134.130.191.40 AS47610 RWTH Aachen University 4.20ms from Frankfurt am Main, DE
14.249.101.216 AS45899 VNPT Corp 2.64ms from Hanoi, VN
60.48.183.24 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 2.21ms from Kuala Lumpur, MY
178.128.166.8 AS14061 DigitalOcean, LLC 0.24ms from London, GB
86.135.29.200 AS2856 British Telecommunications PLC 3.82ms from London, GB
74.42.230.184 AS5650 Frontier Communications of America, Inc. 16.29ms from Los Angeles, US
167.58.75.200 AS6057 Administracion Nacional de Telecomunicaciones 1.73ms from Montevideo, UY
40.74.67.104 AS8075 Microsoft Corporation 0.16ms from Osaka, JP
54.207.116.248 AS16509 Amazon.com, Inc. 0.15ms from Osasco, BR
43.145.88.24 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.21ms from Shanghai, CN
5.13.146.136 AS8708 DIGI ROMANIA S.A. 4.97ms from Bucharest, RO
91.104.246.184 AS213155 Yettel Hungary Ltd. 19.49ms from Budapest, HU
78.165.153.104 AS9121 Turk Telekomunikasyon Anonim Sirketi 9.19ms from Bursa, TR
3.138.116.248 AS16509 Amazon.com, Inc. 0.16ms from Columbus, US
34.61.166.24 AS396982 Google LLC 0.12ms from Council Bluffs, US
109.78.145.88 AS15502 Vodafone Ireland Limited 2.50ms from Dublin, IE
95.100.64.56 AS16625 Akamai Technologies, Inc. 0.30ms from Frankfurt am Main, DE
62.214.247.232 AS8881 1&1 Versatel Deutschland GmbH 2.25ms from Hamburg, DE
34.92.42.152 AS396982 Google LLC 0.10ms from Hong Kong, HK
62.173.40.200 AS29091 ipNX Nigeria Limited 0.61ms from Lagos, NG
119.118.131.72 AS4837 CHINA UNICOM China169 Backbone 9.83ms from Liaoyang, CN
64.135.103.8 AS13645 BroadbandONE, LLC 1.71ms from Miami, 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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